৪০১.
MW of Albumin
PrepBank · বিষয়ভিত্তিক প্রশ্ন
Physiology
Physiology
PrepBank · পাতা ৫ / ৯ · ৪০১–৫০০ / ৮৮৮
৪০২.
Maturation of the erythroblast involves except:
ব্যাখ্যা
Increased condensation and finally pyknosis of the nucleus
৪০৩.
Lysis of blood clots by;
৪০৪.
Non-chromosomal DNA found in-
৪০৫.
Which organelle is important in specialized cellular signalling?
ব্যাখ্যা
Explanations:
Cells contain a variety of organelles that perform specialized cell functions. The nucleus is an organelle that contains DNA and is the site of gene transcription. The endoplasmic reticulum and the Golgi apparatus are important in protein processing and the targeting of proteins to correct compartments within the cell. Lysosomes and peroxisomes are membranebound organelles that contribute to protein and lipid processing. Mitochondria are organelles that allow for oxidative phosphorylation in eukaryotic cells and also are important in specialized cellular signaling.
Cells contain a variety of organelles that perform specialized cell functions. The nucleus is an organelle that contains DNA and is the site of gene transcription. The endoplasmic reticulum and the Golgi apparatus are important in protein processing and the targeting of proteins to correct compartments within the cell. Lysosomes and peroxisomes are membranebound organelles that contribute to protein and lipid processing. Mitochondria are organelles that allow for oxidative phosphorylation in eukaryotic cells and also are important in specialized cellular signaling.
৪০৬.
Factors increase prolactin secretion?
৪০৭.
Which stimulates secretion of uterine milk?
৪০৮.
The decrease in O2 affinity of hemoglobin when the pH of blood falls is called the
ব্যাখ্যা
[Ganong 24th p-643]
৪০৯.
Accessory digestive organs excludes
ব্যাখ্যা
Accessory digestive organs are those which help primary digestive organs in the process of digestion. Accessory digestive organs are:
• Teeth
• Tongue
• Salivary glands
• Exocrine part of pancreas
• Liver
• Gallbladder
৪১০.
Nerve cells in the anterior gray columns
ব্যাখ্যা
Nerve cells in the anterior gray columns
• Large & multipolar and Axons pass out in the anterior nerve roots as a-efferents
• Smaller nerve cells are multipolar and Axons pass out in anterior roots as y- efferents
• Large & multipolar and Axons pass out in the anterior nerve roots as a-efferents
• Smaller nerve cells are multipolar and Axons pass out in anterior roots as y- efferents
৪১১.
Bifid broad P wave indicates hypertrophy of
ব্যাখ্যা
Explanation:
'P' wave may become tall peaked or broad and bifid (notched)
Tall, peaked: right atrial hypertrophy
Bifid broad: left atrial hypertrophy
৪১২.
Manifestations of shock includes all of the following except?
ব্যাখ্যা
Explanation:
Manifestations of shock
• Decrease in cardiac output
• Low blood pressure
• Rapid thready pulse
• Pale and cold skin
• Increase in respiratory rate
• Restless or lethargy
৪১৩.
Urine volume can be as low as ... L/day in a dehydrated person?
ব্যাখ্যা
306
Urine volume can be as low as 0.5 L/day in a dehydrated person or as high as 20 L/day in a person who has been drinking tremendous amounts of water.
৪১৪.
At a normal heart rate, the duration(second) of ventricular systole is
ব্যাখ্যা
Explanation:
At a normal heart rate the duration of systole and diastole are:
Atrial systole: 0.1 second
Atrial diastole: 0.7 second
Ventricular systole: 0.3 second
Ventricular diastole: 0.5 second
৪১৫.
RBCs
৪১৬.
Receptor for pain
৪১৭.
New olfactory area
৪১৮.
Vasogenic shock excludes
৪১৯.
Effect of exercise on cardiac output excludes
ব্যাখ্যা
Explanation:
Effect of exercise on cardiac output
Exercise increase cardiac output and it is proportionate exercise intensity. The responses to exercise are:
• Positive chronotropism (i.e. increase heart rate)
• Positive inotropism (i.e. increase myocardial contractility)
• Increase venous return and thus stroke volume
• Decrease in total peripheral resistance
৪২০.
Which of the following hormone is called “Stress Hormone”?
ব্যাখ্যা
Cortisol is stress hormone
৪২১.
Ghrelin is released by the
ব্যাখ্যা
Ghrelin is released by the stomach.
৪২২.
A 32-year-old builder presents in accident and emergency in a distressed state. He reports suffering from chest pain for the last 2 weeks, the pain is sharp and only occurs when he moves heavy objects. He has a family history of cardiovascular disease and is worried about a heart attack. His blood gas findings are as follows: pH = 7.47; PCO2 = 3.3; PO2 = 15.3; bicarbonate = 17.53. The most likely diagnosis is:
ব্যাখ্যা
The history in this case suggests the patient's chest pain is due to muscular injury rather than anything more sinister. The patient's anxiety about cardiovascular morbidity has ultimately resulted in hyperventilation causing an acute respiratory alkalosis . Acid base abnormalities can be solved by either considering the Henderson-Hasselbach equation (CO2 + H2O → H2CO3 → H+ + HCO3-), whereby change in the product(s) on one side of the equation is balanced by a shift in equilibrium. For example, in this case the patient's hyperventilation causes a reduction in CO2, in order to increase the CO₂ the equilibrium shifts towards CO₂ + H₂O which causes a reduction in H+ (alkalosis) and HCO3-. This process occurs in respiratory alkalosis with metabolic compensation (C). If the patient had a true cardiac arrest it would cause a surge in lactic acidosis hence H+ concentration increases causing a metabolic acidosis (B). In order to balance this change, the equilibrium shifts away from H+ and causes increased CO2 production which can manifest as an increased respiratory rate, otherwise called 'metabolic acidosis with respiratory compensation' (D). In a respiratory acidosis with metabolic compensation (A) scenario, a patient may have a respiratory abnormality such as chronic hypoventilation. The accumulation of CO2 which leads to increased H+ is compensated for by bicarbonate which is subsequently reduced. In more chronic conditions, the bicarbonate becomes elevated.
৪২৩.
Vit-k dependent blood clotting factors exclude:
ব্যাখ্যা
Vit-k dependent blood clotting factors
1. Factor ll(prothrombin)
2. Factor Vll
3. Factor IX
4. Factor X
1. Factor ll(prothrombin)
2. Factor Vll
3. Factor IX
4. Factor X
৪২৪.
The second heart sound is caused by
৪২৫.
Causes of eosinophilia:
৪২৬.
In clonus which of the following motor activity is increased?
৪২৭.
Types of RNA excludes:
ব্যাখ্যা
RNA three types
Messenger RNA , Ribosomal RNA, Transfer RNA
Messenger RNA , Ribosomal RNA, Transfer RNA
৪২৮.
At high altitude there is increase in
৪২৯.
Highest oxygen consumption per 100 gm tissue
৪৩০.
Incorrect about serum
ব্যাখ্যা
Explanations:
Serum contains no fibrinogen
Serum contains no fibrinogen
৪৩১.
Root value of knee jerk
৪৩২.
Hormone act by cGMP mechanism
৪৩৩.
Normal quiet breathing is accomplished almost entirely by movement of the
ব্যাখ্যা
Reference: Guyton 14th; P- 491
৪৩৪.
Contraction of medial rectus helps in accommodation of eye by
৪৩৫.
Cell membrane is semipermeable because of having
ব্যাখ্যা
Explanations:
The cell and the intracellular organelles are surrounded by semipermeable membranes. Biological membranes have a lipid bilayer core that is populated by structural and functional proteins. These proteins contribute greatly to the semipermeable properties of biological membrane.
The cell and the intracellular organelles are surrounded by semipermeable membranes. Biological membranes have a lipid bilayer core that is populated by structural and functional proteins. These proteins contribute greatly to the semipermeable properties of biological membrane.
৪৩৬.
Which is nuclear maturation defect anemia?
৪৩৭.
Which promotes development of female breast & secretion of milk?
৪৩৮.
Dandy walker malforamtion is associated with
৪৩৯.
Clinical safe range of pH is
ব্যাখ্যা
Clinical safe range of pH is 7.3-7.5
ABC of Biochemistry 6th - P:342
ABC of Biochemistry 6th - P:342
৪৪০.
Slow fibre has
ব্যাখ্যা
Fast Fibers (Type II, White Muscle)
The following are characteristics of fast fibers:
1. Fast fibers are large for great strength of contraction.
2. Fast fibers have an extensive sarcoplasmic reticulum for rapid release of calcium ions to initiate con- traction.
3. Large amounts of glycolytic enzymes are present in fast fibers for rapid release of energy by the glycolytic process.
4. Fast fibers have a less extensive blood supply than slow fibers because oxidative metabolism is of sec- ondary importance.
5. Fast fibers have fewer mitochondria than slow fibers, also because oxidative metabolism is secondary.
A deficit of red myoglobin in fast muscle gives it the name white muscle.
The following are characteristics of fast fibers:
1. Fast fibers are large for great strength of contraction.
2. Fast fibers have an extensive sarcoplasmic reticulum for rapid release of calcium ions to initiate con- traction.
3. Large amounts of glycolytic enzymes are present in fast fibers for rapid release of energy by the glycolytic process.
4. Fast fibers have a less extensive blood supply than slow fibers because oxidative metabolism is of sec- ondary importance.
5. Fast fibers have fewer mitochondria than slow fibers, also because oxidative metabolism is secondary.
A deficit of red myoglobin in fast muscle gives it the name white muscle.
৪৪১.
During normal quiet respiration---------------------of the total energy expended by the body is required for pulmonary ventilation.
ব্যাখ্যা
Energy Required for Respiration.
During normal quiet respiration, only 3% to 5% of the total energy expended by the body is required for pulmonary ventilation. However, during heavy exercise, the amount of energy required can increase as much as 50-fold, especially if the person has any degree of increased airway resistance or decreased pulmo- nary compliance. Therefore, one of the major limitations on the intensity of exercise that can be performed is the person's ability to provide enough muscle energy for the respiratory process alone.
During normal quiet respiration, only 3% to 5% of the total energy expended by the body is required for pulmonary ventilation. However, during heavy exercise, the amount of energy required can increase as much as 50-fold, especially if the person has any degree of increased airway resistance or decreased pulmo- nary compliance. Therefore, one of the major limitations on the intensity of exercise that can be performed is the person's ability to provide enough muscle energy for the respiratory process alone.
৪৪২.
Excess Catecholamine causes-
ব্যাখ্যা
Phaeochromocytoma is a catecholamine secreting tumor.
৪৪৩.
Multiple myeloma is associated with
৪৪৪.
Ep is used in
ব্যাখ্যা
Erythropoietin is produced by interstitial cells in the peritubular capillary bed of the kidneys and by perivenous hepatocytes in the liver. It is also produced in the brain, where it exerts a protective effect against excitotoxic damage triggered by hypoxia; and in the uterus and oviducts, where it is induced by estrogen and appears to mediate estrogen-dependent angiogenesis.
The gene for the hormone has been cloned, and recombinant erythropoietin produced in animal cells is available for clinical use as epoetin alfa.
The recombinant erythropoietin is of value in the treatment of the anemia associated with kidney failure; 90% of the patients with end-stage renal disease who are undergoing dialysis are anemic as a result of erythropoietin deficiency. Erythropoietin is also used to stimulate red cell production in individuals who are banking a supply of their own blood in preparation for autologous transfusions during elective surgery (see Chapter 31).
The gene for the hormone has been cloned, and recombinant erythropoietin produced in animal cells is available for clinical use as epoetin alfa.
The recombinant erythropoietin is of value in the treatment of the anemia associated with kidney failure; 90% of the patients with end-stage renal disease who are undergoing dialysis are anemic as a result of erythropoietin deficiency. Erythropoietin is also used to stimulate red cell production in individuals who are banking a supply of their own blood in preparation for autologous transfusions during elective surgery (see Chapter 31).
৪৪৫.
Cell membrane is semipermeable because of having
ব্যাখ্যা
Explanations:
The cell and the intracellular organelles are surrounded by semipermeable membranes. Biological membranes have a lipid bilayer core that is populated by structural and functional proteins. These proteins contribute greatly to the semipermeable properties of biological membrane.
The cell and the intracellular organelles are surrounded by semipermeable membranes. Biological membranes have a lipid bilayer core that is populated by structural and functional proteins. These proteins contribute greatly to the semipermeable properties of biological membrane.
৪৪৬.
Hematopoietic function of cortisol is to increase count of
ব্যাখ্যা
Hematopoietic function of cortisol
· BEL ↓ (basophil, Eosinophil, Lymphocyte)
· PEN ↑ (Platelet, erythrocyte, neutrophil)
· BEL ↓ (basophil, Eosinophil, Lymphocyte)
· PEN ↑ (Platelet, erythrocyte, neutrophil)
৪৪৭.
Which cell of the pancreas secrets amylin
৪৪৮.
Stimuli that inhibit gastrin secretion
ব্যাখ্যা
Somatostatin inhibits gastrin secretion.
৪৪৯.
Which of the following is the site of Na+–bile acid cotransport?
ব্যাখ্যা
Explanation-
★Bile salts are recirculated to the liver in the enterohepatic circulation via a Na+–bile acid cotransporter located in the ileum of the small intestine.
Reference-BRS physiology/6th/P-212/Fig-6.12
★Bile salts are recirculated to the liver in the enterohepatic circulation via a Na+–bile acid cotransporter located in the ileum of the small intestine.
Reference-BRS physiology/6th/P-212/Fig-6.12
৪৫০.
Pathological causes of sinus bradycardia exclude
ব্যাখ্যা
Explanation:
Pathological causes of sinus bradycardia
• Hypothermia
• Hypothyroidism
• Myocardial infraction
• Raised intracranial pressure
• Cholestatic jaundice
• Drugs (beta-blockers, digoxin, antiarrhythmic drugs)
৪৫১.
A raised blood pH & Bicarbonate level is consistent with-?
ব্যাখ্যা
Metabolic effects of prolonged vomiting are-
-Metabolic alkalosis
-Hypovolemia leading to lactic acidosis
-Hypokalemia
-Hypochloremia
-Paradoxical aciduria
-Compensatory hypoventilation
৪৫২.
Following which is most important control system under negative feedback mechanism-?
ব্যাখ্যা
Blood pressure regulation is the most important Which is regulated by negative feedback mechanism.
৪৫৩.
A 56-year-old man, diagnosed with emphysema, presents with a one-month history of jaundice and ascites. Your registrar suspects that this patient may have liver disease secondary to a₁-antitrypsin deficiency. Select the most likely mode of inheritance from the list below:
ব্যাখ্যা
a₁-antitrypsin deficiency is an autosomal recessive disorder (C), which results from single amino acid substitutions at positions 264 and 342 on chromosome 14. ₁-antitrypsin is a serine protease, synthesized in the liver, required in controlling inflammatory cascades. The lack of this serine protease results in emphysema (75 per cent), chronic liver disease and hepatocellular carcinoma, asthma, pancreatitis, gallstones, Wegener's granulomatosis.
Patients with liver disease secondary to d₁-antitrypsin deficiency usually present with dyspnoea (from emphysema), liver cirrhosis, cholestatic jaundice. Investigations include: serum a₁-antitrypsin levels, liver biopsy, genetic phenotyping and DNA analysis at prenatal diagnosis. Management involves quitting smoking, augmentation therapy with α₁-antitrypsin pooled from human plasma and liver transplantation is the treatment of choice in decompensated cirrhosis.
Patients with liver disease secondary to d₁-antitrypsin deficiency usually present with dyspnoea (from emphysema), liver cirrhosis, cholestatic jaundice. Investigations include: serum a₁-antitrypsin levels, liver biopsy, genetic phenotyping and DNA analysis at prenatal diagnosis. Management involves quitting smoking, augmentation therapy with α₁-antitrypsin pooled from human plasma and liver transplantation is the treatment of choice in decompensated cirrhosis.
৪৫৪.
Erythropoietin is secreted by-?
ব্যাখ্যা
Erythropoietin is produced by interstitial cells in the peritubular capillary bed of the kidneys and by perivenous hepatocytes in the liver.
৪৫৫.
Fructose as a component of semen if derived from secretion of
৪৫৬.
Not correct about Graves’ disease
ব্যাখ্যা
Graves’ disease
Definition: It is an autoimmune disease in which circulating antibodies are formed against the TSH receptor and activates the thyroid gland hyperactive, resulting in development of goiter and hypersecretion of T3 & T4
More common in women
Clinical features:
1. Goiter with bruit
2. Exophthalmos-protrusion of the eye ball (it is the hallmark of Graves' disease)
3. Retraction of upper eye lid, lid lag
4. Corneal ulceration
5. Diplopia
6. Ophthalmoplegia
7. Papilledema
8. Loss of visual acuity
9. Vitiligo
10. Digital clubbing
11. Pretibial myxedema
Definition: It is an autoimmune disease in which circulating antibodies are formed against the TSH receptor and activates the thyroid gland hyperactive, resulting in development of goiter and hypersecretion of T3 & T4
More common in women
Clinical features:
1. Goiter with bruit
2. Exophthalmos-protrusion of the eye ball (it is the hallmark of Graves' disease)
3. Retraction of upper eye lid, lid lag
4. Corneal ulceration
5. Diplopia
6. Ophthalmoplegia
7. Papilledema
8. Loss of visual acuity
9. Vitiligo
10. Digital clubbing
11. Pretibial myxedema
৪৫৭.
A 58-year-old man has made an excellent functional recovery after an anterior MI. He is entirely asymptomatic and there is no abnormality on physical examination. His blood pressure is 134/78 mmHg and he is undertaking a cardiac rehabilitation programme. Which of the following would you not recommend as part of his secondary prevention planning?
ব্যাখ্যা
There is strong clinical trial evidence for the other four classes of drugs (A-D), although it is not clear how long the duration of therapy should be in each case. This benefit is applicable to normotensive patients with 'normal' LDL levels, although what constitutes normal in this case is controversial. Targets are likely to be reduced in the near future. One clinical trial did appear to shown additional benefit for the omega-3 fatty acids this was in a population where few were receiving statins. Subsequent data have not supported their routine use.
৪৫৮.
TCA cycle is inhibited by
ব্যাখ্যা
ABC of Biochemistry 6th - P: 152
TCA cycle
Inhibition- ATP, NADH, Citratrate
Stimulation- ADP, NAD,Insulin
TCA cycle
Inhibition- ATP, NADH, Citratrate
Stimulation- ADP, NAD,Insulin
৪৫৯.
Fluid output through sweat (ml) in normal condition?
৪৬০.
Inhibitory neurotransmitter
৪৬১.
Can be measured by spirometry
ব্যাখ্যা
Volume, which cannot be measured by spirometry, is the residual volume. Capacities, which include residual volume also cannot be measured. Capacities that include residual volume are functional residual capacity and total lung capacity.
৪৬২.
Longest Part of Nephron
৪৬৩.
Thyroglobulin precursor is secreted from
৪৬৪.
RV=?
ব্যাখ্যা
Guyton 13th-501-502
৪৬৫.
Total lung capacity (ml) in women
ব্যাখ্যা
Reference: Guyton 14th; P- 495
৪৬৬.
The ultimate goal of respiration is to maintain proper concentrations of the following in the tissues except?
ব্যাখ্যা
Reference: Guyton 14th; P- 533
৪৬৭.
Complete hemolysis of RBC occur at.. .% NaCl solution
৪৬৮.
Which is not a Nonspecific laboratory findings associated with hyperthyroidism.
ব্যাখ্যা
Nonspecific laboratory findings associated with hypothyroidism.
Ø Increased serum total cholesterol and LDL-C
Ø Increased TAG (Triacyl glycerol)
Ø Hyponatremia (due to free water retention)
Ø Increased CPK (due to myopathy)
Ø Increased serum total cholesterol and LDL-C
Ø Increased TAG (Triacyl glycerol)
Ø Hyponatremia (due to free water retention)
Ø Increased CPK (due to myopathy)
৪৬৯.
Synthesis of Hb starts from
৪৭০.
How to perform an oral glucose tolerance test (OGTT)
ব্যাখ্যা
How to perform an oral glucose tolerance test (OGTT)
Preparation before the test
· Unrestricted carbohydrate diet for 3 days
· Fasted overnight for at least 8 hrs
· Rest for 30 mins
· Remain seated for the duration of the test, with no smoking
Preparation before the test
· Unrestricted carbohydrate diet for 3 days
· Fasted overnight for at least 8 hrs
· Rest for 30 mins
· Remain seated for the duration of the test, with no smoking
৪৭১.
Neuromodulator of basal ganglia
৪৭২.
Factors that shift 02-Hb dissociation curve to left
ব্যাখ্যা
Reference: Guyton 14th; P- 526
৪৭৩.
When RBC is into Hypertonic Solution following shape is found
৪৭৪.
A raised blood pH & Bicarbonate level is consistent with-?
ব্যাখ্যা
Metabolic effects of prolonged vomiting are-
-Metabolic alkalosis
-Hypovolemia leading to lactic acidosis
-Hypokalemia
-Hypochloremia
-Paradoxical aciduria
-Compensatory hypoventilation
৪৭৫.
The Permissive action of cortisol is on-
ব্যাখ্যা
The Permissive action of cortisol is on glucagon
৪৭৬.
Standard scale to measure Plasma Bicarbonate Conc
ব্যাখ্যা
ABC of Biochemistry 6th - P: 352
৪৭৭.
Maximum CO2 is transported as
ব্যাখ্যা
Reference: Guyton 14th; P- 528
৪৭৮.
Lesion of left optic nerve results in
৪৭৯.
Specific gravity of urine is low in
ব্যাখ্যা
Specific gravity of urine is the measure of dissolved solutes (particles) in urine. It is low in diabetes insipidus and high in diabetes mellitus, acute renal failure and excess medications.
৪৮০.
Autoregulation range of RBF is
৪৮১.
Which of the following does not support accommodation reflex?
ব্যাখ্যা
Explanation : Accommodation is a reflex action. When a person looks at a near object after seeing a far object, three adjustments are made in the eyeballs:
1. Convergence of the eyeballs due to contraction of the medial recti
2. Constriction of the pupil due to the contraction of constrictor pupillae of iris
3. Increase in the anterior curvature of the lens due to contraction of the ciliary muscle.
Ref : Sembulingam 6th edition (Page- 997)
1. Convergence of the eyeballs due to contraction of the medial recti
2. Constriction of the pupil due to the contraction of constrictor pupillae of iris
3. Increase in the anterior curvature of the lens due to contraction of the ciliary muscle.
Ref : Sembulingam 6th edition (Page- 997)
৪৮২.
Which acts as final common path of cerebellar cortex?
ব্যাখ্যা
Explantion : Purkinje cells are termed as ‘final common path’ of cerebellar cortex. It is because the impulses from different parts of cerebellar cortex are transmitted to other parts of brain only through Purkinje cells.
Ref : Sembulingam 6th edition (Page- 866)
Ref : Sembulingam 6th edition (Page- 866)
৪৮৩.
Which lens is used in myopia?
৪৮৪.
Port Wine birthmark is present in
৪৮৫.
Which of the following hormone is called “Life Saving Hormone”?
ব্যাখ্যা
Aldosterone is life saving hormone
৪৮৬.
Sky rise of ESR is found in
ব্যাখ্যা
Explanations:
ESR>100 is regarded as sky rise. It occurs in
• Multiple myeloma
• Giant cell arteritis
• Severe infections
• Malignancy
৪৮৭.
Which one is reduced in anaemic hypoxia?
ব্যাখ্যা
Explanation:
৪৮৮.
Lifespan of RBCs:
৪৮৯.
The most active adrenal androgen is
ব্যাখ্যা
Androgens secreted by adrenal cortex:
Dehydroepiandrosterone
Androstenedione
Testosterone
Dehydroepiandrosterone is the most active adrenal androgen.
৪৯০.
Highest Energy Expenditure During Different Types of Activity for a 70-Kilogram Person Form of Activity Calories per Hour
৪৯১.
Accessory digestive organs exclude
ব্যাখ্যা
Accessory digestive organs are those which help primary digestive organs in the process of digestion. Accessory digestive organs are:
• Teeth
• Tongue
• Salivary glands
• Exocrine part of pancreas
• Liver
• Gallbladder
৪৯২.
In smooth muscle calcium released by the smooth ER initiates contraction by binding to what protein?
ব্যাখ্যা
[Ganong 24th p-115]
৪৯৩.
What is the resting membrane potential of a nerve fibre?
ব্যাখ্যা
Ref : Sembulingam 6th edition (Table- 136.1)
Explanation : RMP of a nerve fibre is -70 mV, Firing level of a nerve fibre is -55 mv, End of depolarization of the nerve fibre is at +35 mV.
৪৯৪.
FRC in women
৪৯৫.
Severe Hypotonicity of ECF compared to ICF may lead to-?
ব্যাখ্যা
Reference-Davidson/23rd/P-435/Fig-16.6
৪৯৬.
Regarding inhibin which is not suited
৪৯৭.
Which of the followings is false regarding accommodation reflex?
ব্যাখ্যা
Explanation : In addition to increase in anterior curvature of the lens, two more adjustments are made in the eyeball during accommodation for near vision.
1. Convergence of both eyeballs: It is necessary to bring the retinal images on to the corresponding points
2. Constriction of pupil: It is necessary to:
i. Increase the visual acuity by reducing lateral chromatic and spherical aberrations
ii. Reduce the quantity of light entering eye
iii. Increase the depth of focus through more central part of lens as its convexity is increased.
Ref : Sembulingam 6th edition (Page- 996)
1. Convergence of both eyeballs: It is necessary to bring the retinal images on to the corresponding points
2. Constriction of pupil: It is necessary to:
i. Increase the visual acuity by reducing lateral chromatic and spherical aberrations
ii. Reduce the quantity of light entering eye
iii. Increase the depth of focus through more central part of lens as its convexity is increased.
Ref : Sembulingam 6th edition (Page- 996)
৪৯৮.
Co factor of carboxy peptidase
৪৯৯.
Calculate HCO3 space in a 70 kg man when HCO3 conc 24 mmol/l
ব্যাখ্যা
HCO3 space= (0.36+ 2.44/HCO3 conc) * BW
ABC of Biochemistry 6th - P:352
ABC of Biochemistry 6th - P:352
৫০০.
Which is not a protopathic sensation?
ব্যাখ্যা
Explanation : Pressure sensation,pain sensation,temparature sensation with wider range (below 25 degree celcius & above 40 degree celcius) are protopathic sensation. Epicritic sensations are: i. Fine touch or tactile sensation, ii. Tactile localization, iii. Tactile discrimination, iv. Temperature sensation with finer range between 25°C and 40°C.Visceral,vibratory & kinesthetic sensations are deep sensations.
Ref : Sembulingam 6th edition (Figure- 144.1)
Ref : Sembulingam 6th edition (Figure- 144.1)