PrepBank · বিষয়ভিত্তিক প্রশ্ন
স্পেশাল বিসিএস (স্বাস্থ্য)
স্পেশাল বিসিএস (স্বাস্থ্য)
PrepBank · পাতা ১৩ / ৪৩ · ১,২০১–১,৩০০ / ৪,২৮৫
ব্যাখ্যা
-Basal portion is thin
-Nucleus is present towards the base
-Is an unicellular exocrine gland
ব্যাখ্যা
Idiopathic
Herpes zoster infection
Brainstem infraction
Tumor in the cerebello pontine angle
Acoustic neuroma
Parotid tumor
Fracture of petrous part of temporal bone
ব্যাখ্যা
ব্যাখ্যা
In kala-azar
• Symptoms begin with intermittent fever, weakness, and weight loss.
• Massive enlargement of the spleen is characteristic.
• Hyperpigmentation of the skin is seen in light-skinned patients (kala-azar means black sickness).
ব্যাখ্যা
ব্যাখ্যা
ব্যাখ্যা
Dissemination of cancers may occur through one of three pathways:
• Direct seeding of body cavities or surfaces,
• Lymphatic spread- mainly carcinoma
• Hematogenous spread- mainly Sarcomas
ব্যাখ্যা
ব্যাখ্যা
ABC of Biochemistry 6th - P: 182
ব্যাখ্যা
The CNS is completely enclosed by three connective tissue layers called meninges:
(1) the tough external dura mater;
(2) the middle arachnoid layer; and
(3) the delicate pia mater that directly contacts neural tissue.
ব্যাখ্যা
ব্যাখ্যা
ব্যাখ্যা
ব্যাখ্যা
ব্যাখ্যা
Cortical branches supply entire lateral surface of the hemisphere except the narrow strip supplied by ant cerebral artery. the occipital pole and inferolateral surface of the hemisphere is supplied by the posterior cerebral artery.
Middle cerebral artery supplies all motor area except the leg area. central branches enter the anterior perforated substance and supply the lentiform and caudate nuclei and the internal capsule.
ব্যাখ্যা
ব্যাখ্যা
Explanations:
Developing fetus- mesoderm of yolk sac
Early fetal life- liver, spleen, thymus
Late fetal life- red bone marrow
ব্যাখ্যা
ব্যাখ্যা
ব্যাখ্যা
ব্যাখ্যা
ব্যাখ্যা
ব্যাখ্যা
ব্যাখ্যা
Clinical features of type 2 respiratory failure :
Hypoxia
Hypercapnia
Airway obsteuction
Cor pulmonale
Signs of precipitating factors
ব্যাখ্যা
ব্যাখ্যা
Explanations:
Haeme containing proteins:
• Haemoglobin
• Myoglobin
• Cytochrome C
ব্যাখ্যা
ব্যাখ্যা
ব্যাখ্যা
• Pelvic diaphragm: formed by levator ani muscles. The puborectalis sling of this diaphragm surrounds the anorectal junction and maintain the anorectal flexure. (main support)
• Fascia of Waldeyer: Contain Superior Rectal Vessels and lymphatics
• Lateral ligaments of Rectum: Contain Middle Rectal Vessels and lymphatics
• Rectovesical fascia of Denonvilliers
• Pelvic peritoneum
• Perineal body & its muscles
ব্যাখ্যা
Its fibres are finer than other myocardial fibres and are completely cross striated
Parts:
1. Sinoatrial node (SA node)
2. Atrioventricular node (AV node)
3. Atrioventricular bundle (of His)
4. Right and left branches of AV bundle
5. Sub endocardial Purkinje fibres
Blood supply:
Whole of conducting system except left branch of AV bundle is supplied by right coronary artery. In 40% cases, left coronary artery supplies SA node.
ব্যাখ্যা
ব্যাখ্যা
ব্যাখ্যা
Avuscular necrosis seen in :
Head of femur
Talas
Scaphoid
Radiation therapy
Sickle cell crisis
Trauma
Tumor
ব্যাখ্যা
The dominant cause of IHD syndrome is insufficient coronary perfusion relative to myocardial demand, due to chronic, progressive atherosclerotic narrowing of the epicardial coronary arteries
ব্যাখ্যা
ব্যাখ্যা
History of fever for more than 2 weeks
Residing/ traveling in endemic areas
Any one of the following symptoms and signs:
1.Splenomegaly
2.Weight loss
3.Anemia
And ‘rk39’ test (+) positive.
ব্যাখ্যা
ব্যাখ্যা
ব্যাখ্যা
RB gene is called Governor of the cell cycle.
It inhibit cell cycle in G1-S phase.
ব্যাখ্যা
1.Present in muscle-tendon junction
2. Sensory Supply-Only Ib type
3. Alpha motor only
4. Regulates musle tension
5. Reflexes are inhibitory.
ব্যাখ্যা
ব্যাখ্যা
ব্যাখ্যা
ব্যাখ্যা
ব্যাখ্যা
ব্যাখ্যা
P. vivax and P. ovale preferentially invade younger cells, and P. malariae normoblasts
ব্যাখ্যা
♣ Most diseases of the breast arise from the terminal ductal lobular unit (TDLU)
♣ About 50% of the ductolobular tissue is located in the upper outer quadrant and about 20% in the central region
ব্যাখ্যা
Explanations:
Stages of hemostasis
When a blood vessel is injured, the injury initiates a series of reactions, resulting in hemostasis. It occurs in three stages
1. Vasoconstriction
2. Platelet plug formation
3. Coagulation of blood.
ব্যাখ্যা
ব্যাখ্যা
• Bowman’s capsule
• Glomerulus
• PCT
• Loop of Henle
• DCT
ব্যাখ্যা
1.Production, differentiation and maturation and maturation of T-lymphocytes
2.Secretion of thymopoietin by epithelioreticular cells. Thymopoietin stimulates T cell production.
3.Thymus is essential for development of immunity in early life.
4. Another main function of the thymus is induction of central tolerance, which along with regulatory T cells prevents autoimmunity
ব্যাখ্যা
★Lysosomal enzymes are-
-Ribonuclease
-Deoxyribonuclease
-Phosphate
-Glycosidases
-Arylsylfatases
-Collagenase
-Cathepsins
-Phospholipase
ব্যাখ্যা
ব্যাখ্যা
ব্যাখ্যা
The first effect of leukemia is metastatic growth of leukemic cells in abnormal areas of the body. Leukemic cells from the bone marrow may reproduce so much that they invade the surrounding bone, causing pain and, eventually, a tendency for bones to fracture easily.
Almost all leukemias eventually spread to the spleen, lymph nodes, liver, and other vascular regions, regardless of whether the leukemia originated in the bone marrow or lymph nodes.
Common effects in leukemia are the development of infection, severe anemia, and a bleeding tendency caused by thrombocytopenia (lack of platelets). These effects result mainly from displacement of the normal bone marrow and lymphoid cells by the nonfunctional leukemic cells.
Finally, an important effect of leukemia on the body is excessive use of metabolic substrates by the growing cancerous cells. The leukemic tissues reproduce new cells so rapidly that tremendous demands are made on the body reserves for foodstuffs, specific amino acids, and vitamins. Consequently, the energy of the patient is greatly depleted, and excessive utilization of amino acids by leukemic cells causes especially rapid deterioration of the normal protein tissues of the body. Thus, while the leukemic tissues grow, other tissues become debilitated. After metabolic starvation has continued long enough, this factor alone is sufficient to cause death.
Bibliography
David BA, Kubes P: Exploring the complex role of chemokines and chemoattractants in vivo on leukocyte dynamics Immunol Re
ব্যাখ্যা
*** Remaining part of the epithelial lining of the bladder develops from vesicourethral canal of the cloaca.