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Blood Pressure

মোট প্রশ্ন১৪এই পাতা১৪প্রতি পাতা১০০
প্রশ্ন দেখুনঅনুশীলন
ঘনত্ব
উত্তর
উত্তরিতবর্তমানপুনরায় দেখুনঅসম্পূর্ণ

Blood Pressure

PrepBank · পাতা ১ / ১ · ১–১৪ / ১৪

১.
Rapidly acting BP regulating mechanisms excludes
  1. ক
    Baroreceptor mechanism
  2. খ
    Chemoreceptor mechanism
  3. গ
    Renin angiotensin mechanism
  4. ঘ
    CNS ischemic mechanism
ব্যাখ্যা

Explanation:
Rapidly acting regulating mechanisms (acute nervous reflexes) (acts within seconds to minutes)
• Baroreceptor mechanism
• Chemoreceptor mechanism
• CNS ischemic mechanism

২.
Vasoconstrictor agent:
  1. ক
    Serotonin
  2. খ
    Epinephrine in liver
  3. গ
    Prostaglandin
  4. ঘ
    NO
৩.
Total peripheral resistance is inversely proportional to
  1. ক
    ক) Velocity of blood flow
  2. খ
    খ) Viscosity of blood
  3. গ
    গ) Cross sectional area of blood vessels
  4. ঘ
    ঘ) Length of blood vessels
ব্যাখ্যা

★Total peripheral resistance
Directly proportional to
-Velocity
-Viscosity
-Length of blood vessels
Inversely proportional to
-Lumen of blood vessels
-4th power of radius
-Elasticity of arterial wall

৪.
The pulse pressure in the large arteries is directly proportional to
  1. ক
    ক) Stroke volume
  2. খ
    খ) Heart rate
  3. গ
    গ) Total peripheral resistance
  4. ঘ
    ঘ) Compliance of arterial wall
ব্যাখ্যা

Pulse pressure (PP)
-PP Directly proportional to SV
-PP inversely proportional to compliance/Arterial elasticity

৫.
Most potent vasodilator
  1. ক
    CO2
  2. খ
    H+
  3. গ
    K+
  4. ঘ
    O2
ব্যাখ্যা
কোন ব্যাখ্যা যোগ হয় নি।
৬.
Which are the major sites of resistance of circulation?
  1. ক
    ক) Arteries
  2. খ
    খ) Arterioles
  3. গ
    গ) Capillaries
  4. ঘ
    ঘ) Veins
ব্যাখ্যা
Explanation:
Arterioles are the major site of the resistance to blood flow. So, arterioles are the stop clocks of the circulation.
৭.
Pulse pressure does not depend on
  1. ক
    ক) Age
  2. খ
    খ) Sex
  3. গ
    গ) Stroke volume
  4. ঘ
    ঘ) Arterial elastic constant
ব্যাখ্যা

Explanation:
Pulse pressure
Is the difference between systolic and diastolic pressure. Normal pulse pressure is 30 - 60 mm Hg (average 50 mm Hg).
Pulse pressure depends on three factors:
• Age
• Stroke volume
• Arterial elastic constant

৮.
BP on lower limb is measured over
  1. ক
    Anterior tibial artery
  2. খ
    Posterior tibial artery
  3. গ
    Popliteal artery
  4. ঘ
    Femoral artery
ব্যাখ্যা

Explanation:
Site of blood pressure measurement
• Arms (over brachial artery)
• Thighs (over popliteal artery)

৯.
Increased pressure within the carotid sinus results in -
  1. ক
    ক) Reflex bradycardia
  2. খ
    খ) Reflex hyperpnea
  3. গ
    গ) Increase in sympathetic tone
  4. ঘ
    ঘ) Decrease in diameter of blood vessels
ব্যাখ্যা

Increased pressure within carotid sinus causes-
-Decreased Heart rate
-Decreased sympathetic tone/Vasomotor tone
-Increased parasympathetic discharge
-Decreased myocardial contractility
-Causes vasodilation and venodilation
-Decreased TPR

১০.
Following which is most important control system under negative feedback mechanism-?
  1. ক
    ক) Blood clotting
  2. খ
    খ) LH surge.
  3. গ
    গ) Regulation of water balance
  4. ঘ
    ঘ) Blood pressure control system
ব্যাখ্যা
Blood pressure regulation is the most important Which is regulated by negative feedback mechanism.
১১.
A 55-year-old man comes to his primary care clinician complaining of erectile dysfunction. He is given a prescription for Viagra, and on follow-up, reports that his ability to sustain an erection has been improved markedly by this treatment. The action of which of the following vasoactive mediators would primarily be increased in this patient?
  1. ক
    Histamine
  2. খ
    Endothelin-1
  3. গ
    Prostacyclin
  4. ঘ
    NO
ব্যাখ্যা
কোন ব্যাখ্যা যোগ হয় নি।
১২.
Stimulation of baroreceptor
  1. ক
    Increase in heart rate
  2. খ
    Decrease in force of contraction
  3. গ
    Increase in arterial blood pressure
  4. ঘ
    Venodilation of pulmonary vessels
১৩.
Inhibitor of Endothelin 1
  1. ক
    Angiotensin 2
  2. খ
    GF
  3. গ
    NO
  4. ঘ
    Hyooxia
১৪.
Amplitude of pulse pressure in the aorta is directly proportional to
  1. ক
    Total peripheral resistance
  2. খ
    Aortic compliance
  3. গ
    Stroke volume
  4. ঘ
    Velocity of blood flow
ব্যাখ্যা
Amplitude of pulse pressure in the corta is directly to-

  Stroke volume
  velocity of blood flow
  Elasticity of vessel
  Raised in old age