Blood pressure & its regulation MCQ 22+

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• Amplitude of the pulse pressure in the aorta is directly proportional to
  ক

  Stroke volume

  খ

  Total peripheral resistance

  গ

  Aortic compliance

  ঘ

  Velocity of blood flow

  ঙ

  Elasticity of vessel wall [Ref: Rodde/6th/Q-94/P-41]
• Amplitude of pulse pressure in the aorta is directly proportional to
  ক

  Stroke volume

  খ

  Aortic compliance

  গ

  Elasticity of vessel wall [Ref: Rodde/6th/Q-94/P-41]

  ঘ

  Velocity of blood flow

  ঙ

  Total peripheral resistance
• The pulse pressure in the large arteries is directly proportional to
  ক

  Stroke volume

  খ

  Heart rate

  গ

  Total peripheral resistance

  ঘ

  Compliance of arterial wall

  ঙ

  Elasticity of vessel wall
• Pulse pressure increases in
  ক

  Arteriosclerosis

  খ

  Old age

  গ

  Patent ductus arteriosus

  ঘ

  Aortic stenosis

  ঙ

  Hypothyroidism
• Pulse pressure is directly proportional to
  ক

  Stroke volume

  খ

  Radius of blood vessels

  গ

  Length of blood vessels

  ঘ

  Elasticity of vessel wall [Ref: Rodde/6th/Q-94/P-41]

  ঙ

  Viscosity of blood
• Amplitude of pulse pressure is directly proportional to
  ক

  Stroke volume

  খ

  Compliance of the vessels

  গ

  Total peripheral resistance

  ঘ

  Diameter of blood vessel

  ঙ

  Elasticity of vessel wall
• When stretch receptors of atria are stretched there is
  ক

  Decrease of ADH secretion

  খ

  Dilatation of afferent arterioles

  গ

  Secretion of ANP

  ঘ

  Decrease in heart rate

  ঙ

  Decrease secretion of cortisol
• The volume receptors of circulatory system
  ক

  Are required for effective regulation of blood volume

  খ

  Influence renal function

  গ

  Influence secretion of ADH

  ঘ

  Influence secretion of atrial natriuretic peptide

  ঙ

  Are confined to right atrium
• Volume overload indirectly act as pressure controller by
  ক

  Increasing secretion of atrial natriuretic peptide

  খ

  Increasing glomerular filtration rate

  গ

  Inhibiting release of renin

  ঘ

  Increasing secretion of ADH

  ঙ

  Decreasing tubular reabsorption of glucose
• Chemoreceptors in the arterial system
  ক

  Have a higher rate of oxygen consumption per gram than brain tissue

  খ

  Respond to changes in oxygen tension

  গ

  not content

  ঘ

  Respond to changes in pH

  ঙ

  Conduct afferent information via the glossopharyngeal and the vagus nerves

  চ

  Are found in the carotid sinus
• Stretching of the atrial stretch receptors
  ক

  Increase heart rate

  খ

  Increase diameter of afferent arteriole of kidney

  গ

  Increase atrial natriuretic peptide secretion

  ঘ

  Increase ADH secretion

  ঙ

  Increased aldosterone secretion
• A sudden increase in right atrial volume will result in an increase in
  ক

  Heart rate

  খ

  ANP secretion

  গ

  Cardiac output

  ঘ

  Diameter of afferent arterioles of kidney

  ঙ

  ADH secretion
• Mean blood pressure
  ক

  Determines perfusion pressure

  খ

  Controls tissue blood flow

  গ

  Depends on cardiac output

  ঘ

  Is regulated directly by vasomotor tone

  ঙ

  Is affected mostly by systolic blood pressure
• Increase in right atrial pressure and volume lead to include
  ক

  An increase in atrial natriuretic peptide secretion

  খ

  An increase in heart rate

  গ

  Dilatation of afferent arteriole of kidney

  ঘ

  An increase in renin secretion

  ঙ

  An increase in ADH secretion
• An increase in systemic arterial BP leads to
  ক

  A decrease in stroke volume

  খ

  An increase in ESV

  গ

  An increase in wall tension in the left ventricular muscle

  ঘ

  An increase in cardiac output

  ঙ

  An increase in the velocity at which blood is ejected from the left ventricle
• A sudden increase in right atrial volume will cause an immediate increase in
  ক

  Cardiac output

  খ

  Heart rate

  গ

  Systemic arterial BP

  ঘ

  Atrial natriuretic peptide secretion

  ঙ

  ADH secretion
• Increased pressure within the carotid sinus decreases
  ক

  Sympathetic tone

  খ

  Heart rate

  গ

  Cardiac contractility

  ঘ

  Pulmonary ventilation

  ঙ

  Diameter of blood vessel
• Increased pressure within the carotid sinus results in
  ক

  Reflex bradycardia

  খ

  Decrease in sympathetic tone

  গ

  Decrease in cardiac contractility

  ঘ

  Reflex hyperpnea

  ঙ

  Decrease in diameter of blood vessels
• Blood pressure is
  ক

  Maintained normally by baroreceptor reflex

  খ

  Increased when aldosterone secretion is more

  গ

  Measured by auscultatory method

  ঘ

  The product of cardiac output and heart rate

  ঙ

  Decreased when mean circulatory filling pressure is more
• The net effects of stimulation of baroreceptors are
  ক

  Venodilation of peripheral circulatory system

  খ

  To decrease heart rate

  গ

  To decrease arterial blood pressure

  ঘ

  Venodilation of pulmonary vessels

  ঙ

  To increase force of contraction of cardiac muscle
• The pulse pressure is directly proportional to
  ক

  Stroke volume

  খ

  Heart rate

  গ

  Compliance of the arterial blood vessels

  ঘ

  Elasticity of the arterial wall

  ঙ

  Diameter of the blood vessels