Question: Which of the following increases turbulence in blood flow ?

• 1. Reynolds number < 2000
• 2. Decrease in velocity of blood
• 3. Decrease in density of blood
• 4. Increase in diameter of blood vessel

Question: Glomerular capillary pressure differ from other capillaries of body in______________?

• 1. Higher filtration pressure
• 2. Lower filtration pressure
• 3. Both of the above
• 4. None

Question: In determining blood pressure by auscultatory method_____________?

• 1. The loudest sound is the diastolic pressure
• 2. Systolic pressure estimation tends to be lower than those make by palpatory method
• 3. The first sound heard is the systolic pressure
• 4. The sounds that are heard are generated in heart

Question: The following factors increase the cardiac output except______________?

• 1. Preload
• 2. After load
• 3. Heart rate
• 4. Myocardial contractility

Question: SA node acts as a pacemaker of the heart because of the fact that it_________________?

• 1. is capable of generating impulses
• 2. Has rich sympathetic innervation
• 3. Has poor cholinergic innervation
• 4. Generates impulses at the highest rate

Question: Increase in carotid sinus pressure produces__________________?

• 1. Reflex hyperpnea
• 2. Reflex Hypercapnia
• 3. Reflex tachycardia
• 4. Reflex Hypercapnia

Question: The effects of Adrenaline on heart are all except__________________?

• 1. Increases heart rate
• 2. Decreases myocardial irritability
• 3. Increases force of contraction
• 4. Increases oxygen uptake by heart

Question: First heart sound occurs during the period of________________?

• 1. Isotonic relaxation
• 2. Isovolumetric relaxation
• 3. Isovolumetric contraction
• 4. Isotonic contraction

Question: Cardiac output in L/min divided by heart rate equals_______________?

• 1. Cardiac efficiency
• 2. Cardiac index
• 3. Mean stroke volume
• 4. Mean arterial pressure

Question: Under resting condition the cardiac output is _______ L/ min ?

• 1. 2.5
• 2. 4.25
• 3. 5.25
• 4. 9.5