Body Fluids and Circulation Mock Test-7

Question No:1

The amount of blood to be pumped out by each ventricle/minute is

[A] Stroke volume
[B] Cardiac output

Question No:2

During cardiac cycle each ventricle pumps out about 70 ml of blood which is called

[A] Stroke volume
[B] Cardiac output
[C] Tidal volume
[D] Residual volume

Question No:3

Cardiac output is

[A] Stroke volume (SV) x Heart rate (HR) = 5L/m
[B] SVxHR = 500ml
[C] SVxHR = 72ml/m
[D] SVxHR = 70ml/m

Question No:4

Which of the following statement is incorrect?

[A] Cardiac output of an athlet is much higher than that of an ordinary man
[B] In each minute a single cardiac cycle is performed
[C] During each cardiac cycle two prominent sounds are produced
[D] Cardiac cycle includes atrial systole, ventricular systole and joint diastole

Question No:5

Identify the correct sequence of events in a cardiac cycle:

[A] Diastole, atrial systole, ventricular diastole
[B] Atrial systole, ventricular diastole, ventricular systole
[C] Atrial systole, ventricular systole, joint diastole
[D] Ventricular diastole, diastole, ventricular systole, atrial systole

Question No:6

First cardiac sound (lub) is associated with

[A] closure of tricuspid and bicuspid valves
[B] opening of tricuspid valves
[C] closure of semi lunar valves
[D] opening of semi lunar valves

Question No:7

Which of the following statement is wrong for second cardiac sound?

[A] It is heard as dup
[B] It is produced due to the closure of semi lunar valves
[C] It is clinically significant
[D] It is clinically non significant

Question No:8

Which of the following is correct about human heart?

[A] The volume of both atria > the volume of both ventricles
[B] The volume of both ventricle > the volume of both atria
[C] The volume of both atria = the volume of both ventricles
[D] Ventricles are upper chambers and atria are lower chambers in our heart

Question No:9

Which of the following blood vessels possess semi lunar valves?

[A] Vena cava and aorta
[B] Aorta and pulmonary artery
[C] Pulmonary artery and pulmonary vein
[D] Pulmonary vein and vena cava

Question No:10

The heartbeat of a person increases at the time of an interview due to the secretion of

[A] Renin
[B] Adrenaline

Question No:11

Which of the following set is correct?

[A] Sebum — Analgesic
[B] Vitamin – Nicotine
[C] Corpus callosum – Graafian follicle
[D] Bundle of His – Purkinje fibres

Question No:12

Cardiac centre lies in

[A] Medulla oblongara
[B] Pons
[C] Cerebrum
[D] Epithalamus

Question No:13

Cardiac centre can moderate the cardiac functions through

[A] somatic neural system
[B] parasympathetic nervous system only
[C] autonomic nervous system (ANS)
[D] sympathetic nervous system only

Question No:14

Neural signal through the sympathetic nervous (part of ANS) increase cardiac output because of

[A] increasing the rate of heat beat
[B] increasing the strength of ventricular contraction
[C] both (a) and (b)
[D] increasing the stimulation of vagus nerve

Question No:15

Parasympathetic neural signal decreases cardiac output by

[A] decreasing the rate of heartbeat
[B] decreasing the speed conduction of action potential
[C] both
[D] increasing adrenal medulla hormones secretion