Question No:1

Incomplete double circulation is found in

[A] Amphibia
[B] Reptiles
[C] Fishes
[D] Both (a) and(b)



Question No:2

Double circulation is found in

[A] birds
[B] b) crocodile
[C] c) mammals
[D] all



Question No:3

Heart is derived from

[A] ectoderm
[B] endoderm
[C] mesoderm
[D] all



Question No:4

Which of the following statements is not true?

[A] Heart is ectodermal in origin
[B] In human beings heart is situated in the thoracic cavity, in between the two lungs slightly tilted to the left
[C] Human heart has the size of a clenched fist
[D] Heart protected by double wall membranous bag (pericardium) with pericardial fluid



Question No:5

Select the total number of thick structure out of following:
(A) Interatrial septum (muscular wall)
(B) Interventricular septum
(C) Atrioventricular septum (fibrous)
(D) Walls of ventricles

[A] 1
[B] 2
[C] 3
[D] 4



Question No:6

How many papillary muscles are present in right ventricle?

[A] 1
[B] 2
[C] 3
[D] 4



Question No:7

Apex of heart is

[A] upper and tilted toward left
[B] lower and tilted towards left
[C] upper and tilted towards right
[D] lower and tilted towards right



Question No:8

Which of the following organs has papillary muscles?

[A] Ciliary body
[B] Legs
[C] Wall of heart
[D] Mammary glands



Question No:9

Bundle of HIS is consist of
(A) Right bundle branch
(B) Left bundle branch
(C) Purkinje fibres
(D) AV bundle

[A] A, B, C only
[B] A, B, C, D
[C] B, C, D only
[D] C, D only



Question No:10

Bicuspid valve/mitral valve is found between

[A] Left atrium and left ventricle
[B] Right atrium and right ventricle
[C] Right atrium and left ventricle
[D] Left atrium and right ventricle



Question No:11

Tricuspid valve is present between the

[A] two atria
[B] two ventricles
[C] left atrium and left ventricle
[D] right atrium and right ventricle



Question No:12

Chordae tendinae are found in

[A] joints
[B] atria of heart
[C] ventricles of heart
[D] ventricles of brain



Question No:13

Ventricles are thick-walled as compared to atrium because

[A] it is to receive blood from atria
[B] it is present on the posterior side
[C] it has to pump blood
[D] none



Question No:14

Papillary muscles are located in

[A] heart ventricles of human
[B] dermis of mammalian skin
[C] orbits of vertebrate eyes
[D] pylorus of vertebrate stomach



Question No:15

Purkinje fibres are found in

[A] brain
[B] kidneys
[C] skin
[D] heart