PrepBharat

1. Heart is derived from
a) Ectoderm
b) Endoderm
c) Mesoderm
d) All of these

View Answer

2. In fishes, the blood circulation is represented as

The given flow of blood indicates that it is a
a) Double circulation
b) Single circulation
c) Incomplete single circulation
d) Incomplete double circulation

View Answer

3. Which of the following statements is not true?
a) Heart is ectodermal in origin.
b) In human beings the 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 is protected by a double walled membranous bag (pericardium) with pericardial fluid.

View Answer

4.Select the total number of thick structure out of the 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

View Answer

5. How many papillary muscles are present in right ventricle?
a) 1
b) 2
c) 3
d) 4

View Answer

6.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

View Answer

7. Which of the following organs has papillary muscles?
a) Ciliary body
b) Legs
c) Wall of heart
d) Mammary glands

View Answer

8. The full form of label ‘A’ in the diagram is

a) Sin–Atrial–Node
b) Sinu–Atrial–Node
c) Sino–Atrial–Node
d) Sinus–Atrial–Node

View Answer

9. Bundle of HIS consists of
(A) Right bundle branch
(B) Left bundle branch
(C) Purkinje fibres
(D) AV bundle
a) A, B and C only
b) A, B, C, D
c) B, C and D only
d) C and D only

View Answer

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

View Answer