Body Fluid & Circulation - 11-11-23

Incomplete double circulation is found in which of the following animals?

• (a) Birds

• (b) Mammals

• (c) Birds and Mammals

• (d) Amphibians and Reptiles

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 lifted to the left

• (c) Human heart has the size of a clenched fist.

• (d) Double wall membranous bag (pericardium) with pericardial fluid protects heart

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

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

Tricuspid valve is present between the –

• (a) Two atria

• (b) Two ventricles

• (c) Left atrium and left ventricle

• (d) Right atrium and right ventricle

Chordae tendinae are found in –

• (a) Joints

• (b) Atria of heart

• (c) Ventricles of heart

• (d) Ventricles of brain

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 is to pump blood

• (d) None

Which of the following has thickest wall?

• (a) Left auricle

• (b) Left ventricle

• (c) Right auricle

• (d) Right ventricle

Match the Columns –

• (a) A - q, B - s, C - r, D - p

• (b) A - s, B - p, C - q, D - r

• (c) A - s, B - r, C - p, D - q

• (d) A - s, B - p, C - r, D - q

Which of the following is expected if husband is Rh+ and wife is Rh–?

• (a) No problem with 1st pregnancy

• (b) Problem would be expected with future pregnancies

• (c) Both

• (d) No problem could be expected in any pregnancy