Correct Answer - a. 2,1
b. Mesodermal,Pericardium
c. 3,Tricuspid
d. Thicker.
e. 72, Pacemaker
f. 30%
g. Joint diastole
h. P
i. Coronary
j. Decrease, Cardiac output
As ‘traditional’ bonds of patronage between labourers or tenants and landlords broke down, and as the seasonal demand for agricultural labour increased in prosperous Green Revolution regions such as the...
The mammalian cardiac muscles are modified and are capable of generating an impulse on their own. Hence, the mammalian heart known as a myogenic heart.
Mechanism of blood circulation:
1. Blood (haemolymph) circulates between sinuses and heart due to contraction and relaxation of heart and alary muscles.
2. The heart contracts (systole) and relaxes (diastole) alternatively. After...