The loosefitting sac around the heart is the Select one a fi

The loose-fitting sac around the heart is the

Select one:

a. fibrous pericardium.

b. visceral pericardium.

c. epicardium.

d. endocardium.

Why does the left ventricle have a thicker myocardial wall?

Select one:

a. It has to pump blood to the lungs.

b. It has to pump blood to the body.

c. It has to pump blood to the left atrium.

d. It has to pump blood to the liver.

Solution

The loose fitting sac around the heart is known as pericardium. It helps to bear the shock and protect heart. The correct option for first question is visceral pericardium ie option b.

The left ventricle has a thicker wall because it has to pump blood to the body. The correct option is b