Systemic blood returns to the heart by which route;
to the right atrium via the vena cava
to the right ventricle via the vena cava
to the right atrium via the pulmonary arteries
to the right ventricle via the pulmonary arteries
. Blood is pumped to the lungs via;
.the pulmonary veins
. the aorta
.the pulmonary arteries
. the vena cava
The muscle layer of the heart is known as;
endocardium
pericardium
myocardium
septum
The thin fibrous sac surrounding the heart is known as;
.endocardium
.pericardium
.myocardium
.septum
The inner lining of the heart is known as;
The main haemodynamic pump of the body is;
the septum and the right ventricle
the septum and the left ventricle
the right and left atria
the right and left ventricles
Contraction of the heart muscle is called;
Diastole
systole
asystole
venous return
. Relaxation of the heart muscle is called;
. diastole
. systole
.asystole .
. Heart valves permit blood flow in;
. two directions, backwards and forwards
. one direction, backwards
.one direction, forwards
. stop blood flow in any direction
Semi lunar valves are situated between;
. ventricle and artery
. artery and vein
. right atria and right ventricle
. left atria and left ventricle
