WORKING OF THE HEART

CHAMBERS

1

Name the chamber where the blood enters from the Right Atrium ?

Right Ventricle.

1

Name the chamber which receives oxygenated blood from the lungs ?

Left Atrium.

1

Name the chamber which pumps oxygenated blood to aorta ?

Left Ventricle.

1

How many chambers are there for the heart ?

Choose the correct option.

A)3

B) 6

C) 8

D) 4

D) 4

1

Name the chamber which collects the impure blood from the body parts ?

Right Atrium.

BLOOD VESSELS

1

Choose the correct statement :

1)Pulmonary artery carries the oxygenated blood.

2)Pulmonary vein carries the oxygenated blood.

Statement (2)

1

The major artery that carries blood from the heart to the rest of the body is -------

Aorta.

VALVES

1

Choose the right answer and make suitable pair

1)Tricuspid valve is seen between

2)Semilunar valves are seen between

3)Bicuspid valve is seen between

A)Ventricles and Arteries

B)L.Atrium and L.Ventricle

C) R.Atrium and R.Ventricle

1-C

2-A

3-B

CARDIAC CYCLE

1

The contraction of heart's upper chambers to push the blood into the ventricles and this process is known as ------

Atrial systole.

1

The contraction of lower chambers of heart to pump blood to lungs and body .This process is known as ------

Ventricular systole.

1

Returning of heart chambers to the normal state after the systolic contractions is known by the name------

Joint diastole.

1

Time required for one cardiac cycle  is----

0.8 sec.

1

One cardiac cycle is known as ------

Heart beat.