human circulatory system

Blood is poured into the right atrium through

• vena cava

• Pulmonary vein

• aorta

• Pulmonary artery

Left atrium receives oxygenated blood through

• Coronary artery

• Aorta

• Pulmonary artery

• Pulmonary vein

In human beings, the duration of cardiac cycle is

• 0.08 seconds

• 0.5 seconds

• 0.8 seconds

• 8.0 seconds

Which of the following carries deoxygenated blood?

• pulmonary vein

• pulmonary artery

• aorta

• coronary artery

The heart has a left side and a right side that are separated by a__________

• valve

• thick wall

• ventricle

• vein

The right atrium receives____________ blood from the ________.

• oxygenated, body

• deoxygenated, body

• oxygenated, lungs

• deoxygenated, lungs

__________are structures that close to prevent blood from going backwards.

• ventricles

• valves

• veins

• arteries

in the heart, Each side has an upper chamber ( Called _____

and a lower chamber ( called_______).

• atrium, ventricle

• artery, vein

• atrium, vein

• ventricle, atrium

________

is the blood vessel that carries blood away from the heart.

• atrium

• vein

• artery

• valve

__________

is a tiny blood vessel that allows an exchange between the blood and cells in other tissues.

• artery

• atrium

• capillary

• vein