The Circulatory System

Red blood cells transport __________ around our body.

• oxygen

• plasma

• bones

• cardiac muscles

Tags

NGSS.MS-LS1-2

Which part of blood allows blood to clot? (create scabs)

• red blood cell

• white blood cell

• plasma

• platelet

These are small, spherical enucleated and biconcave cells that carry oxygen.

• erythrocytes

• leucocytes

• thrombocytes

• plasma

Tags

NGSS.MS-LS1-2

The largest vein is called ______.

• vena cava

• aorta

• atrium

• ventricle

The largest artery is called ______.

• aorta

• vena cava

• atrium

• ventricle

A blood vessel that brings blood to the other parts of the body.

• artery

• atrium

• ventricle

• vein

It pumps blood throughout the body by way of involuntary contractions of the cardiac muscle.

• heart

• lungs

• blood

• blood vessel

Tags

NGSS.MS-LS1-3

These keep the blood moving, efficiently and smoothly, and in the right direction.

• valve

• septum

• heart muscle

• blood

These are valves that are located between the atrium and the ventricle.

• atrioventricular valve

• semilunar valve

• pulmonary valve

• aortic valve

The dividing wall between the right and left side of the heart.

• septum

• valve

• heart muscle

• blood