Blood, Heart, and Circulation

The smallest blood vessels in humans are called

• xylem

• arterioles

• capillaries

• veins

The main function of the circulatory system is

• to give the body structure and support

• transport blood, nutrients, and gases throughout the body

• excrete waste

• to transport messages from the body to the brain

What is the function of the heart?

• to pump blood around the body

• to allow blood to flow through it

• to remove oxygen from the blood

• to breath

Arteries:

• carry oxygenated blood to the heart

• carry deoxygenated blood to the heart

• carry oxygenated blood away from the heart

• carry deoxygenated blood away from the heart

Veins:

• carry deoxygenated blood to the heart

• carry oxygenated blood to the heart

• carry deoxygenated blood away from the heart

• carry oxygenated blood away from the heart

The function of all valves is to

• create pressure

• prevent backflow

• pump blood

• carry blood to the heart

My heart is a ______ that pumps blood through the body.

• cell

• muscle

• tissue

• bone

Tags

NGSS.MS-LS1-3

The heart has how many chambers?

• 1

• 2

• 3

• 4

What are the four chambers of the heart?

• R atrium,

  R ventricle,

  L valve,

  L valve

• R lung,

  R ventricle,

  L lung,

  L ventricle

• R atrium,

  R artery,

  L ventricle,

  L vein

• R atrium,

  R ventricle,

  L atrium,

  L ventricle

The aorta is a:

• vein

• artery

• capillary

• valve