CARDIOVASCULAR SYSTEM

Blood Flow

100

Blood enters the heart here first.

A. Right atrium
B. Left atrium
C. Right ventricle
D. Left ventricle

A. Right atrium

200

The right ventricle sends blood to the?

A. Brain
B. Lungs
C. Left atrium
D. Body

B. Lungs

300

This chamber sends blood to the whole body.

A. Right atrium
B. Right ventricle
C. Left atrium
D. Left ventricle

D. Left ventricle

400

Blood comes back from the lungs and enters the.

A. Right atrium
B. Left atrium
C. Right ventricle
D. Body

B. Left atrium

500

What is next in blood flow after the right ventricle?

A. Left ventricle
B. Body
C. Lungs
D. Right atrium

C. Lungs

Heart Parts

100

The heart has __ chambers.
A. 2
B. 3
C. 4
D. 5

C. 4

200

These pumping chambers push blood out.
A. Atria
B. Ventricles
C. Valves
D. Septum

B. Ventricles

300

These chambers receive blood.
A. Ventricles
B. Atria
C. Valves
D. Veins

B. Atria

400

This separates the left and right sides.
A. Valve
B. Atrium
C. Septum
D. Ventricle

C. Septum

500

These stop blood from going backwards.
A. Veins
B. Arteries
C. Capillaries
D. Valves

D. Valves

Blood Facts

100

Blood carries __ to the body.
A. Oxygen
B. Dirt
C. Sugar only
D. Nothing

A. Oxygen

200

Blood returns to the heart in __.
A. Arteries
B. Veins
C. Valves
D. Lungs

B. Veins

300

Arteries carry blood __ from the heart.
A. Toward
B. Away
C. Around
D. Into lungs

B. Away

400

This gives blood its red color.
A. Hemoglobin
B. Fat
C. Water
D. Calcium

A. Hemoglobin

500

These blood cells fight germs.
A. Red cells
B. White cells
C. Platelets
D. Gas cells

B. White cells

Heart Job

100

The heart works like a __.
A. Sponge
B. Pump
C. Rock
D. Balloon

B. Pump

200

The heart pumps blood to your __.
A. Body
B. Shoes
C. Hair
D. Teeth

A. Body

300

Blood goes to the lungs to pick up __.
A. Food
B. Gas
C. Oxygen
D. Sugar

C. Oxygen

400

The heart helps remove __ from the body.
A. Water
B. Vitamins
C. Carbon dioxide
D. Blood

C. Carbon dioxide

500

The heart beats about __ times a day.
A. 1,000
B. 10,000
C. 100,000
D. 1,000,000

C. 100,000

Random

100

Cardio means __.
A. Legs
B. Heart
C. Brain
D. Skin

B. Heart

200

Veins are usually colored __ in science diagrams.
A. Green
B. Blue
C. Yellow
D. Pink

B. Blue

300

Arteries are usually colored __ in diagrams.
A. Black
B. Red
C. Purple
D. Orange

B. Red

400

Doctors listen to your heart with a __.
A. Thermometer
B. Ruler
C. Stethoscope
D. Compass

C. Stethoscope

500

The strongest chamber of the heart is the __.
A. Right atrium
B. Left ventricle
C. Right ventricle
D. Left atrium

B. Left ventricle