Structures
This organ pumps blood throughout your body.
The heart
The circulatory system transports this gas to body cells.
Oxygen
This side of the heart pumps oxygen-poor blood to the lungs.
The right side
Doing this for 60 minutes a day helps keep your heart strong.
Physical Activity/Exercise
This organ is the control center of the body—but it still needs blood from the circulatory system.
These blood vessels carry blood away from the heart.
The heart is made of this type of muscle.
Blood picks up oxygen in these organs.
The lungs
Too much of this ingredient in food can raise your risk of heart disease.
Salt
About how many times does a heart beat per minute at rest?
60-100 beats per minute
These vessels bring blood back to the heart.
The veins
These components of blood fight off infections.
White Blood Cells
After leaving the left ventricle, blood enters this largest artery.
The aorta
Name one harmful habit that hurts heart health.
smoking, vaping, poor diet, no exercise, etc.
True or False: Your blood is always the same color.
True
This upper left chamber receives oxygen-rich blood from the lungs.
The left atrium.
This liquid portion of blood carries nutrients, wastes, and other materials.
Plasma
Blood returns to the heart from the body through this large vein.
The vena cava
Eating these foods can help keep your blood pressure healthy.
This animal has three hearts.
Octopus
This wall of muscle divides the heart into left and right sides.
The septum.
This is the job of the valves inside the heart.
To prevent blood from flowing backward.
The correct order: Right atrium → Right ventricle → ________________.
The lungs
This term describes when arteries become clogged or narrowed.
Atherosclerosis
If your heart had a “job title,” it would be this.
A pump