Heart anatomy
These two upper chambers receive blood returning to the heart.
The Atria
Blood travels to the ______ to release carbon dioxide and collect oxygen.
Lungs
Heart rate is usually measured using ______ per minute.
Beats
Children and adolescents should average at least _____ minutes of moderate-to-vigorous physical activity per day.
_________ open and close to prevent blood from flowing backward.
Valves
The ____________ carries blood from the right ventricle to the lungs.
Pulmonary artery
A student counts 44 beats in 30 seconds. What is their calculated heart rate?
88 beats per minute
Teenagers between 13 and 17 years old should usually get this much sleep each night.
8–10 hours
This chamber pumps oxygen-rich blood through the aorta to the body.
The Left Ventricle
Put these structures in the correct order:
aorta, lungs, left atrium, and left ventricle.
lungs → left atrium → left ventricle → aorta
During physical activity, the heart needs to pump blood with ________ to working muscles?
Oxygen
Choose a variety of _______ and fruits, _____-grain foods, and ______ foods. Drink _____ more often.
vegetables, whole, protein, water