The vocal cords are located inside ....?

Which structure, also known as the windpipe, is the main passageway to your lungs?

The two air passages that lead to each lung are called

The microscopic structures in the lungs where gases are exchanged with blood vessels are called

When your diaphragm contracts,

What is the average number of heartbeats per minute for a normal person?

The muscular chambers that pump blood to the lungs or body are the

The smallest blood vessels in your body are the

The blood vessels that return blood to the heart are called

What is the purpose of valves?

Most blood cells are formed in the

What is the job of platelets?

How long does it take for your plasma to make one complete trip through your circulatory system?

Which of the following are transported in blood plasma?

Which of the following is part of the body's nonspecific defense?

A vaccine produces _______________ immunity.

Signals from your brain or spinal cord to muscles and other parts of your body are carried by

Which part of the brain is the largest?

Which structure of the eye bends light and focuses an upside-down image?

An infection in your semicircular canals would most likely affect your

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