circulatory/respiratory system test with written part CP minus e

Front

What is the part of the blood vessel through which blood flows called?

Back

Lumen

Front

What are tiny sacs of lung tissue specialized for the movement of gases between air and blood?

Back

Alveoli

Front

What is the function of the tubes and alveoli in the lungs?

Back

To increase the surface area for more O2 and CO2 exchange.

Front

Which is the smallest of the three blood vessels?

Back

Capillaries

Front

According to Boyle’s law, what happens to the pressure exerted by a gas as the volume of space it occupies increases?

Back

The pressure decreases.

Front

What is the primary function of arteries in the circulatory system?

Back

To carry oxygenated blood away from the heart.

Front

What is the role of veins in the circulatory system?

Back

To return deoxygenated blood back to the heart.

Front

What is the diaphragm's role in respiration?

Back

To help expand and contract the lungs during breathing.

Front

What is the significance of capillaries in the circulatory system?

Back

They facilitate the exchange of oxygen, carbon dioxide, nutrients, and waste between blood and tissues.

Front

What is the main gas exchanged in the alveoli?

Back

Oxygen and carbon dioxide.