Blood and cardio review

Front

What does the parasympathetic nervous system do to your heart rate?

Back

It slows down the heart rate.

Front

What is edema?

Back

A condition characterized by a drop in blood proteins and subsequent swelling of tissues.

Front

What maintains peripheral resistance of the blood?

Back

The size of arterioles.

Front

Which part of the brain controls heart rate?

Back

The medulla, which is part of the brain stem.

Front

Describe the structure of arteries.

Back

Arteries have thick muscular walls and are elastic.

Front

What is the function of the medulla in relation to the heart?

Back

It regulates heart rate.

Front

What is the role of arterioles in the circulatory system?

Back

They regulate blood flow and peripheral resistance.

Front

What happens to heart rate during stress?

Back

The sympathetic nervous system speeds up the heart rate.

Front

What is the difference between arteries and veins?

Back

Arteries have thick, elastic walls; veins have thinner walls and valves.

Front

What is the significance of blood proteins?

Back

They help maintain osmotic pressure and prevent edema.