Blood Vessels and functions of the heart during exercise

What is the difference between Arteries and Veins?

Arteries carry blood away from the heart while veins carry blood toward the heart.

What happens to heart rate during exercise and why?

It increases as the heart needs to deliver more oxygen to the working muscles.

What happens to stroke volume during exercise?

It increases, heart pumps more blood per beat.

What happens to stroke volume during exercise?

It increases, heart pumps more blood per beat.

What happens to blood vessels during exercise?

It dilates so more blood flows to working muscles.

What happens to blood pressure during exercise?

It rises to force and push more blood through vessels.

What are the three types of blood vessels?

Arteries, veins and capillaries.

What do Arteries do?

Carry blood away from the heart, have thick walls and high pressure.

What do Veins do?

Carry blood toward the heart, have thin walls, low pressure and contain valves.

What do Capillaries do?

Microscopic vessels where oxygen and nutrients are exchanged with body tissues.

Why do blood vessels dilate during exercise?

To increase blood flow to working muscles.

Why does breathing rate increase during exercise?

To take in more oxygen and remove carbon dioxide.

What happens to stroke volume during exercise and why?

It increases as the heart pumps more blood per beat to meet oxygen demand.

What happens to cardiac output during exercise and why?