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Cardiovascular System 1 > Cardiovascular System > Flashcards

Flashcards in Cardiovascular System Deck (8)
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1

What is the role of the blood?

Transports gasses, blood cells and nutrients

2

What is the role of the blood vessels?

These are structures that can carry the blood.

3

What is the role of the Heart?

It pumps blood around the body by squeezing blood out of the vessels each time it beats.

4

Why is it important for the system to transport oxygen?

The CV system transports oxygen around the body in the blood. The oxygen is then carried to the muscles and vital organs. Oxygen is needed in energy during physical activity.

5

Why is the transport of Carbon Dioxide important?

Carbon Dioxide is produced as a by product during energy production. The cv system takes CO2 away from the muscles.

6

Why does it transport nutrients?

Nutrients are broken down from food we eat and transported in the body and blood. Athletes need macros and micro nutrients o be able to perform well.

7

What is happening during clotting?

Platelets are transported in the blood to help clot an open wound. They gather at the site and form a 'plug' to prevent blood loss.

8

What does the CV system do in terms of body temperature?

In the heat blood vessels close to the surface of the skin enlarge, so that more heat can be lost from the blood. This process is called vasodilation.

In the cold the blood vessels close to the surface of the skin narrow to reduce the amount of heat energy lost from the blood. This process is called vasoconstriction.