Cardiovascular System: Functions of Cardiovascular System

1. Choose the correct TWO responses for the following question:

What do exercising muscles require to produce energy for movement?

2. Fill in the blanks in the following sentence by dragging and dropping the correct responses.

anaerobic
oxygen
aerobic
kinetic
chemical
carbon dioxide
When exercising, muscles continuously produce and use energy, they convert
energy into movement or
energy.

3. Indicate which of the following is describing Aerobic Respiration and Anaerobic Respiration by dragging and dropping the correct term.

Anaerobic Respiration
Aerobic Respiration
Low intensity exercise where oxygen is in plentiful supply and carbon dioxide is produced as a waste product More intense exercise where muscles are working harder and lactic acid is produced as a waste product

4. Describe how the cardiovascular system helps the body to regulate heat when we exercise.

Type your answer in the box then check your answer against the model answer.

Contracting muscles also produce heat, which is why we start to feel warmer when we exercise. Too much heat is harmful to the body so it must be removed. The cardiovascular system transports the heat from the working muscles to the skin, where it can be lost to the atmosphere. We can see our skin, in particular our faces, turn red when we exercise intensely – this is due to an increase in blood flow to the skin, in order to increase heat loss.

Cardiovascular System: Heart Structure (1) Cardiovascular System: Heart Function (2) Cardiovascular System: Functions of Cardiovascular System (3) Cardiovascular System: Blood Pressure (4) Cardiovascular System: The Vascular System (5) Respiratory System: Structure (6) Respiratory System: Function (7) Respiratory System: Breathing (8) Respiratory System: Lung Volumes (9) Introduction to short and long term effects of exercise (10) Short term cardiovascular responses to exercise (11) Short term respiratory responses to exercise (12) Short term muscular and skeletal responses to exercise (13) Introduction to long term adaptations to exercise (14) Long term cardiovascular adaptations to exercise (15) Long term respiratory adaptations to exercise (16) Long term muscular and skeletal adaptations to exercise (17)