Component 1 (the Structure Of The Respiratory System): Soc 17

Question 1

Why do we need our respiratory system?

Answer 1

• to get oxygen into the body
• to remove carbon dioxide from the body
• In sport or physical activity, the respiratory and cardiovascular systems must work closely together to keep the body supplied with oxygen

Question 2

What is vital capacity?

Answer 2

• greatest amount of air that can be pass into and out of the lungs by the most forceful inspiration and expiration

Question 3

What is the tidal volume?

Answer 3

• is the amount of air inspired and expired with each breath

Question 4

How does it work? (Respiratory system)

Answer 4

• When breathing in (inhaling), the intercostal muscles (the muscles between the ribs) contract and lift the chest upwards and outwards while the diaphragm tightens and lowers
• The diaphragm changes from a dome shape to a flatter shape when we breathe in.

Question 5

What happens once inhaled?

Answer 5

• chest volume increases as air is sucked into the lungs
• the intercoastal muscle contract to expand the rib cage
• the diaphragm contract and moves down

Question 6

What is Gaseous exchange?

Answer 6

• Takes place in the alveoli, where oxygen diffuses from the air to the blood and carbon dioxide diffuses from the blood to the air

Question 7

What is oxygen debt?

Answer 7

• the amount of oxygen that is needed for an athlete to consume at the end of a physical activity to break down lactic acid

Question 8

What is VO2 max?

Answer 8

How much volume of oxygen an athlete can consume while exercising at maximum capacity