Soc 17- The Structure Of The Respiratory System

Question 1

What makes up the respiratory system

Answer 1

It includes the nose, mouth, throat, voice box, windpipe, lungs and vessels

Question 2

Why do we need our respiratory system?

Answer 2

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

Question 3

Inhaled air ( inspiration)

Answer 3

20% oxygen and 0.04% carbon dioxide

Question 4

Exhaled air (exhalation)

Answer 4

16% oxygen and 4% carbon dioxide

Question 5

Vital capacity

Answer 5

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

Question 6

Tidal volume

Answer 6

The amount of air inspired and expired with each breath

Question 7

Breathing explained in steps

Answer 7

1. 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
2. The diaphragm changes from a dome shape to a flatter shape when we breathe in
3. The diaphragm relaxes when we breathe out, moving upwards back to a dome shape
4. These actions open the lungs and create a vacuum inside so that air can rush through the nose and mouth.

Question 8

Once air is inhaled…

Answer 8

The air passes through the larynx and then through the trachea into one of the two branches called the bronchi, through which air passes into either lung.
Smaller branches called bronchioles extend out from the bronchi and at the very ends of these they form millions of tiny sacs called alveoli
In the alveoli, oxygen passes into the blood so it can be transported around the body

Question 9

Gaseous exchange

Answer 9

While oxygen is taken in carbon dioxide is given out, or exchanged, into the alveoli and is then breathed out

Question 10

Oxygen debt

Answer 10

The amount of oxygen needed at the end of a physical activity to break down any lactic acid.

Question 11

Respiration

Answer 11

The movement of air from outside the body into the cells within tissues

Question 12

Trachea

Answer 12

The tube that takes air into the chest, also known as the windpipe

Question 13

Haemoglobin

Answer 13

A type of protein found in every red blood cell

Question 14

VO2 max

Answer 14

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

Question 15

Anaerobic exercise

Answer 15

Working at a high intensity level without oxygen for energy production

Question 16

How do the cardiovascular and respiratory systems work together?

Answer 16

An efficient respiratory systmen aids the cardiovascular system by providing a constant suppky of oxygen for the muscles and by removing carbon dioxide.

Question 17

What type of exercise results in oxygen debt?

Answer 17

Anaerobic exercise

Question 18

How is oxygen debt repaid?

Answer 18

Repaid through deep, gasping breaths at the end of an activity.