Respiratory System

Question 1

What is the respiratory system?

Answer 1

The system in the human body that enables us to breathe

Question 2

Describe the act of breathing

Answer 2

Inhalation and exhalation, which is the absorption of oxygen from the air in order to produce energy, then the discharge of carbon dioxide, which is the byproduct of the process

Question 3

How many parts of the respiratory system divided into?

Answer 3

Two, the upper and lower respiratory track

Question 4

What does the upper respiratory tract include?

Answer 4

The nose, mouth and the beginning of the trachea

Question 5

What does the lower respiratory tract include?

Answer 5

The trachea, the bronchi, bronchioles and the lungs

Question 6

What is the bronchi?

Answer 6

Extensions of the wind pipe that shuttle air to and from the lungs.

Question 7

What are bronchioles?

Answer 7

Air passages inside the lungs that branch off like tree limbs from the bronchi

Question 8

What do bronchioles do?

Answer 8

Deliver air tiny sacs, called alveoli, where oxygen, and carbon dioxide are exchanged

Question 9

What are alveoli?

Answer 9

Tiny air sacs that sit at the very end of the respiratory tree and exchange oxygen and carbon dioxide molecules to and from the bloodstream

Question 10

What are the functions of the respiratory system?

Answer 10

1. Inhalation and exhalation
2. External respiration
3. Internal respiration
4. Air vibrating the vocal chords to create sound
5. Olfaction

Question 11

What is inhalation and exhalation?

Answer 11

Pulmonary ventilation or breathing

Question 12

What is external respiration?

Answer 12

The exchange of gases between the lungs and the bloodstream

Question 13

What is internal respiration?

Answer 13

The exchange of gases between the bloodstream and body tissues

Question 14

What is olfaction?

Answer 14

Smelling

Question 15

What are the primary organs of the respiratory system?

Answer 15

The lungs, which carry out the exchange of gases as we breathe

Question 16

Play the respiratory system game

Answer 16

..

Question 17

What is the lungs main function?

Answer 17

To help oxygen from the air we breathe into the red cells in the blood. They also help the body to get rid of CO2 gas when we breathe out

Question 18

What are the main processes of lung function?

Answer 18

1. Pulmonary ventilation
2. Pulmonary diffusion
3. Transport of respiratory gases
4. Internal respiration

Question 19

What is pulmonary ventilation?

Answer 19

Also known as breathing, pulmonary ventilation involves air, being inhaled through the nasal and oral cavities, and then moving through the pharynx and larynx and trachea into the lungs. Then exhaled, the air flows back through the same pathway

Question 20

What is pulmonary diffusion?

Answer 20

The transfer of gases from the lungs to the bloodstream

Question 21

Describe the transport of respiratory gases

Answer 21

When almost all of the oxygen is carried in the blood by attachment to haemoglobin, a protein in the red blood cells. As oxygen is dissolved in the blood, it rapidly combines with the haemoglobin to form oxyhaemoglobin.

Question 22

Describe internal respiration

Answer 22

Occurring in the metabolising tissues, internal respiration is where oxygen diffuses out of the blood and carbon dioxide diffuses out of the cells

Question 23

Describe inspiration

Answer 23

This is when the diaphragm contracts and flattens, which increases volume of chest cavity, and pulls lung walls outwards

Question 24

When does inspiration occur?

Answer 24

When lung pressure is decreased below atmospheric pressure, and that causes the air to move in the lungs

Question 25

When does expiration occur?

Answer 25

When lung pressure is increased above atmospheric pressure, and that pushes the air out of the lungs

Question 26

What happens during expiration?

Answer 26

The diaphragm relaxes and moves upwards, which allows the ribs to return to resting positions.

Question 27

Does inspiration, decrease, or increase pressure in the lungs?

Answer 27

Decreases as

Question 28

Does expiration decrease or increase air pressure in the lungs?

Answer 28

Increases

Question 29

How does respiration change during exercise?

Answer 29

Due to the body, using more oxygen and producing more carbon dioxide, breathing increases from 15 times a minute to 40- 60 times a minute to cope with the extra demand