☀️The Breathing System

Question 1

Base of thorax is formed by

Answer 1

A sheet of involuntary muscle called the diaphram

Question 2

Thorax

Answer 2

Respiratory system in chest

Question 3

Ventilation

Answer 3

The movement of air in and out of the lungs

Question 4

Breathing in through nose

Answer 4

Causes air to be filtered moistened and warmed

Question 5

Epiglottis

Answer 5

Prevents good and drink entering trachea

Question 6

Larynx

Answer 6

Contains the vocal cords for speech

Question 7

Trachea

Answer 7

Windpipe

Question 8

Trachea bronchioles and bronchi are made up of

Answer 8

Muscle, elastic fibres and rigid cartilage

Question 9

Mucus

Answer 9

Traps dust and microorganisms

Question 10

Cilia

Answer 10

Tiny hairs that beat to sweep mucus out of the air pipes into the oesophagus
They defend lungs from infection

Question 11

What are each lung enclosed by

Answer 11

Pleural membranes

Question 12

Pharynx

Answer 12

Voicebox

Question 13

Cartilage

Answer 13

Strong rigid material and prevents the tubes from closing in when air is drawn through them

Question 14

Where does not contain cartilage

Answer 14

Walls of lower and smaller bronchioles

Question 15

Lungs

Answer 15

Where has exchange takes place

Question 16

Outer pleura

Answer 16

Lines chest wall and diaphragm

Question 17

Inner pleura

Answer 17

Lines lungs

Question 18

Pleura cavity is the gap between two pleuras which contains a liquid which..

Answer 18

Lubricates membranes and reduces friction during breathing

Question 19

Aveoli

Answer 19

Air sacs at the end of the bronchioles and their function is has exchange

Question 20

Functions of aveoli

Answer 20

Provide a huge surface area for gas exchange

Thin walled

Moist surface area

Question 21

Respiration

Answer 21

Takes place in the body in order to supply the cells with energy

Question 22

As a result of respiration…

Answer 22

The cells are used up oxygen and produce carbon dioxide and water and pass out of the body by diffusion

Question 23

Oxygen is transported by

Answer 23

Combining with red haemoglobin to form oxyhemoglobin

Question 24

Carbon dioxide and water are both carried in

Answer 24

Blood plasma

Question 25

Breathing in is known as

Answer 25

Inhalation/ inspiration

Question 26

Breathing out is known as

Answer 26

Exhalation or expiration

Question 27

Inhalation steps

Answer 27

1. Brain controls rate of breathing
2. The inter coastal muscles and diaphram contract
3. The chest cavity gets bigger
4. The air is forced into the lungs by higher external air pressure

Question 28

Exhalation steps

Answer 28

1. Thé intercostal muscles and ribs move down and in and the diaphram curves up
2. Size of chest cavity decreases
3. The pressure in the chest cavity increases
4. Air is forced out of lungs

Question 29

Water concentration in inhaled air is

Answer 29

LOW

Question 30

Water concentration in exhaled air is

Answer 30

HIGH

Question 31

Make a breathing disorder

Answer 31

Asthma

Question 32

Asthma is triggered by

Answer 32

Outside allergens

Question 33

Asthma is caused by

Answer 33

The narrowing of the bronchioles

Question 34

Asthma is controlled by

Answer 34

Avoiding allergens

Question 35

What is human breathing controlled by

Answer 35

The brain

Question 36

High levels of co2 in blood:

Answer 36

Form acid
Decrease pH
Trigger brain to cause breathing

Question 37

Carbon dioxide is a controlling factor in

Answer 37

Gas exchange

Question 38

What happens to Carbon dioxide in blood after exercise

Answer 38

It increases