Breathing System Key Words

Question 1

Ribs

Answer 1

Form protective cage of 12 pairs of bones

Question 2

Intercostal muscles

Answer 2

Attach between the ribs

Move rib cage up and down

Question 3

Diaphram

Answer 3

Sheet if muscle at bade of the cage

Question 4

Nose

Answer 4

Cleans, moistens and warms air when we breath in

Question 5

Nose hairs

Answer 5

Traps dust and bacteria

Question 6

Epiglottis

Answer 6

Flap of skin that closes over trachea when we swallow to prevent choking

Question 7

Larynx

Answer 7

Voice box

Question 8

Pathogens

Answer 8

Disease causing organisms

Question 9

Lungs function

Answer 9

Gas exchange

Question 10

Aveolus

Answer 10

Tiny air sacs at the end of the bronchioles

Question 11

Capillaries are

Answer 11

One cell thick

Question 12

White blood cells in aveolus

Answer 12

Can engulf bacteria and foreign matter

Question 13

Involuntary action

Answer 13

Dont have to think about doing it

Question 14

Semi permeable

Answer 14

Allows some materials in and out but not all

Question 15

Inhaling

Answer 15

Means breathing in

Question 16

Exhaling

Answer 16

Means breathing out

Question 17

Carbon dioxide is carried in the plasma as a..

Answer 17

Biocarbonate

Question 18

Red blood cells have .. in them

Answer 18

Haemoglobin

Question 19

Effect of exercise on the breathing rate

Answer 19

More oxygen into the body

Increased level of co2

Question 20

Bronchodilators

Answer 20

Widen bronchioles

Question 21

Asthma

Answer 21

Narrowing of the bronchioles due to an irritant

Question 22

Symptoms

Answer 22

Coughing
Wheezing
Tight chest

Question 23

Preventing

Answer 23

Avoiding irritants

Question 24

Causes

Answer 24

Exercise
Pollen
Dist mites

Question 25

Treatment

Answer 25

Using inhalors

Question 26

Adaptions of the lungs for gas exchange

Answer 26

Aveoli have a large surface area
Walls are aveoli are elastic
Short distance between air and aveoli

Question 27

What produces sticky mucus

Answer 27

Linging cells of the nose trachea and bronchi

Question 28

What is breathing controlled by

Answer 28

Medulla oblongata

Question 29

Asthma causes

Answer 29

Constriction of the lower bronchioles

Question 30

What does the brain send to make muscles contract

Answer 30

An impulse

Question 31

What is the controlling factor in gas exchange

Answer 31

Co2

Question 32

Energy is used to

Answer 32

Breath in. NOT breath out

Question 33

What percentage do red bloods cells carry oxygen

Answer 33

97%

Question 34

What percent of plasma is carried by oxygen

Answer 34

3%

Question 35

Co2 is carried in plasma as

Answer 35

Bio carbonate ions

Question 36

Name an excretory organ

Answer 36

Lungs

Question 37

Where are the lungs

Answer 37

In the thoracic cavity

Question 38

Buccal cavity

Answer 38

Mouth region

Question 39

What happens quicker because if warm air passing through nasal passages

Answer 39

Diffusion

Question 40

Voice box

Answer 40

Larynx

Question 41

What contract during inhalation

Answer 41

Inter coastal muscles

Diaphragm

Question 42

Pleural membranes

Answer 42

2 membranes
Contain fluid
Prevent friction of lungs

Question 43

What are the alveoli covered in

Answer 43

Thin walled blood capillaries

Question 44

Lining if Aveoli

Answer 44

One cell thick

Question 45

Explain how oxygen diffuses through aveoli

Answer 45

Oxygen diffuses through aveoli and capillary linings and attached to red blood cells that contain haemoglobin

Question 46

Explain how co2 diffuses from aveoli

Answer 46

Co2 diffuses from plasma into aveoli (blood very acidic)

Question 47

Aveoli adaptions

Answer 47

Thin walls - allow rapid diffusion

Moist surface area - gases can be diffuses quicker in a solution