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Biology > Breathing System Key Words > Flashcards

Breathing System Key Words Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

Ribs

A

Form protective cage of 12 pairs of bones

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2
Q

Intercostal muscles

A

Attach between the ribs

Move rib cage up and down

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3
Q

Diaphram

A

Sheet if muscle at bade of the cage

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4
Q

Nose

A

Cleans, moistens and warms air when we breath in

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5
Q

Nose hairs

A

Traps dust and bacteria

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6
Q

Epiglottis

A

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

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7
Q

Larynx

A

Voice box

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8
Q

Pathogens

A

Disease causing organisms

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9
Q

Lungs function

A

Gas exchange

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10
Q

Aveolus

A

Tiny air sacs at the end of the bronchioles

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11
Q

Capillaries are

A

One cell thick

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12
Q

White blood cells in aveolus

A

Can engulf bacteria and foreign matter

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13
Q

Involuntary action

A

Dont have to think about doing it

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14
Q

Semi permeable

A

Allows some materials in and out but not all

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15
Q

Inhaling

A

Means breathing in

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16
Q

Exhaling

A

Means breathing out

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17
Q

Carbon dioxide is carried in the plasma as a..

A

Biocarbonate

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18
Q

Red blood cells have .. in them

A

Haemoglobin

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19
Q

Effect of exercise on the breathing rate

A

More oxygen into the body

Increased level of co2

20
Q

Bronchodilators

A

Widen bronchioles

21
Q

Asthma

A

Narrowing of the bronchioles due to an irritant

22
Q

Symptoms

A

Coughing
Wheezing
Tight chest

23
Q

Preventing

A

Avoiding irritants

24
Q

Causes

A

Exercise
Pollen
Dist mites

25
Q

Treatment

A

Using inhalors

26
Q

Adaptions of the lungs for gas exchange

A

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

27
Q

What produces sticky mucus

A

Linging cells of the nose trachea and bronchi

28
Q

What is breathing controlled by

A

Medulla oblongata

29
Q

Asthma causes

A

Constriction of the lower bronchioles

30
Q

What does the brain send to make muscles contract

A

An impulse

31
Q

What is the controlling factor in gas exchange

A

Co2

32
Q

Energy is used to

A

Breath in. NOT breath out

33
Q

What percentage do red bloods cells carry oxygen

A

97%

34
Q

What percent of plasma is carried by oxygen

A

3%

35
Q

Co2 is carried in plasma as

A

Bio carbonate ions

36
Q

Name an excretory organ

A

Lungs

37
Q

Where are the lungs

A

In the thoracic cavity

38
Q

Buccal cavity

A

Mouth region

39
Q

What happens quicker because if warm air passing through nasal passages

A

Diffusion

40
Q

Voice box

A

Larynx

41
Q

What contract during inhalation

A

Inter coastal muscles

Diaphragm

42
Q

Pleural membranes

A

2 membranes
Contain fluid
Prevent friction of lungs

43
Q

What are the alveoli covered in

A

Thin walled blood capillaries

44
Q

Lining if Aveoli

A

One cell thick

45
Q

Explain how oxygen diffuses through aveoli

A

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

46
Q

Explain how co2 diffuses from aveoli

A

Co2 diffuses from plasma into aveoli (blood very acidic)

47
Q

Aveoli adaptions

A

Thin walls - allow rapid diffusion

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

Biology (29 decks)

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