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Flashcards in 2. Respiratory system Deck (40):
1

What Is the most important body process?

Breathing is the most important body process

2

What is the purpose of breathing?

The purpose of breathing is to inhale oxygen and exhale carbon dioxide

3

What is the name of the breathing body process?

The respiratory system is the breathing process

4

What would happen without the exchange of gasses?

Without the exchange of gasses you would die

5

What is the role of the lungs?

The lungs deliver oxygen for cellular respiration and excrete carbon dioxide

6

What is breathing?

Breathing is bringing in oxygen and letting carbon dioxide out

7

When does breathing begin?

Breathing begins when you breath in through your nose or mouth

8

Where is the air warmed and filtered?

Air is warmed and filtered by tiny hairs called cilia and sticky mucus in your nose

9

What do the cilia do?

Cilia trap dirt and particles and either push them back though the nose (boogers) or digest them

10

Where does the air travel after your nose?

Air travels down the pharynx, past the epiglottis and through your larynx

11

What is the larynx?

Larynx is your voice box

12

What produces sound in the larynx?

The larynx has cords which vibrate as air passes through them, which makes sound.

13

Where does air go after the larynx?

After the larynx the air goes down your trachea

14

Where can you feel your trachea?

Your trachea is the bumps you feel on the front of your neck

15

What makes the bumps in your trachea?

the trachea bumps are cartilage which is flexible but helps to maintain the shape, like a vacuum hose.

16

At the base of the trachea, what are the two tubes called?

The trachea splits into the two bronchi (singular I bronchus)

17

Where does air go after the bronchi?

After the bronchi, air goes into your lungs

18

What do bronchi branch into?

Bronchi branch into bronchioles

19

What are the tiny thin walled sacs called

Bronchioles branch into tiny sacs called alveoli

20

How many alveoli are there?

there are millions of alveoli

21

What happens in the alveoli?

Gas exchange happens in the alveoli

22

What surrounds each alveolus?

Thousands of capillaries surround each alveolus

23

What do alveoli look like?

Alveoli look like bunches of grapes

24

Where do the respiratory and the circulatory systems interact?

In the alveoli, the respiratory and the circulatory systems interact

25

What comes from the capillaries surrounding the alveoli?

De-oxygenated blood comes from the capillaries around the alveoli

26

Which way does diffusion work in the alveoli?

Oxygen diffuses into the blood, and carbon dioxide diffuses out of the blood in the alveoli walls.

27

What happens to the blood once it is full of oxygen from the lungs?

From the lungs, blood is pumped back up into the heart and then to the body

28

What is this whole process called?

The process of getting oxygen and getting rid of carbon dioxide is called gas exchange

29

What are two diseases that occur from smoking.

Cancer and emphysema are caused by smoking tobacco

30

What is emphysema?

Emphysema is when the alveoli lose their elasticity which makes breathing very difficult

31

What other problem usually happens at the same time as emphysema? This is call co-morbidity

Heart disease usually occurs at the same time as emphysema

32

What does carcinogenic mean?

Carcinogenic means it causes cancer

33

How many carcinogenic (cancer causing) chemicals are in cigarettes?

At least 50 carcinogens are in cigarettes

34

What are the six most harmful chemicals in cigarettes?

Nicotine, are, carbon monoxide, formaldehyde, hyrogen cyanide and benzine are the most harmful chemicals in cigarettes

35

What else do cigarettes destroy in your body?

Cigarettes also destroy the cilia which lines the respiratory system, so that dirt from the air cannot be removed easily.

36

What is the order of the path air takes

mouth/nose --- nasal cavity – pharynx --- larynx--- trachea --- bronchus---bronchioles – lungs – alveoli

37

What is the difference between the bronchus and the bronchioles?

Bronchioles are smaller versions of the bronchus

38

What is the gas exchange called?

Diffusion is the process of gas exchange

39

How are alveoli structured to speed up gas exchange?

Alveoli are very thin, there are millions of them, and they are surrounded by capillaries which speeds up air exchange

40

What happens to oxygenated blood?

From the capillaries it goes back pulmonary vein and into the heart and then pumped to the rest of the body