Introduction and Anatomy of Lungs, Airways and Blood Supply Flashcards Preview

Respiratory System > Introduction and Anatomy of Lungs, Airways and Blood Supply > Flashcards

Flashcards in Introduction and Anatomy of Lungs, Airways and Blood Supply Deck (79)
Loading flashcards...
1

What are some functions of the respiratory system?

Gas exchange

Acid base balance

Protection from infection

Communication via speech

2

What is the gas exchange that takes place?

Oxygen added to the blood from the air

Carbon dioxide removed from the blood into the air

3

How does speech occur?

Larynx vibrating and manipulating air

4

Does speech occur on inspiration or expiration?

Expiration

5

In basic terms, why do we breathe?

We need oxygen for energy, which fuels cells and allows them to perform their functions

6

What would being unable to breathe oxygen do to us?

Our cells would die, and then we would die

7

How can enery be produced without oxygen, and why is this not feasible long term?

Anaerobic respiration, but this does not produce enough energy

8

What is produced when oxygen is burned?

CO2 as waste

9

What is external respiration?

Oxygen going in and out of the body

10

What is internal/cellular respiration?

Biochemical process within cells

11

What vessel carries blood from the heart to the lungs and is this oxygenated?

Pulmonary artery which carries deoxygenated blood

12

13

What vessel carries blood from the lungs to the heart and is this oxygenated?

Pulmonary vein carries oxygenated blood from the lungs to the heart

14

What two systems does external respiration require integration of?

Respiratory and cardiovascular

15

What are the exchanges of oxygen present once we intake air?

1) Between atmosphere and lung (alveoli)

2) Between lungs and blood

3) Between the blood and cells (transported to cells in the blood)

16

What are alveoli?

Regions of the lung that are thin enough to allow gas exchange

17

What are arteries?

Vessels that carries blood away from the heart

18

What are veins?

Vessels that carries blood towards the heart

19

What are the two kinds of circulation relevent to the lungs?

Pulmonary circulation

Systemic circulation

20

How does pulmonary circulation and systemic cirulation contrast each other?

Pulmonary delivers CO2 and picks up oxygen

Systemic delivers O2 and picks up CO2

21

Which of the pulmonary vein and artery carries oxygenated blood?

Pulmonary vein

22

What displays the intimate relationship between the respiratory and cardiovasular systems during an increase in energy demand?

Rate and depth of breathing increase (more oxygen acquired and carbon dioxide diposed of)

Heart rate and force of contraction increases (delivered to muscle and waste removed quicker)

23

Why can gas exchange only take place in capillaries?

The walls are thin enough to allow it

24

Where are the 2 places that gas exchange occurs in the respiratory system?

Lungs (alveoli)

Systemic capillaries

25

What is oxygen and CO2 exchange like in steady state?

Net volume of oxygen and CO2 exchange in the lung per unit of time is equal to the net exchange at the tissue

26

What are the average volumes of O2 and CO2 exchanged per minute?

250ml of oxygen

200ml of CO2

27

What are the typical breathing rate of someone at rest and at maximum exercise?

10-20 breaths/min at rest

40-45 breaths/min at maximum exercise

28

What is A?

Pharynx

29

What is B?

Trachea

30

What is C?

Lung