The Cardio-respiratory System Flashcards Preview

Pe > The Cardio-respiratory System > Flashcards

Flashcards in The Cardio-respiratory System Deck (24):
1

What is the role the trachea

(Or windpipe) carries air from the mouth and the nose to the lungs

2

What is the role of the bronchi

Carries air from the trachea into the lungs

3

What is the role of bronchioles

Carries air from the bronchi to the alveoli

4

What are the lungs

Pair of large spongy organs optimised for exchange between our blood and the air

5

What is alveoli

Many tiny air sacs in the lungs which allow for rapid gaseous exchange to happen

6

Why is the alveoli good at gaseous exchange

Large surface area, thin walls, lots of capillaries.

7

What is Haemohlbin

The red pigments found in red blood cells

8

What is oxyhaemoglobin

Formed when oxygen combines with haemoglobin

9

What are Abdominal muscles

The muscles which helps force air out of the lungs and do speeds up expiration

10

Spirometer trace

Is a measurement of lung volume

11

What is tidal volume

The volume of air breathed in or out during an normally breath at rest

12

What is the expiratory reverse volume (ERV)

The additional air that can be forcibly exhaled after the expiration of a normal tidal volume

13

What is the inspiration reverse volume (IRV)

The additional air that can be forcibly inhales after the inspiration of a normal tidal volume

14

What is Residual volume

The volume of air that remains in the lungs after a maximal expiration

16

Inspiring

Breathing in

17

Expiring

Breathing out

18

Cardiac cycle

The process of the heart going through the stages of systole and diastole in the atria and ventricle

19

Haemoglobin

The substance in red blood cells which transports oxygen and carbon dioxide

20

Arteries

These have thick walls and carry oxygenated blood at high pressure away from the heart

21

Veins

These carry deoxygenated blood back to the heart and they have thinner walls

22

Capillaries

These are microscopic vessels that allow carbon dioxide, oxygen and waste to pass their very thin walls

23

Cardiac output

Is the amount of blood which is ejected from the heart in one minute. Stroke volume x heart rate

24

Stroke volume

The amount of blood pumped out of the heart by each ventricular during one contraction

25

Heart rate

The number of times the heart beats per minute