Exchange Surfaces And Breathing

Question 0

Function of the larynx

Answer 0

Contains vocal chords

Question 1

Composition of mucus?

Answer 1

Glycoproteins and carb chainz

Question 2

Function of trachea

Answer 2

Cartilage keeps trachea open during changes in pressure

C-shaped so as not to crush oesophagus

Question 3

Function of ciliated epithelium

Answer 3

To trap and remove particulates and pathogens

Question 4

Function of external intercostal muscles

Answer 4

Lift the rib cage up and out to increase volume

Question 5

Function of pleural membranes

Answer 5

To secrete pleural fluid which reduces friction

Question 6

Function of palate

Answer 6

Separates nasal and buccal cavities to permit eating and breathing at the same time

Question 7

Function of nasal hairs

Answer 7

To trap particulates

Question 8

Function of sternum

Answer 8

Support the ribs

Question 9

Function of pulmonary artery

Answer 9

Delivers DEOXYGENATED blood to the lungs

Question 10

Function of alveoli

Answer 10

Site of gas exchange

Question 11

Function of muscular domed diaphragm

Answer 11

Contraction increases volume of thorax

Question 12

Function of epiglottis

Answer 12

Covers trachea when swallowing

Question 13

What makes an efficient exchange surface?

Answer 13

Large s.a
Thin exchange surface
Protection from drying out
Diffusion gradient