Respiratory System

Question 1

List the main organs involved in the entering of oxygen to the lungs

Answer 1

Nose, Trachea, Pharynx, Oestrophogus, Larynx, Bronchi, Branchiolies, Pleura, Alveoli

Question 2

Function of Nose

Answer 2

Moisten air to the nostrils
Organ of smell
Lined with microbal hairs and mucus to collect bacteria

Question 3

Function of the Pharynix

Answer 3

channels air and food down the airways consisting of 3 divisions in the upper respiritary system

Question 4

Function of the Larynx

Answer 4

Essential for speech production

Question 5

Function of Trachea

Answer 5

Is the main airway to the lungs, located below the larnyx

Question 6

Function of the Bronchi

Answer 6

Connected to the trachea they enter the lungs at the hilium.
Network of passages that supp;y the lungs with air.
Made of cartilage, involuntary muscle and connective tissue.

Question 7

Diaphram

Answer 7

Muscle that contracts and relaxes to allow air into the lungs

Question 8

Epiglottis

Answer 8

leaf shaped cartilage that is controlled by the larnix to open and close during swallowing

Question 9

The upper respiritary system consists of:

Answer 9

pharynx: nasopharynx, oropharnyx, laryngopharynx.

Question 10

The lower respiritary system consists of:

Answer 10

larnyx, trachea, broncioli, bronciolipulmonary segments, bronchilies and alveoli.

Question 11

pleural membrane

Answer 11

gives the lungs flexibility

Question 12

alvioli

Answer 12

surrounded by a network of capilaries. De-oxygenated blod enters the capilary network and oxygenated blood leaves via pulmonary veins. Gas exchange takes place .

Question 13

what are the 3 defences of the respiratory system

Answer 13

Cilia- sweeping motion to transport mucus
- produced by goblet cells
macrophages- attempt to clean off micro-organisms

Question 14

ventalation is

Answer 14

the movement of air in and out the lungs

Question 15

inhilation is

Answer 15

inhale of air into the lungs

Question 16

exhilation is

Answer 16

movement of air out of the lungs

Question 17

tidal volume is

Answer 17

ammount of air moved in and out of the lungs in a quiet relaxed state

Question 18

external respiration

Answer 18

air into lungs- alveoli- blood- air back to alvioli and released as CO2

Question 19

Internal respiration

Answer 19

co2- blood- body cells- co2- blood

Question 20

Describe diffusion

Answer 20

De-oxygenated blood from Pulmonary artery
air arrives (high o2 low co2)
Air departs (low o2 high co2)
co2 passes from blood to alvioli
oxygenated bloof travels to heart via pulmonary veins

Question 21

what are chemoreceptors

Answer 21

neurotransmitters found in the aorta send impluses to the medulla and pons about the 02 and co2 levels and controls inhaling and exhaling

Question 22

what are intercostal muscles

Answer 22

muscles between the ribs that aid the diaphragm movements