Lung Test Anatomy

Question 1

Accessory muscles?

Answer 1

Sternocleoidmastoid
Scalenes group
Pectoralis minor

Question 2

Principle muscle

Answer 2

Diaphragm

External intercostals

Question 3

Active muscles

Answer 3

Internal intercostals
Abdominals
Quadratus lumborum

Question 4

Sternocleiomastoid

Answer 4

Elevates sternum

Question 5

Scalenes group

Answer 5

Elevates upper ribs

Question 6

Pectoralis Minor

Answer 6

Raise ribs during inspiration, expands thoracic cavity

Question 7

External intercostals

Answer 7

Elevates ribs

Question 8

Diaphragm

Answer 8

Dome descends, increases volume of thoracic cavity, elevates lower ribs

Question 9

Internal intercostals

Answer 9

Pull ribs down

Question 10

Abdominals

Answer 10

Pulls ribs down, pushes diaphragm up

Question 11

Quadratus lumborum

Answer 11

Pulls ribs down

Question 12

Trachea

Answer 12

Filters the air, windpipe

Question 13

Process of breathing

Answer 13

Tracea: filters the air, branches into two bronchi, tubes that lead to lungs. Once in lungs, oxygen moved to bloodstream. Blood carries O2 where needed. RBC collect carbon dioxide and transport it back to lungs.

Question 14

What happens in the alveoli

Answer 14

Exchange of O2 and CO2 takes place. Carbon dioxide is exhaled.

Question 15

Feedback loop of the control of respiration

Answer 15

Increase in arterial carbon dioxide.
Low ph level.
Central chemoreceptors on medulla respond to signal.
Medullary respiratory centers
Respiratory muscles
Increase in ventilation, more carbon dioxide exhaled
Arterial carbon dioxide and ph go back to normal

Question 16

What produces surfactant

Answer 16

Pleural membrane, allows lungs to stick to ribs