pulmonary ventilation

Question 1

what is pulmonary ventilation?

Answer 1

Mechanical act of breathing where gases are exchanged between atmosphere and alveoli due to developed pressure gradients

Question 2

What is the primary inspiratory muscle?

Answer 2

diaphragm

Question 3

the diaphragm is innervated by the ___.

Answer 3

phrenic nerve

Question 4

when the diaphragm contracts it becomes ___ and allows the thoracic cavity to ___.

Answer 4

flat
expand

Question 5

muscles between ribs on outside

Answer 5

external intercostals

Question 6

These are active during labored breathing

includes ___, scalenes and pectoralis minor

Answer 6

accessory muscles
sternocleidomastoid

Question 7

during exhalation. the natural tendency of elastic tissues of chest wall and lungs to spring back inward due to surface tension

Answer 7

elastic recoil

Question 8

during exhalation the ___ and ___ aid in relaxtion.

Answer 8

diaphragm
external intercostals

Question 9

During exhalation, the contraction of ___ provides for force expiration.

Answer 9

internal intercostals

Question 10

also works during labored breathing, works with internal intercostals

Answer 10

abdominal muscles