Exam 4 Physiology

internal intercostals are involved in ____

expiration

external intercostals are involved in _____

inspiration

B

alveoli types of cells:

mostly type 1

mucus escelator

pulmonary circulation is ___ flow and ____ pressure system

high low

D

How mnay fluid per day is lost from the pulmonry capilaaries comapres to hte loss of 3 L/day from the systemic capillaries?

0.5 L

Partial pressure

main skeletal muscle involved in making air move

diaphram

Boyles law

C

active expiration uses which two muscles

internal intercostals and abdominals

Pressure changes during quiet breathing

The iron Lung

B

Law of Laplace

What is surfactant?

C

More surfactant is on

small alveoli

Where can we change the diameter of airway

Bronchioles

Total pulmonary ventilation

what is dead space?

Alveolar ventilation

D

Normal levels for O2 and CO2 partial pressure

100 O2, 40 CO2

Why do the partial pressure stay the same?

D

Low oxygen → vasoconstriction in lungs **

in systemic the opposite

Restrictive lug diseases

B

D

A

Sensors for breathing rate

D

last watched mar 24