respiration Flashcards
1
Q
tidal volume
A
volume of air inhaled and exhaled in a normal breath
2
Q
vital capacity
A
the grand come of all the air that can enter and exit the lungs except residual volume
3
Q
residual volume
A
gas that always remains in the lungs
- keeps the lungs from collapsing on themselves
4
Q
gases (exchange)
A
diffuse from areas of high to low levels of partial pressure
5
Q
ventilation
A
inhalation + exhalation
6
Q
capillary
A
- single cell thick
- surrounds alveolus
- where blood circulates
7
Q
external respiration
A
- in the alveoli
- oxygen enters the blood and CO2 diffuses from the blood into the alveolus
8
Q
red blood cells
A
- filled with hemoglobin which binds with O2 to create oxyhemoglobin
9
Q
oxyhemoglobin
A
- forms in red blood cells
- oxygen and hemoglobin
- releases O2 to the blood with in the tissues
10
Q
internal respiration
A
- within the tissues
- O2 leaves capillary for tissue cells
- CO2 diffuses from tissues to the capillaries of the blood
11
Q
CO2 disguising
A
- dissolved in plasma
- attaches to hemoglobin and forms carbaminohemoglobin
12
Q
medulla oblangata
A
- in the brain
- signals the diaphragm to increase the rate of inspiration and exhalation
- has chemoreceptors that are sensitive to low pH
- increases the rate of excretion of carbon dioxide
13
Q
carotid artery
A
uses chemoreceptors to deflect low O2
- slower than acid receptors
14
Q
volume of air inhaled and exhaled in a normal breath
A
tidal volume
15
Q
the grand sum of all the air that can enter and exit the lungs except residual volume
A
vital capacity
