ventilation

Question 1

what is ventilation

Answer 1

the mechanism of breathing

Question 2

what is the science term for breathing in

Answer 2

inspiration

Question 3

what is the science term for breathing out

Answer 3

expiration

Question 4

function of intercostal muscles in inspiration

Answer 4

contract

Question 5

function of rib cage in i

Answer 5

moves up and out

Question 6

function of diaphragm in i

Answer 6

contracts and moves up

Question 7

what does the movement of diaphragm and rib cage lead to i

Answer 7

volume in chest cavity increases, pressure in cavity decreases

Question 8

how does the air move down the respiratory system to alveoli i

Answer 8

down a pressure gradient from the high atmospheric air pressure to low chest cavity air pressure

Question 9

function of intercostal muscles in expiration

Answer 9

-external muscles relax

Question 10

function of rib cage in e

Answer 10

moves down and in

Question 11

function of diaphragm in e

Answer 11

relaxes and moves up

Question 12

what does the movement of the diagram and rib cage lead to

Answer 12

a decrease in volume but an increase in pressure in thoracic cavity

Question 13

how does air move up the respiratory system to atmosphere e

Answer 13

down a pressure gradient from high thoracic pressure to low air atmosphere gradient

Question 14

what are internal intercostal muscles used

Answer 14

in exercise

Question 15

why is extra air needed to be exhaled when exercising

Answer 15

due to increased rate of respiration in muscle tissue during exercise, extra carbon dioxide can be eliminated.