Health (2) -Respitory System

Front 1

function of the respitory system

Back 1

gas exchange between you and your environment

Front 2

external respiration

Back 2

exchange of gases b/t your lungs and your bloodstream

Front 3

internal respiration

Back 3

exchange of gases b/t your blood and body cells

Front 4

what is the movement of air into lungs?

Back 4

1.nasal cavity
2.pharynx
3.epiglottis
4.larynx
5.trachea/windpipe

Front 5

nasal cavity (3)

Back 5

1. air iswarmed and cleaned by mucas membranes and cilia
2. mucas adds moisture to lungs
3. all upper air passages are lined w/ mucas membranes

Front 6

trachea and bronchi (3)

Back 6

1.lined w/ a mucas membrane and covered w/cilia
2.cilia are alwasy moving, keeping foreign particles from reaching lungs
3.trachea extends into teh chest and divides into 2 branches called bronchi or bronchile tubes - leads to lungs

Front 7

lungs are enclosed by

Back 7

pleura - enclose/protect with 2 layers of membranes

Front 8

lungs are divided into..

Back 8

lobes (right has 3, left 2)

Front 9

each bronchi form tubes called

Back 9

bronchioles

Front 10

what are at the end of each bronchiole?

Back 10

thin walled air sacs = alveoli

Front 11

alveoli are surrounded by

Back 11

capillaries

Front 12

what happens in the alveoli?

Back 12

exchange of O2 and CO2

Front 13

what is the movement of O2 and CO2?

Back 13

O2 moves from alevoli to bloodstream, CO2 moves from bloodstream to alveoli to be exhaled

Front 14

diaphragm

Back 14

muscle separating chest and abdominal cavites

Front 15

what happens in the diaphragm?

Back 15

air gets drawn into lungs by diaphragm and chest cavity

Front 16

process of inhaling (diaphragm)

Back 16

1.all rib muscles contract
2.diaphram moves down
3.ribs pulled up and out
4.air comes into lungs

Front 17

process of exhaling (diaphragm)

Back 17

1.diaphragm relaxes and moves up
2.ribs move inward