Bio-Respiratory System

Front 1

basic function of human respiratory system

Back 1

to bring about the exchange of oxygen and carbon dioxide between the blood, the air and tissues

Front 2

pharynx

Back 2

throat, serves as a passageway for air and food

Front 3

trachea

Back 3

windpipe; tube through which air moves

Front 4

larynx

Back 4

voice box; structure in throat containing vocal cords

Front 5

bronchus
(plural bronchi)

Back 5

passageway leading from the trachea to a lung

Front 6

alveoli

Back 6

tiny air sacs that at the ends of bronchioles in the lungs that provide surface area for gas exchange to occur

Front 7

diaphragm

Back 7

large, flat muscle at the bottom of the chest cavity that helps with breathing

Front 8

emphysema

Back 8

loss of elasticity in the tussues of the lungs, also causes a decrease in surface area of the alveoli, makes breathing difficult and vpeople w/ emphysema cannot get enough oxugen to body tissues or rid the body of excess carbon dioxide

Front 9

nicotine

Back 9

stimulant drug in tobacco that increases heart rate and blood pressure

Front 10

bronchitis

Back 10

bronchi become swollen and clogged w/ mucus, causes bronchi to tighten and makes air hard to pass through

Front 11

lung cancer

Back 11

cancer cells spread throughout body, 160,000 Americans are diagnosed each year and few survive 5 years after diagnosis

Front 12

nose

Back 12

cleans/fliters, moistens and warms air

Front 13

epiglottis

Back 13

flap of tissue that covers the trachea when you swallow because the food hits it and causes it to cover to trachea in order to block food or drink from entering the trachea

Front 14

what does the cartilage around the trachea do?

Back 14

the cartilage around the trachea keeps the tube open, like framework, so that air can constantly pass through

Front 15

#of sections in each lung &why

Back 15

right lung-3
left lung-2 because the heart is on the left side and takes up space where a 3rd section could potentially be

Front 16

bronchioles

Back 16

branches of bronchi in lungs

Front 17

mucus

Back 17

a thin layer of mucus coats the walls of all tubes to keep air clean and moist

Front 18

how is carbon dioxide stored in blood?

Back 18

70% of blood's carbon dioxide changes into bicarbon ion which floats it the plasma and changes it back to carbon dioxide before diffusing into lungs; 20% in red blood cells; 10% in plasma

Front 19

what does hemoglobin carry?

Back 19

carbon dioxide, carbon monoxide, oxygen
-carries carbon monoxide as a priority

Front 20

inhalation, how it happens

Back 20

diaphragm contracts(moves down), volume of chest goes up, air pressure in chest goes down, forcing air in

Front 21

exhalation, how it happens

Back 21

diphragm relaxes(moves up), volume of chest goes down, air pressure in chest goes up, forcing air out

Front 22

asthma

Back 22

usually triggered by allergic reaction, tubes in respiratory system become inflamed and tubes become narrower, harder to breathe
--inhalers open up tubes

Front 23

pnuemonia

Back 23

lungs fill up with fluid

Front 24

cilia

Back 24

cilia sweeps away dust, dirt and other particles

Front 25

how is breathing rate regulated in humans?

Back 25

the medulla oblongata detects when there is too much carbon dioxide in the blood and will increase the breathing rate

Front 26

gas exchange

Back 26

capillaries surround the alveoli. carbon dioxide diffuses out of the capillaries and into the alveoli and are breathed out. oxygen diffuses from the alveoli into the blood

Front 27

smoking

Back 27

smoking causes respiratory problems and can kill you