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respitory system

what needed for gas exchange?

large surface area(alveoli

how do we warm the air?

with our blood !

how do we moisten the air

with mucus

how fo we clean the air

nose hairs(cillia) and mucus

what is the pharynx for?

its the common tube for air and food

what is the epiglottis for?

it prevents food from going into the trachea

what is the larynx

our voice box!

what is the trachea?

its windpipe?

what does the trachea have?

cartilaginous rings for support

what is apart if the upper respitory tract

pharynx, epiglottis, larynx, nasal cavity, oral cavity, nostrils

what is apart of the lower respitory tract

trachea, bronchi, lungs, bronchioles, capillaries, alveoli

what happenes in the capillaries when air goes through

it starts with low O2 and High CO2; as oxygen goes through, by the end the blood should he oxygen rich

what is the diaphragm

its a dme shaped mucle!

what are the intercostal muscles(rib mucles)

its the mucles in between each rib

what happens to the diaphram when we breathe

the diaphragm expands (goes down and outward)

what happens to the diaphragm when we exhale

the diaphragm comes together(goes up and inward)

what does air always do?

it always moves from high to low pressure!

what is the pressure gradient when exhaling

high to low - chest activity to atmostphere

what is the pressure gradient when inhaling

high to low - atmostsphere to chest actuvity

whag can we use ti measure lung capacity

spirigraphy

what is tidal volume

a normal breathe

what is inspitory reserve

extra air we can inhale

what is expitory reserve

extra air we can exhale

what is vital capacity

regular breathe, extra in, extra out

what is residual volume

the remaining gas in the lungs to prevent collaping

what is internal respiration

blood to tissue/organs/mucles

what is external respiration

lungs to blood

O2 always...

goes in!

CO2 always...

GOES OUT

what dies the hemoglobin do?

helps O2 dissolve better in the blood

what do chemoreceptors do?

detect chemical levels! (creates carbonic acid when CO3 dissolves)

what happens when ur pH levels rises

incrwase in breathing rate

what are the 4 types of breathing

breathing, internal respiration, external respiration, cellular respiration

what is breathing

process where air enters and leaves the lungs

celluar respiration is

the production of ATP im body cells

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