hi Flashcards
parts of the chest
ribcage,lungs and diaphram
what happens when you inhale
your diaphram moves down
your ribs move up and out
your chest cavity expands
air moves in
what happens when you exhale?
your diaphram moves up
your ribs move down and in
your chest cavity gets smaller
air moves out
why does food need to be digested?
to break down foods into nutrients which the body uses for energy, growth and cell repair
the chambers of the heart
right atrium
left atrium
right ventricle
left ventricle
what does the artery do?
carries blood to the body
what is the function of an artery?
carries blood away from heart
what is the function of a vein?
carries blood towards heart
function of the mouth?
breaks food down into smaller particles in saliva to lubricate food for swallowing
function of oesophegus/gullet?
carries food from moutch to stomach
function of your stomach?
contains acid and enzymes which mix and break food
function of small intestiene?
allows small soluble food molecules to pass into blood
function of large intestiine
absorbs water and salt from faeces
what is in the breathing system?
nose, mouth, lungs, diafram, ribcage
what is peak flo?
maximum speedyou can force air out of lungs measured with peak flo metre
what physical characteristics affect peak flo
gender
age
height
what is a spirometre?
a piece of apparatus used to meausre lung capacity and volume of airbreathed out
what is vital capacity?
maximum volumeof air a person can breath after big breath in
why does breathing rate increase when excersising ?
to deliver more oxygen to ur blood and produce more energy for muscle contractions
9 organs of digestive system
mouth oesophagus/gullet stomach small intetsien pancreas liver large intestine rectum anus
what is the pancreas
produces enzymes to break down food
what does the liver do
breaks down poisonous food and makes bile
what does the rectum do
stores feaces
what does the anus do
allows faeces to leave the body.
