organisation in animals Flashcards
what do arterys do
carries oxygenated blood away from the heart at high blood pressure
what do capillarys do
exchange subastances
what do veins do
carries deoxygenated blood towards the heart at a low blood pressure
what is coronary heart disease
when layers of fatty material build up in teh conoary arteries
what is plasma
liquid component in the blood that carries everthing around the body
what does the red blood cell do
carries oxygen bound to haemoglobin around the body
what does the white blood cell do
produces anibodies, antitoxins and carrys out phagocytosis to break down harmfull product
what do platelets do
start the blood clotting process
what is an organ
a group of tissues that work together to peform a certain function
what is a tissue
a group of cells that work together to peform a certain function
what happens to the air we breath in
it goes through the trachea and splits into 2 tubes called the bronchi
where does gas exchange happen in the lungs
aveoli
what is a double circulatory system
2 circuits joined together
is the atrium at the top or botom part of the heart
top
is the ventricles at the top or bottom part of the heart
bottom
