ly.
2006-12-02 12:15:29 · 7 answers · asked by Ariana 2 in Science & Mathematics ➔ Biology
as simple and as general as i can explain it...
deozygenated blood is pumped out of the left ventricle via the pulmonary tract going up to the capillaries in the lungs where gas exchange (CO2/O2) occurs making the blood oxygenated. it then goes down to the right ventricle via pulmunary vein and then it is pumped out of the right ventricle into the capillaries in different parts of the body (head, arms, legs, other organs...) where gas exchange occurs again and the blood becomes deoxygenated. that deoxygenated goes back to the left ventricle again and the cycle just goes on and on til you die.
2006-12-02 12:22:45 · answer #1 · answered by Anonymous · 2⤊ 0⤋
A: you draw air into your lungs where your red bloodcells pass co2 out and pickup o2 through a membrane on the lungs interior surface.
B: your heart is a 4 chambered pump with a series of one-way valves in it as each chamber contracts it pushes the blood to the next chamber (no the 4 chambers are NOT in series they work as 2 pairs left and right as i recall) then out into the blood vessels and body.
2006-12-02 13:37:44 · answer #2 · answered by P W 5 · 0⤊ 0⤋
R) The brain signals the diaphragm to move and draw air into your lungs then to force the air out of your lungs. It is involuntary.
C) The blood picks up O2 and drops off CO2 at the lungs. It moves to the digestive tract and picks up food. Then is goes to the excretory system to drop off waste. It circulates to the cells to exchange food and O2 for waste and CO2 then the heart pumps it back to start the cycle again.
2006-12-02 12:25:43 · answer #3 · answered by physandchemteach 7 · 0⤊ 0⤋
Respiratory -- breath in, breathe out.
Circulatory system -- The cells in vessels go round and round, round and round, round and round.
Beyond that, you'll have to do your own homework. And tell the teacher to get better questions.
2006-12-02 12:24:06 · answer #4 · answered by geek49203 6 · 0⤊ 0⤋
depends on wat grade you r in
R= you brethe in air it goes through the wind pipe and then Trachea then it goes to the Bronchus and finnaly reaches the lungs. It then goes into a Alveolus(which is located in the lungs) where it reaches the blood vessels. the rest you breate out
c= i need a change sorry i am not in the mood to answer.
2 points i am comming
2006-12-02 12:59:13 · answer #5 · answered by coolgirljuhi 1 · 0⤊ 0⤋
when u breathe in, oxygen goes into ur lungs when u breathe out, carbon dioxide goes out of ur lungs
2006-12-02 16:08:24 · answer #6 · answered by DA W 1 · 0⤊ 0⤋
Do you want me to explain it shortly?
2006-12-02 12:22:41 · answer #7 · answered by Anonymous · 0⤊ 0⤋