muscular pumps blood - MR. AITKEN'S CLASSlike a highway Chap 14 Sec 1 bring oxygen and nutrients...
Transcript of muscular pumps blood - MR. AITKEN'S CLASSlike a highway Chap 14 Sec 1 bring oxygen and nutrients...
March 05, 2014
cardiovascular system
like a highway Chap 14 Sec 1
bring oxygen and nutrients
takes away cellular waste
links all parts of body
contains cells to fight disease
heart
Chap 14 Sec 1hollowmuscular
pumps blood
March 05, 2014
atrium
upper chamber of heartChap 14 Sec 1
receives blood
pacemaker
in the right atriumChap 14 Sec 1
a group of heart cells
sends signal that makes heart muscles contract
March 05, 2014
ventricle
lower part of heart
Chap 14 Sec 1
pumps blood out to body
valve
separates atrium and ventricles
Chap 14 Sec 1a flap of tissue that prevents blood from flowing backward
March 05, 2014
artery
one of three kinds of blood vessels
Chap 14 Sec 1
carry blood away from heart
capillary
one of three kinds of blood vessels
Chap 14 Sec 1
smaller than arteries
exchanges substances between blood and cells
walls are one cell thick
March 05, 2014
vein
one of three kinds of blood vessels
Chap 14 Sec 1
blood comes from capillaries
carries blood back to the heart
aorta
artery connected to left ventricle
Chap 14 Sec 1
largest artery in body carries blood to the whole body
March 05, 2014
coronary artery
arteries that carry blood to heart muscles
Chap 14 Sec 1
artery walls are very thick
artery wall made of three layers
pulse
rise and fall of pressure in artery
Chap 14 Sec 1
artery wall expands and contracts
a measurement of heart beats
March 05, 2014
diffusion
material moves from area of higher concentration Chap 14 Sec 1
material moves to are of lower concentration
experiment with eggs, syrup, water and salt water
how blood, oxygen, nutrients and waste are exchanged
perfume in corner of room
blood pressure
blood pushes on blood vessel walls
Chap 14 Sec 1
caused by heart beat
measured with sphygmomanometer