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Biology
structure and functions in living organisms
Blood vessels,The Heart, Circulation, Coronary Heart Disease
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Cards (25)
what are the 3 main types of blood vessels ?
Arteries
,
veins
, and
capillaries
what is the structure of arteries ?
thick muscular
and
elastic wall
narrow lumen
high pressure
in arteries
what is the structure of the veins ?
thin muscular wall
wide lumen
low pressure
in veins
what is the role of the veins ?
carry
deoxygenated
blood (except for
pulmonary veins
) because they carry blood
away
from the heart
what is the role of the arteries ?
carry
oxygenated
blood (except
pulmonary
artery)because they carry
blood
to the heart
what are valves for and where are they ?
preventing any
backflow
of
blood
in the
veins
what is the structure of capilliaries ?
one cell thick
very
narrow lumen
red blood cells
in lumen
label this diagram of the heart
A)
aorta
B)
pulmonary vein
C)
left atrium
D)
heart valve
E)
left ventricle
F)
pulmonary artery
G)
vena cava
H)
right atrium
I)
heart valve
J)
tendons and heart wall
K)
right ventricle
11
what does the vena cava receive ?
deoxygenated blood
how many chambers is the heart divided into ?
4
which side of the heart receives oxygenated blood ?
Left
which side of the heart receives deoxygenated blood ?
Right
during exercise does our heart rate increase or decrease ?
increase
why does our heart rate continues at a fast rate after exercrise ?
adrenaline
carbon dioxide
needs to be removed
oxygen
needs to break down
lactic acid
what is an oxygen debt ?
Accumulated deficit
of
oxygen
in the body
during vigorous exercise do we respire aerobically or anaerobically ?
anaerobically
when pulmonary is mentioned what does it refer to ?
Lungs
when hepatic is mentioned what does it refer to ?
The liver
when renal is mentioned what does it refer to ?
Kidneys
label this circulation system diagram
A)
pulmonary artery
B)
pulmonary vein
C)
vena cava
D)
heart
E)
hepatic vein
F)
aorta
G)
hepatic portal vein
H)
hepatic artery
I)
renal vein
J)
renal artery
K)
mesentric artery
11
what are the risk factors of getting CHD ?
diet
obesity
lack of
exercise
stress
smoking
genetics
age
sex
how does CHD occur ?
blockage
to
coronary arteries
what may the coronary arteries becom blocked by ?
plaque
are coronary arteries inside or outside of the heart and what do they supply ?
outside
of the
heart
supplying
blood
what happens if you have a diet full of saturated fats ?
could lead to
CHD
because there will be
fatty deposits
forming inside the
arteries