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Revision 4 Biology
Beschreibung
Year 9, 10, 11 Biology Mindmap am Revision 4 Biology, erstellt von Ashley Hadfield am 25/04/2017.
Keine Merkmale angegeben
biology
biology
year 9, 10, 11
Mindmap von
Ashley Hadfield
, aktualisiert more than 1 year ago
Mehr
Weniger
Erstellt von
Ashley Hadfield
vor mehr als 7 Jahre
12
1
0
Zusammenfassung der Ressource
Revision 4 Biology
Lungs
1 cell thick
to reduce distance travelled
Via Diffusion
large surface area
increases rate of gas exchange
Moist
Gasses diffuse quicker in wet conditions
Rib cage
Protects:
Lungs
Heart
Diaphragm
separates lungs from lower body
Alveoli
where gas exchange takes place
Trachea
Carries air to lungs
has rings of cartilage
to keep the trachea open
Bronchus
transport air from trachea to bronchioles
Bronchioles
Carry air from bronchi to alveoli
large blood supply:
gas transport is quicker
Heart
left ventricle
left atrium
pulmonary vein
aorta
right ventricle
right atrium
vena cava
pulmonary artery
circulatory system
transports
oxygen
glucose
removes
water
Carbon dioxide
double circulatory system
Blood
oxygenated
to the body
deoxygenated
to the lungs
Blood vessels
artery
Thick walled
deep in body
high blood pressure
thick muscle and elastic layer
stretches and springs back
pumps blood to body
capillaries
1 cell thick
where substance exchange occurs
connects veins + arteries
veins
low blood pressure
thin walls
Lumen
takes blood to heart
thin muscle and elastic layer
smooth lining
the blood
red blood cells
carries oxygen
white blood cells
fight disease
plasma
carries substances in blood
platelets
clot a cut
coronary heart disease
Anmerkungen:
Exercise regularly, eat healthy, don't smoke, limit drinking alcohol, low fat diet
caused by coronary arteries being blocked
by fatty plaques of cholesterol
Statins
reduce amount of cholesterol in blood
blocks the action of an enzyme in the liver
work well on the elderly
stents
the stent is inserted into the artery
is expanded to widen the arteries
stent is then removed leaving the wire mesh behind
heart failure
options
artificial pacemaker
transplant
artificial heart
drugs
stents
surgery
heart transplant
better quality of life after transplant
when successful organ will last a few years
must be transplanted soon after being donated
has to be kept refrigerated
organ can be rejected
patients have to take drugs for the rest of their lives
artificial valves
when valves become leaky
blood can flow backwards
heart pumps faster
Health
health is a state of mental, physical and social well being
factors
astma
exercise
stress
smoking
cancer
alcohol
food allergies
mitosis
cell growth
repair
replace
cell genetically identical
cell division
sexual reproduction
alcohol
14 units a day
vomiting
alcohol poisoning
liver failiure
pass out
addictive
respiration
the production of energy
occurs in every cell
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