345276
Description
Mind Map by waitelisa739, updated more than 1 year ago
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Created by waitelisa739
about 11 years ago
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The Heart
- Heart
Disease
- Atheroma
- A region of plaque in the lining of the
CA can lead to (T), (M) + A)
- A region of plaque in the lining of the
CA can lead to (T), (M) + A)
- Thrombosis (T)
- blood clot
- blood clot
- CHD biggest killer in the UK
- Aneurysm (A)
- Balloon shape in the Coronary Artiery
- Balloon shape in the Coronary Artiery
- myocardial infaction (M)
- Interputed blood flow
- heart attack
- Interputed blood flow
- Risk Factors
- Smoking
- Carbon
monoxide
- Combines with
haemoglobin
- reduces amount of blood transported
- Combines with
haemoglobin
- Nicotine
- Carbon
monoxide
- Blood
Cholestral
- LDL's
- Mainly triglycerides + cholesterol
- too much
will be
deposited in
damaged
coronary
arteries
- Leads to
a plaque
- Leads to
a plaque
- Mainly triglycerides + cholesterol
- HDL's
- High Energy
- Reduces plaque
- High Energy
- builds cell membranes
- LDL's
- High Blood
pressure
- Could be a blockage
- Could be a blockage
- diet
- high saturated fat levels
- high salt
levels
- high saturated fat levels
- Smoking
- Atheroma
- Structure
- Coronary
arteries
and
veins
- Provides the heart with blood
- Provides the heart with blood
- Atrium
- Ventricles
- Thick muscle than atria as
pumps blood longer distance
- Thick muscle than atria as
pumps blood longer distance
- Atrio-ventricular valves
- Stops blood from flowing back
- Stops blood from flowing back
- Aorta
- Carries oxygenated blood to the rest of the
body -thick and stretchy and links to the LV
- Carries oxygenated blood to the rest of the
body -thick and stretchy and links to the LV
- Vena Cava
- carries deoxygenated blood to
the heart and links to RA
- carries deoxygenated blood to
the heart and links to RA
- Pulmonary
vein and
artery
- PA carries deoxygenated blood to
the lungs to be oxygenated, PV
carries oxygenated blood to the heart
- PA carries deoxygenated blood to
the lungs to be oxygenated, PV
carries oxygenated blood to the heart
- Cords
- to stop the valves
folding the wrong way
- to stop the valves
folding the wrong way
- Semi lunar valves
- stops the blood flowing back
- stops the blood flowing back
- Coronary
arteries
and
veins
- Cardiac cycle
- Diastole
- relaxed
- relaxed
- Sistole
- contract
- contract
- 1) SAN cells in top right atrium sends electrical signal for the
atria to contract
- 2)non conductive layer of tissue stops the transition to the
ventricles but it hits the AVN
- 3) when it hits it trigger the AVN cells to produce another electrical signal
- 4) down the bundle of His causing the ventricles to contract
- 4) down the bundle of His causing the ventricles to contract
- 3) when it hits it trigger the AVN cells to produce another electrical signal
- 2)non conductive layer of tissue stops the transition to the
ventricles but it hits the AVN
- Diastole
- Pressure
- LV has high
presssure
needed to
pump blood
a long
distance
- LV has high
presssure
needed to
pump blood
a long
distance
- Cardiac output
- Cardiac output = heart rate x stroke volume
- The volume of blood pumped by one ventricle in one minute
- HR = number of beats per minute
- SV = the volume of blood pumped each heart beat
- increases with exercise (cardiac output)
- The volume of blood pumped by one ventricle in one minute
- Cardiac output = heart rate x stroke volume
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