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Beschreibung
Mindmap von Hannah Vernon-Browne, aktualisiert more than 1 year ago
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Erstellt von Hannah Vernon-Browne
vor etwa 9 Jahre
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The Circulatory System
- Blood Flow
- Vena Cava
- Right Atrium
- Right Ventricle
- Pulmonary Artery
- Lungs
- Pulmonary Vein
- Left Atrium
- Left Ventricle
- Aorta
- Rest of the Body
- Vena Cava
- Vena Cava
- Rest of the Body
- Aorta
- Left Ventricle
- This is the only
vein to have
oxygenated blood
- Left Atrium
- Pulmonary Vein
- This is the only
artery to have
deoxygenated
blood
- Lungs
- Pulmonary Artery
- Right Ventricle
- Right Atrium
- Red =
oxygentated
blood
- Blue =
deoxygenated
blood
- Purple =
diffusion
of oxygen
- Vena Cava
- Blood Vessels
- Arteries
- Narrow lumen
- Maintains high pressure
- Maintains high pressure
- Thicker Walls
- To be able to cope
with higher pressure
- To be able to cope
with higher pressure
- More collagen
- Collagen is a tough, fibrous
protein in the arterial walls that
makes them strong & durable
- Collagen is a tough, fibrous
protein in the arterial walls that
makes them strong & durable
- Smooth
Muscle Cells
- Allow them to
constrict & dilate
- Allow them to
constrict & dilate
- Elastic Fibres
- Allow it to
stretch & recoil
- Allow it to
stretch & recoil
- No Valves
- The blood is of a high pressure and constantly
being pushed forwards, so there is no need to
use valves to prevent backflow
- The blood is of a high pressure and constantly
being pushed forwards, so there is no need to
use valves to prevent backflow
- Narrow lumen
- Veins
- Wide Lumen
- This allows more
blood flow at the lower
pressure of the veins
- This allows more
blood flow at the lower
pressure of the veins
- Thinner Walls
- There is a lower
pressure
- There is a lower
pressure
- Less Collagen
- They are under
lower pressure
- They are under
lower pressure
- Less Smooth
Muscle Cells
- The veins do not need
to be able to stretch
and recoil as much
- The veins do not need
to be able to stretch
and recoil as much
- Fewer Elastic
Fibres
- They are under low
pressure so require
less elastic fibres
- They are under low
pressure so require
less elastic fibres
- Valves
- Prevent
backflow due to
low pressure
- Prevent
backflow due to
low pressure
- Wide Lumen
- Capillaries
- Found in
muscles
& lungs
- Supply
oxygen
- Take away
Carbon
Dioxide
- Supply
oxygen
- Thin walls -
1 cell thick
- Access to
every cell
in the body
- Access to
every cell
in the body
- Very low
blood
pressure
- The thin walls
can't cope with
higher pressure
- The thin walls
can't cope with
higher pressure
- Gas exchange
occurs here
- Supply substances to
every cell in the body
- Supply substances to
every cell in the body
- Found in
muscles
& lungs
- Arteries
- Labelled Heart Diagram
- The aorta is an artery that carries
oxygenated blood around the body
- The pulmonary artery carries
deoxygenated blood to the lungs
- The left atrium contracts to pump
oxygenated blood into the left ventricle
- The pulmonary vein carries
oxygenated blood into the left atrium
- The semi-lunar valves stop backflow of blood from the
aorta and pulmonary artery back into the ventricles
- The left ventricle contracts to pump
oxygenated blood into the aorta
- The heart wall has 3 layers:
- Epicardium
- External layer
- Attached to
pericardium (membrane
surrounding heart)
- Thin & transparent
- Made of delicate
connective tissue
- Attached to
pericardium (membrane
surrounding heart)
- External layer
- Mycocardium
- Middle layer
- Responsible for
pumping action
- Made out of
cardiac muscle
- Responsible for
pumping action
- Middle layer
- Endocardium
- Inner layer
- Thin layer
endothelium
- Provide smooth lining for
chambers & covers valves
- Thin layer
endothelium
- Inner layer
- The right ventricle contracts to
pump deoxygenated blood into
the pulmonary atrtery
- The atrioventricular valves (tricuspid/bicuspid)
prevent backflow of bloof back into the atria
- The inferior vena cava is a vein that
carries deoxygenated blood from the lower
region of the body to the right atrium
- The right atrium contracts
to pump deoxygenated
blood into the right ventricle
- The superior vena
cava is a vein that
carries blood from
the top region of the
body to the right
atrium
- The superior vena
cava is a vein that
carries blood from
the top region of the
body to the right
atrium
- The right atrium contracts
to pump deoxygenated
blood into the right ventricle
- The inferior vena cava is a vein that
carries deoxygenated blood from the lower
region of the body to the right atrium
- The atrioventricular valves (tricuspid/bicuspid)
prevent backflow of bloof back into the atria
- Epicardium
- The heart wall has 3 layers:
- The left ventricle contracts to pump
oxygenated blood into the aorta
- The semi-lunar valves stop backflow of blood from the
aorta and pulmonary artery back into the ventricles
- The pulmonary vein carries
oxygenated blood into the left atrium
- The left atrium contracts to pump
oxygenated blood into the left ventricle
- The pulmonary artery carries
deoxygenated blood to the lungs
- The aorta is an artery that carries
oxygenated blood around the body
Medienanhänge
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