4237731
Descripción
Mapa Mental por Aarushi Pandit, actualizado hace más de 1 año
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Creado por Aarushi Pandit
hace casi 9 años
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ARTERIES
- Take blood away from heart.
- Wall has three layers
- Inner endothelium or tunica intima
- flat cells/ squamous epithelium
- smooth, minimising friction with the moving blood
- flat cells/ squamous epithelium
- tunica media or middle coat
- smooth muscle, collagen and elastic fibres
- smooth muscle, collagen and elastic fibres
- tunica externa or outer coat
- elastic and collagen fibres
- elastic and collagen fibres
- Its elasticity and strength are distinctive charecteristics
- evens out the flow of blood
- reduces the likelihood that they will burst
- evens out the flow of blood
- Inner endothelium or tunica intima
- Largest
- Aorta
- average diameter 2.5 cm
- wall thickness 2mm
- blood pressure around 120 mm Hg or 16 kPa
- average diameter 2.5 cm
- Aorta
- arteries further away from the heart have fewer elastic
fibres in the tunica media but have more muscle fibres
- further branches
into arterioles
- walls have more
smooth muscle
- helps control the volume of
blood flowing into a tissue at
different times
- blood pressure is around 85mm Hg or 11.3kPa
- walls have more
smooth muscle
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