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17 Cards in this Set
- Front
- Back
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What is lymph? |
Excess extracellular fluid |
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Function of lymphatic vascular system? |
Returns lymph to blood vascular system |
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Types of arteries (3) |
1. Elastic (conducting) 2. Muscular (distributing/medium) 3. Arterioles |
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Diameter of macrovasculature |
>0.1mm |
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Diameter of microvasculature |
<0.1mm |
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Three layers of arteries and veins are: (in order from inside to outside) |
Tunica intimia Tunica media Tunica adventitia |
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Composition of tunica intima (3) |
Endothelium Internal elastic lamina Sub-endothelial connective tissue |
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Composition of tunica media in muscular arteries + elastic(3) |
Smooth muscle cells concentrically arranged (muscular) Elastic: replaced by elastic fibres or mix External elastic lamina |
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Composition of tunica adventitia (2) |
Fibroelastic connective tissue (longitudinally arranged) Adipose tissue Blends in with surroundings ct |
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Endothelium is made of |
Single layer of squamous epithelial cells |
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Vasa vasorum are prevalent in: |
Veins because they contain elss oxygen and nutrients |
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Diameter of capillaries |
8-10um Fenstrated (60-80nm) Sinusoidal (30-40um) |
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Approx length of capillaries |
50um |
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Types of veins |
Small (venules) Medium Large |
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BBB composed of |
Tight endothelium Astrocytes Pericytes Microglia |
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Blood air barrier composed of |
Cytoplasm of alveolar cells Cytoplasm of endothelial cells Fused basal laminae of alveolar/endothelial cells |
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Kidney filtration barrier composed of |
Endothelium of fenestrated capillary Specialised basal lamina Podocytes |
