Vascular Histology Flashcards
1
Q
Identify the black lines.
A
- Arranged layers of smooth muscle
- External elastic membrane
- Elastin
- Tunica media
- Tunica adventitia
2
Q
Identify
A
- Vasa vasorum
- Nervi vasorum (vascularis)
3
Q
Identify
A
- Lumen
- Endothelium
- Basal lamina
- Subendocardial layer
- Internal elastic membrane
4
Q
A
- Elastic fibers
- Loose CT, Vessels
- Thin (arterial system) to thick (venules/veins)
5
Q
Identify.
A
- Decrease
- Increase
6
Q
Identify
A
- Elastin
- No Fibroblasts
7
Q
Identify
A
- Medium (muscular) artery
- Tunica media is thinner with not as much elastin
- Prominent internal elastic membrane becomes apparent
- External elastic membrane present
- Smooth muscle cells arranged in spiral fashion, produce ECM components
- Tunica adventitia, same thickness as tunica media
8
Q
A
- Small arteries have up to 8 layers and have internal elastic membrane
- Arterioles have 1-2 layers and internal elastic membrane may or may not be present
- Vasoconstriction
-
Vasodilation
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9
Q
Identify the arrowed structures.
A
- Top arrow: Artery (Tunica media is much thicker)
- Bottom arrow: Arteriole
10
Q
Identify the terms.
A
- Capillary beds
- Site of metabolic exchange
- Pericytes; contractile cells with branching cytoplasmic processes
- Controlled by NO
- Promote stability of capillaries and postcapillary venules
11
Q
Identify the types of capillaries
A
- Continuous
- Fenestrated
- Discontinuous
12
Q
Identify the arrowed structures/
A
Left image=continuous capillary
Middle images-fenestrated capillaries
Right image=discontinuous capillary
13
Q
Identify the arrowed tissues.
A
- Postcapillary venule
- Arteriole
- Bottom image=muscular venule
- Left image=small vein (tunica adventitia)
14
Q
Identify the circled images.
A
Left=medium veins
Right=large veins
15
Q
Identify.
A
- Collecting lymphatic venules
- valves
- Walls increase in thickness as vessel increases in size
- Continuous tight junctions to prevent leakage
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