histology - circulatory system

19 cards

slide notes for exam.


 
  
Created Dec 11, 2009
by
ejberg

 

 
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1
circulatory flow
 
elastic arteries
to
muscular arteries
to
arterioles
to
capillaries
to
postcapillary...
2
blood vessel composition (3 layers)
 
1 - tuncia intima
2 - tunica media
3 - tunica adventitia
3
tunica intima
 
*delimits the vessel wall towards the lumen of the vessel and comprised its endothelial lining...
4
tunica media
 
*formed by a layer of circumferential smooth muscle and variable amounts of connective tissue
*a...
5
tunica adventitia / externa
 
* outter most layer; surrounds tunica media
*consists mainly of connective tissue fibers...
6
arteries
 
*3 types (large elastic, medium muscular, small arteries/arterioles)
*specialization of...
7
elastic arteries
 
*large
*tunica intima of elastic arteries thicker than in other arteries
*layer of subendothelial...
8
vasa vasorum
 
blood vessels in tunica adventitia that nourish cells of tunica media and tunica adventitia
9
muscular arteries
 
*tunica media thinner than in elastic arteries
*subendothelial connective tissue other than...
10
arterioles
 
*diameter less than 0.1 to 0.5mm
*endothelium still rests on internal elastic lamina -...
11
capillaries
 
*sum of diameters of all capillaries is significantly larger than that of the aorta - which...
12
pericytes 
 
*@capillaries
*incomplete layer of cells surrounding capilaries
*contractile properties
*regulate...
13
veins
 
*walls of veins are thinner than walls of arteries
*diameter is larger than that of arteries
*layering...
14
vein valves
 
*loose, pocket-shaped folds of tunica intima
*extends into the lumen of the vein
*opening...
15
lymphatic vessels
 
parts of the blood vessels with exude from the blood vessels into the surrounding tissues because...
16
lymph capillaries
 
*larger than blood capillaries
*very irregularly shaped
*begin as blind-ending tubes...
17
lymph vessel
 
*formed from merging lymph capillaries
*larger than lymph capillaries - though otherwise...
18
lymph ducts
 
*one or two layer of smooth muscle cells in wall
*form vales
*movement of lymph toward...
19
thorasic duct
 
largest lymph duct, 5mm in diameter, drians lymph from the lower half and upper left quadrant...

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