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7 Cards in this Set

  • Front
  • Back
Capillary Types
Capillary Types:

1.) Continuous

2.) Fenestrated
-holes through capillary
-continuous basal lamina

3.) Discontinuous
-holes through capillary
-basal lamina discontinuous
Layers of Vessel Wall
Layers of Vessel Wall: (Out to In)

1.) Tunica Externa (Adventitia)
-Vasa Vasorum in large vessels

2.) Tunica Media
-vary composition of elastic fibers : smooth muscle
-Arteries Big to Small:
-Elasticity decreases
-Smooth muscle increases

3.) Tunica Intima

-cells around capillaries
-contractile function
-can function as stem cells for repair
Arteries vs. Veins
Arteries vs Veins

-thinner walls
-thicker lumen
-valves (folds of tunica intima)
Layers of Cardiac Wall
Layers of Cardiac Wall:

1.) Pericardium
a.) Parietal Layer
b.) Visceral Layer (epicardium)

2.) Myocardium
-thickest in left ventricle

3.) Endocardium
a.) Subendocardium - some texts say separate layer (between Endocardium & Myocardium)
-Purkinje fibers in ventricle subendocardium
Artery Pathology
Artery Pathology:

1.) Atherosclerosis (degeneration of walls)
2.) Aneurysm
3.) Stroke
4.) Vasculitis
Vein Pathology
Vein Pathology:

1.) Phlebitis (inflammation of vein, usually clot-associated)
2.) Varicose Veins (valve insufficiency)