Lecture 5 - Structure of Blood Vessels I Flashcards Preview

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Flashcards in Lecture 5 - Structure of Blood Vessels I Deck (13):
1

Layers of blood vessel?

tunica intima, tunica media, tunica adventitia

2

Characteristic of elastin in Elastic artery TM?

fenestrated

3

TI proportion in muscular arteries?

10% - increased in hypertension

4

Components of TI?

endothelium, connective tissue (elastin), internal elastic lamina

5

Components of TM?

collagen, elastin, smooth muscle, external elastic lamina (muscular arteries only)

6

Components of TA?

collagen and elastin fibres, nerves, vasovasorum, lymphatics

7

Histoloy of artherosclerosis

endothelial damage, intima thickening, S.M migrate to intima, macrophage accumulate lipid turning into foam cells

8

Berry aneurysm common location?

a branching points, usually brain (Circle of Willis)

9

Dissecting aneurysm common locations?

thoracic and abdominal aorta

10

Dissecting aneurysm pathology?

bloo pooling in media, weakness of intima

11

Risk factors of hypertension?

obesity, salt, smoking, stress

12

Hypertension histology?

intima and media thickening, IEL duplication

13

Unique histological characteristics of arterioles?

no EEL (less requirement from small flow volumes) and 2-3 SM layers in media