Chapter 4 Review Questions Flashcards Preview

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Flashcards in Chapter 4 Review Questions Deck (28):
1

What is the function of the vasa vasorum?

to supply needed material to nearby cells in vessel wall

2

Which major luminal wall layer is thickest/most dominant within elastic arteries?

tunica media

3

What is the tunic media primarily made of in elastic arteries?

fenestrated elastic laminae and smooth muscle

4

Which major luminal wall layer is thickest/most dominant within muscular arteries?

tunica media

5

What is the tunica media primarily made of in muscular arteries?

smooth muscle

6

Which major luminal wall layer is thickest/most dominant within arterioles?

tunica media

7

What is the tunica media primarily made of in arterioles?

smooth muscle

8

Why is the endothelium of the tunica intima prone to develop problems in elastic arteries?

fast moving luminal blood

9

What general tissue type makes up the tunica adventitia of arteries?

CT

10

Which type of artery has the most developed internal elastic lamina?

muscular artery

11

Which is the thinnest of the major luminal wall layers in arteries?

tunica intima

12

Which type of artery has the thickest tunica intima?

elastic artery

13

Which type of artery is most likely to have degeneration of its tunica intima?

elastic artery

14

Identify whether it's metarteriole or AVA:
lacks a true tunica media

metarteriole

15

Identify whether it's metarteriole or AVA:
thicker tunica media and tunica adventitia

AVA

16

Identify whether it's metarteriole or AVA:
associated with vessels called thoroughfare channels

metarterioles

17

Identify whether it's metarteriole or AVA:
found with all capillary beds

metarterioles

18

Identify whether it's metarteriole or AVA:
redirects much blood away from capillary beds

AVA

19

Identify whether it's metarteriole or AVA:
which enables the functioning of erectile tissues?

AVA

20

Which type of vessel will divert blood away from capillary beds?

AVA

21

Which type of vessel allows for the pulsing of blood through true capillaries?

metarterioles

22

Which cell type, with reparative potential, is found exterior to capillaries and venules?

pericytes

23

Which cell types can pericytes change into?

fibroblasts, endothelial cell, smooth muscle

24

Do lymphatic capillaries have pericytes?

No

25

Do lymphatic capillary endothelial cells join together using tight junctions?

No

26

Why do lymphatic capillary endothelial cell have attached anchoring filaments?

support the tiny endothelial cell openings to allow interstitial fluid to enter and leave lymph capillaries

27

Do medium and large lymphatic vessels have 3 major luminal wall layers? If so, what are the layer names?

Yes; tunica intima, tunica media, tunica adventitia

28

In general, the structure of lymphatic vessels most closely resembles that of... (hint: another blood vessel type)

veins