microanatomy of the vascular system L11

Question 1

3 layers of all vessels

Answer 1

tunica interna
tunica media
tunica externa

Question 2

inner lining of blood vessels

Answer 2

tunica interna

Question 3

inner most layer of tunica interna

Answer 3

endothelium

Question 4

epithelium of endothelium

Answer 4

simple squamous

Question 5

3 parts of tunica interna

Answer 5

endothelium
basal lamina
internal elastic lamina

Question 6

tunica media=

Answer 6

muscular and connective tissue layer

Question 7

what is the primary function of smooth muscle cells

Answer 7

regulating diameter of lumen

Question 8

what separates the tunica media from the tunica externa

Answer 8

external elastic lamina (part of tunica media)

Question 9

what is the outer covering of blood vessels

Answer 9

tunica externa (adventitia)

Question 10

what does the tunica adventitia hold

Answer 10

vaso vasorum
lymphatics
autonomic nerves

Question 11

what does blood pressure depend on

Answer 11

cardiac output and peripheral resistance

Question 12

what determines resistance

Answer 12

blood viscosity and dimensions of the vessels

Question 13

what are large arteries also called

Answer 13

elastic arteries

Question 14

in small arteries what is there more off

Answer 14

smooth muscle

Question 15

what are small arteries also known as

Answer 15

muscular arteries

Question 16

3 types of capillary

Answer 16

continous
fenestrated
discontinuous

Question 17

what is almost absent in capillaries

Answer 17

tunia media

Question 18

most common capillary

Answer 18

continous

Question 19

what are fenestrated capillaries

Answer 19

endothelium has pores for exchange, they appear regularly

Question 20

where are fenestrated capillaries common

Answer 20

tissues with high exchange function (e.g small intestine0

Question 21

what are discontinuous capillaries

Answer 21

gaps between endothelial cells as well as regular fenestrations

Question 22

where are discontinuous capillaries found

Answer 22

where cell as well as molecular exchange happens (liver, spleen)

Question 23

veins are lacking a

Answer 23

internal elastic lamina

Question 24

veins have a relatively thin

Answer 24

tunica media for lumen size