the bv

Question 1

three major luminal wall layers found in almost all bv, which are a continuation of the hearts histo layers

Answer 1

tunica intima
tunica media
tunica adventitia

Question 2

• tunica intima is a continuation of the __
• tunica media continuation of __
• tunica adventitia continuation of ___

Answer 2

endocardium
mycardium
epicardium

Question 3

elastic arteries AKA

-eg aorta, common iliacs, carotid, brachiocephalic, subclav

Answer 3

conducting arteries

Question 4

in elastic art. tunica intima is composed of

• attenuated ___
• thin/incomplete internal elastic lamina
• thicker __ with elastic fibers, collagen I, fibroblasts, smooth musc

Answer 4

endothelium

CT

Question 5

in elastic a. tunica media is made primarily of ___ sheets of elastic fibers w/ some collagen I & smooth musc

• poss thin external elastic lam
• outer usually has __ __

Answer 5

fenestrated

vasa vasorum

Question 6

in elastic a. tunica adventitia is made of loose fibroelastic ct and ___ ___ are numerous

Answer 6

vasa vasorum

Question 7

muscular arteries aka

-eg brachial, radial, renal, femora

Answer 7

distributing arteries

Question 8

musc a. tunica intima is very __,

• endothelium
• some CT, a few __ musc cells
• __ elastic lamina

Answer 8

thin
ct
internal

Question 9

musc a tunica media is most dominant and thickest, and primarily ___ ___ muscle and richly innervated with ___ so it has a strong cnxn over a sm area

Answer 9

circular smooth

sympathetics

Question 10

musc a. tunica adventitia is fibroelastic ct w/ sulfated __

• fibroblasts
• vasa vasorum : small bv

Answer 10

GAGs

Question 11

in arterioles, the tunica intima has no __ elastic lamina, and the tunica media has no __ elastic lamina
-tunica adventitia is sim to musc a.

Answer 11

internal

elastic

Question 12

thickest most dom wall layer in arteriole

Answer 12

tunica media

Question 13

what gen tissue type makes up the tunica adventitia of areries

Answer 13

ct

Question 14

which type of artery has most developed internal elastic lamina

Answer 14

muscular a.

Question 15

which is the thinnest of the major luminal wall layers in arteries

Answer 15

tunica intima

Question 16

short terminal arteriole branches that lack a true tunica media, lead to capillaries and a thoroughfare that lead to venules

Answer 16

metarterioles

Question 17

thicker tunica media and adventitia with many ANS nerves that functions to control lumen size and amt of blood into caps

Answer 17

AVA (arteriovenous anastomosis)

Question 18

blood flow into caps is controlled by

• metarterioles
• ___
• lumen size of terminal arterole
• pre-capillary ___

Answer 18

AVAs

sphincters

Question 19

caps are made of a single layer of flattened __ cells and have __ vessicles that form tiny pockets thru cyto to move large molecules

Answer 19

endothelial

pinocytic

Question 20

__ ___ is the cell jxn found bt endothelial cells that moves macromolecules and allows cell movement

Answer 20

fasciae occludens

Question 21

MC cap type found in muscle, CT, many organs and follows gen struct

Answer 21

continuous

Question 22

considered residual mesenchyme cells that are numerous on caps and venules and can secrete BM and matrix componens

Answer 22

pericytes

Question 23

pericytes can __ and change into endothel cells, smooth musc, and fibroblasts

Answer 23

divide

Question 24

pericytes function to ___ and regulate ___ flow maybe

Answer 24

heal

blood

Question 25

__ __ cap in CNS with zonula occludens instead of FO, barrier reg by endothelium but influenced by astrocytes

Answer 25

modified continuous

Question 26

fenestrated caps are found in the pancreas, ___, and __ organs and are pores w/ thin protein diaphragm containing 8 fibrils -allow greater movement

Answer 26

intestines | endocrine

Question 27

____ caps are in bone marrow, liver, spleen, lymph organs and some endocrine organs

Answer 27

sinusoidal

Question 28

__ caps have enlarged diameter, large fenestrae, no prot diaphragm and function for enhanced xchange bt __ & tissue

Answer 28

sinusoidal | blood