ch 20 smartbook missed questions

Question 1

the basal ______ is the non-cellular, proteinaceous material that surrounds the capillary endothelium and separates it from adjacent connective tissue

Answer 1

lamina

Question 2

choose all that make up the capillary wall

Answer 2

endothelium
basal lamina

Question 3

in some places short vessels called _______ link arterioles to capillaries or provide shortcuts that bypass the capillaries

Answer 3

metarterioles

Question 4

in continuous capillaries the endothelium forms a continous tube gel together by ______ junctions

Answer 4

tight

Question 5

choose all function of the arterial sense organs

Answer 5

monitor blood chemistry
monitor blood pressure

Question 6

continous capillaries

Answer 6

most tissues
ex. skeletal muscle

Question 7

fenestrated capillaries

Answer 7

organs that engage in rapid absorption or filtration of small molecules
ex. small intestine, kidenys

Question 8

sinusoids

Answer 8

areas where large proteins and cells need to enter or leave the bloodstream
ex. liver, spleen

Question 9

the basal lamina is a thin layer composed of which of the following

Answer 9

proteins and carbs

Question 10

which statement is true about pericytes

Answer 10

it is thought they can contract and regulate blood flow

Question 11

the diameter of some capillaries is even smaller than the diameter of a RBC

Answer 11

true

Question 12

capillaries that are especially important in organs that engage in rapid absorption or filtration are called ______ capillaries

Answer 12

fenestrated

Question 13

which term refers to short vessels that link arterioles to capillaries

Answer 13

metarterioles

Question 14

irregular blood-filled spaces in the liver, bone marrow, spleen, and some other organs are called _______

Answer 14

sinusoids

Question 15

the terms continous, fenestrated, and discontinous are used to describe the 3 types of what

Answer 15

capillaries

Question 16

which may regulate blood flow through the capillaries, and contribute to vessel growth and repair

Answer 16

pericytes

Question 17

capillaries are organized into networks called which of the following

Answer 17

capillary beds

Question 18

which type of capillary is especially important in organs that engage in the rapid absorption or filtration of small molecules such as the intestine and kidney

Answer 18

fenestrated

Question 19

which capillaries have filtration pores that allow small molecules to pass through their endothelial cells

Answer 19

fenestrated

Question 20

large molecules such as clotting proteins and albumin synthesized by the liver enter the blood through which of the following

Answer 20

sinusoids

Question 21

which is a function of precapillary sphincters

Answer 21

regulate blood flow to various areas

Question 22

in continous capillaries the endothelium forms a continous tube held together by _____ junctions

Answer 22

tight

Question 23

the type of blood vessel regarded as capacitance vessels are

Answer 23

veins

Question 24

what best defines a capillary bed

Answer 24

a network of capillaries supplied by a single arteriole or metarteriole

Question 25

post capillary venules are the smallest type of

Answer 25

vein

Question 26

blood flow into capillary bed is regulated by smooth muscle structures called _____ sphincters which surround the openings to the capillaries

Answer 26

precapillary

Question 27

rank the types of veins from smallest to largest

Answer 27

1. post capillary venules
2. muscular veins
3. medium veins
4. venous sinuses
5. large veins

Question 28

which type of venule receives blood from the post capillary venules

Answer 28

muscular

Question 29

which are regarded as the capacitance vessels because they expand easily to accommodate an increased volume of blood

Answer 29

veins

Question 30

valves that direct blood towards the heart are formed by infoldings of which layer of the vein wall

Answer 30

tunica interna

Question 31

where is smooth muscle found in large veins

Answer 31

in all 3 tunics

Question 32

which type of vessel receives blood from capillaries directly or by way of the distal ends of the thoroughfare channels

Answer 32

postcappilary venules

Question 33

veins that have become permanently distended and colvulted due to a loss of competence of the evenous valves are known as _________ veins

Answer 33

varicose

Question 34

Large veins have diameters greater than which of the following

Answer 34

10 mm

Question 35

How many layers of smooth muscle do muscular venules have

Answer 35

1 or 2