Blood Vessels

Front 1

Transoprot blood away form the heart

Back 1

Arteries

Front 2

transport blood away form the arteries

Back 2

Arterioles

Front 3

Site of exhange

Back 3

Capillaries

Front 4

carry blood to the veins

Back 4

Venules

Front 5

carry blood to the heart

Back 5

veins

Front 6

what circuit is on the left ventircle,, aorta, body, superior/inferior vena cava right atrium

Back 6

systemic

Front 7

right ventricle--> pulmonary trunk/artery-->luns-->pulomonary veins-->left atrium

Back 7

Pulmonary circuit

Front 8

central cavity

Back 8

lumen

Front 9

innermost layer

Back 9

Tunica intima

Front 10

simple squamous epithelium

Back 10

Inner endothelial lining

Front 11

loose connective tissue, found in vessels 1 mm diameter

Back 11

Subendothelial layer

Front 12

middle layer

Back 12

Tunica Media

Front 13

contraction decreases in vessel diameter

Back 13

vasoconstriction

Front 14

relaxtion increases the vessel diamter

Back 14

vasodilation

Front 15

Tunica media is controlled by

Back 15

sympathetic ANS

Front 16

cirucuitly arranged sheets of elstin and collagen fibrils lie between muscle sheets... this contributes to what in the tunica media

Back 16

Elasticity and strength

Front 17

the tunica media is thicker in arteriesthan veins this is to...

Back 17

maintain and resist bld. pressure

Front 18

the outermost layer

Back 18

tunica externa

Front 19

in te tunica externa the cells and fibers run

Back 19

longitudinally

Front 20

the function of the tunica externa is

Back 20

protects the vessel, strengthen its wall and anchors the vessel

Front 21

Arteries carryy what type of blood in the systemic circuit?

Back 21

Oxygenated

Front 22

Arteries carry what type of blood to the pulmonary circuit?

Back 22

Deoxygenated

Front 23

the largest arteries

Back 23

elastic arteris

Front 24

elastic arteries possess diameter of?

Back 24

1-2.5 cm

Front 25

a large lumen in the elastic arteries allows for?

Back 25

low resistance conduction of blood

Front 26

these arteris lie distal, posess diameter of .3mm-1 cm

Back 26

muscular artereis

Front 27

in the muscular arteries this lies between tunica media and tunica and tunica intima

Back 27

internal elastic lamina

Front 28

muscualr arteries this sheet of elastin lies between tunica media and tunic externa

Back 28

external elastic lamina

Front 29

these are the smallest artereis

Back 29

arterioles

Front 30

the diameter of an arteriole is

Back 30

10micrometers to .3mm

Front 31

the largest arterioles posess?

Back 31

all 3 tunics an an internal elastic lamina

Front 32

the smalles possess a?

Back 32

single layer of smooth muscle and endothelium

Front 33

smallest blood vessel

Back 33

capillaries

Front 34

capillaries are composed of single layer of endothelial cells and strengthened and stabilzed by spider shaped cells called?

Back 34

pericytes

Front 35

what happens in the capillaries

Back 35

site of exchange between blood and body tissues or environment

Front 36

network of capillaries

Back 36

capillary bed

Front 37

these regulate te flow of blood into tissue in the cpillary beds

Back 37

precapillary sphincters

Front 38

what are the four ways that molecules can pass through capillaries

Back 38

1. diffusinon through
endothelieal cells
2. Passing through
intercellular clefts
3. Through pinocytic vesicles
and caveole (invaginations
of plasma membrane)
4. through fenestrations
(pores through the
endothelial cells)

Front 39

(types of capillaries)
endothelial cells lack pores, most comon type, found in skeletal muscle, skin, CNS

Back 39

Continuous

Front 40

(types of capillaries) endothelial cells posses pores, found where higher rate of exchange is needed. (ex. small intestine, kidneys, and synovialjoints)

Back 40

Fenestrated

Front 41

(types of capillaries)
possess wide gaps between cells and fenestrations present, found where extensive exchange takes place, (es.bone marrow and spleen)

Back 41

sinusoidal

Front 42

these posess a diamter of 9-100 micrometers the smalles posess endothelium and pericytes, largest posses all 3 tunics

Back 42

venules

Front 43

veins posses what, like arteries

Back 43

all 3 tunics

Front 44

what are the three differences compared to arteries

Back 44

1. Thinner walls,-> tunica
media thinner due to less
smooth muscle
2. Larger Lumen compared to
total vessel diameter
3. Large veins in appendiages
possess semilunar bicuspid
valves

Front 45

veins hole what percent of total blood volume?

Back 45

65%

Front 46

occurs when valves weaken and fail

Back 46

varicose veins

Front 47

occurs when blod vessels interconnect and form a Braded network, can occur in either arteris or veins

Back 47

vascular anastomoses

Front 48

little arteries, capillaries and veins in the walls of large artereis and veins, needed due to thckness of vessel wall

Back 48

vasa vasorum