Chapter 13 Flashcards

(86 cards)

1
Q

the vessels that carry blood from arterioles to venules are

A

capillaries

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2
Q

the vessels that carry blood from the heart to capillaries are

A

arteries

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3
Q

the vessels that carry blood from capillaries to the heart are

A

veins

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4
Q

what is the lining of the arteries and veins and what is it made of

A

tunica intima and it is made of simple squamous epithelial

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5
Q

what is the function of the tunica intima

A

the smoothness prevents blood clotting

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6
Q

what is the middle layer of arteries and veins and what is it made of

A

tunica media and is made of smooth muscle and elastic connective tissue

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7
Q

what is the function of the tunica media

A

help maintain diastolic blood pressure

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8
Q

what is the outer layer of arteries and veins and what is it made of

A

tunica externia and is made of fibrous connective tissue

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9
Q

what is the function of the tunica externa

A

prevents the rupture of blood vessels

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10
Q

middle layer is thick because these vessels are important in the maintenance of blood pressure

A

arteries

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11
Q

the lining is not folded into valves

A

arteries

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12
Q

the outer layer is thick to prevent rupture by the high blood pressure in these vessels

A

arteries

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13
Q

the outer layer is thin because blood pressure is low

A

veins

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14
Q

the lining is folded into valves to prevent backflow of blood

A

veins

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15
Q

the middle layer is thin because these vessels are not as important in the maintenance of blood pressure

A

veins

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16
Q

direct connections between arteries or veins are called

A

anastomoses

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17
Q

what is the purpose of anastomoses

A

provide alternate pathways for flow of blood if one vessel becomes blocked or obstructed

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18
Q

what type of tissue is capillaries made of

A

simple squamous epithelium

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19
Q

why are capillaries are smooth and thin

A

to prevent abnormal clotting and thin to permit exchanges of materials between the blood and surrounding cells

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20
Q

blood flow through capillary networks is regulated by what

A

smooth muscle cells called precapillary spincters

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21
Q

in active tissue precapillay blood will do what

A

dilate to increase blood flow to supply tissues with more oxygen

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22
Q

large permable capillaries are called what

A

sinusoids

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23
Q

proteins and blood cells can enter or leave sinusoids which are found in

A

liver spleen and red bone marrow

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24
Q

molecules move from greater area of concentration to a lesser area of concentration

A

diffusion

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25
co2 moves from tissue fluid into the blood
diffusion
26
oxygen moves from the blood to tissue fluid
diffusion
27
high blood pressure at the arterial end of capillary networks forces plasma out of capillaries
filtration
28
nutrients move from the blood into the tisssue fluid
filtration
29
albumin in the blood creates a colloid osmosis pressure that pulls water and dissolved materials
osmosis
30
waste products move from tissue fluid into the blood
osmosis
31
in the pulmonary circulation the pathway begins where? what does it pump blood through?
rigtht ventricle,pulmonary artery to the lungs
32
blood in pulmonary veins returns to the
left atrium
33
what is the purpose of the pumonary pathway
exchange oxygen and carbon dioxide between the blood in pulmonary capillaries and in the alveoli of the lungs
34
where does the systemic circulation pathway begin
left ventricle and pumps blood through aorta to the body
35
blood in thr superior and inferior caval veins returns
to the right atrium
36
what is the purpose of the systemic circulation pathway
exchange materials between the blood in the systemic capillaries and the cells throughout body
37
below the level of the diaphragm
abdominal
38
emerges from the left ventricle
acsending
39
passes through the chest cavity tobthe level of the diaphragm
thoracic
40
curves the top of the heart
aortic arch
41
coronary artery
heart
42
femoral artery
thigh
43
brachial artery
arm
44
bronchial artery
bronchioles
45
internal carotid artery
brain
46
renal artery
kidneys
47
hepatic artery
liver
48
intercoastal artery
chest wall
49
anterior tibial artery
lower leg
50
subclavian artery
shoulder
51
radial artery
forearm
52
superior mesenteric artery
small intestine
53
esophageal artery
esophagus
54
vertebral artery
brain
55
celiac artery
abdominal organs
56
popliteal artery
knee
57
common iliac artery
hip
58
plantar arches artery
foot
59
external jugular vein
neck
60
axillary vein
armpit
61
great saphenous vein
leg and thigh
62
inferior vena cava vein
lower body
63
common iliac vein
hip
64
ulnar vein
forearm
65
cranial venous sinuses
brain
66
superior vena cava
upper body
67
renal vein
kidney
68
subclavian vein
shoulder
69
brachial vein
arm
70
femoral vein
thigh
71
site of exchange of materials between fetal blood and material blood and what are some of the materials exchanged
placenta. oxygen co2 and nurtients and waste products
72
processes of exchange
diffusion or active transport
73
fetus is connected to placenta by the umbilical cord which contains what
2 umbilical arteries and 1 umbilical vein
74
umbilical arteries carry blood from
fetus to placenta
75
within the body of the fetus the umbilical vein branches into how many vessels
2
76
the first branch of umbilical vein takes blood where
fetal liver
77
the second branch of umbilical veins is called what and where does it take blood
inferior vena cava which returns blood to the right atrium of the fetal heart
78
within the fetal heart what is an opening in the interatrial septum that permits some blood flow frombthe right atrium to the left atrium
foramen ovale
79
within the foreman ovale flow what does the blood do
bypass the fetal lungs
80
what is just outside the fetal heart and is a short vessel that permits blood to flow from the pulmonary artery to the aorta
ductess arterious
81
what is the purpise of the ductus arteriosus
permits most fetal blood to bypass the lungs
82
after birth what does the ductus venosus do
constricts and becomes nonfunctional
83
after birth what happens to the foramen ovale and the ductus arteriosus
the foraman ovale is closed by a flap on the left side and the ductus constricts . this ensures normal pulmonary circulation will be established
84
what happens to the velosity of blood flow when a cross sectional area of the vascular system increases
decreases
85
what is venous return
the amount of blood that returns to the heart
86
venous return is essential to maintain what
cardiac output