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KINS 294 > Unit 1: Circulatory System > Flashcards

Unit 1: Circulatory System Flashcards

(62 cards)

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1
Q

-to deliver oxygen and nutrients to all tissues and to remove CO2 and other waste products
-body temp regulation
-transport of hormones

A

Cardiovascular System Functions

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2
Q

-heart
-blood vessels
-blood

A

Components of cardiovascular system

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3
Q

fluid in which cells and platelets are suspended; contains various solutes including electrolytes and proteins

A

Plasma

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4
Q

contain hemoglobin, which carries O2 and CO2

A

Erythrocytes (red blood cells)

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5
Q

participate in immune and defense-related functions

A

Leukocytes (white blood cells)

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6
Q

participate in blood clotting

A

platelets (throbocytes)

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7
Q

closed loop of vessels carrying blood between heart and lungs

A

pulmonary circulation

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8
Q

circuit of vessels carrying blood between heart and other body systems

A

systemic circulation

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9
Q

striated and voluntary muscle

A

skeletal muscle

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10
Q

striated and involuntary muscle

A

cardiac muscle

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11
Q

unstriated and involuntary muscle

A

smooth muscle

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12
Q
A

intercalated disk

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13
Q
  1. Superior and inferior vena cava
  2. Right atrium
  3. Right AV valve
  4. Right ventricle
  5. Pulmonary valve
  6. Pulmonary trunk, pulmonary arteries, capillaries of lungs, and pulmonary veins
  7. Left atrium
  8. Left AV valve
  9. Left ventricle
  10. Aortic valve
  11. Aorta
  12. Systemic arteries, arterioles, capillaries, venules, and veins
A

Blood flow

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14
Q
A

aorta

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15
Q
A

superior vena cava

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16
Q
A

pulmonary valve (semilunar)

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17
Q
A

pulmonary veins

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18
Q
A

right atrium

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19
Q
A

right AV (tricuspid) valve

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20
Q
A

right ventricle

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21
Q
A

inferior vena cava

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22
Q
A

pulmonary artery

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23
Q
A

left atrium

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24
Q
A

left AV valve (bicuspid or mitral)

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25
chordae tendineae
26
aortic valve (semilunar)
27
papillary muscle
28
left ventricle
29
interventricular septum
30
right coronary artery
31
left coronary artery
32
great cardiac vein
33
coronary sinus
34
heart is enclosed by this
pericardial sac
35
serous membrane, includes vessels and nerves
epicardium
36
muscular wall of heart
myocardium
37
endothelial tissue and connective tissue
endocardium
38
apex
39
carry blood away form heart to tissues
arteries
40
-smaller branches of arteries -major resistance vessels
arterioles
41
-smaller branches of arterioles -smallest of vessels across which all exchanges are made with surrounding cells
capillaries
42
-formed when capillaries rejoin -return blood to heart
venules
43
-formed when venules merge -return blood to heart
veins
44
tunica externa
45
(looking at letter E)
tunica media
46
refers to narrowing of a vessel
vasoconstriction
47
-refers to enlargement in circumference and radius of vessel -Results from relaxation of smooth muscle layer -Leads to decreased resistance and increased blood flow through that vessel
vasodilation
48
-return of excess filtered fluid to blood -defense against disease -transport of absorbed fat
lymphatic system
49
-small, blind-ended terminal lymph vessels -permeate almost every tissue of the body
initial lymphatics
50
interstitial fluid that enters a lymphatic vessel
lymph
51
-formed from convergence of initial lymphatics -eventually empty into venous system near where blood enters right atrium -one way valves spaced at intervals direct flow of lymph toward venous outlet in chest
lymph vessels
52
thin flaplike valves spaced at short intervals within veins permit blood to flow one way toward the heart
venous return
53
valves within veins become defective and fail to maintain the one-way blood flow, thus blood pools in these veins
varicose veins
54
pacemaker of the heart
sinoatrial node
55
sends impulse from atria to ventricles
atrioventricular node
56
bundle of His
57
purkinje fibers
58
1. SA node 2. Atria 3. AV node 4. AV bundle 5. Left and right bundle branches 6. Purkinje fibers 7. Ventricles
Cardiac impulse flow
59
-red blood cells -important in O2 and CO2 transport
erythrocytes
60
-white blood cells -immune systems mobile defense units
leukocytes
61
-cell fragments -important in hemostasis (preventing blood loss from a broken blood vessel)
platelets
61
-cell fragments -important in hemostasis (preventing blood loss from a broken blood vessel)
platelets

KINS 294 (15 decks)

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