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KINS 294 > Unit 1: Circulatory System > Flashcards

Unit 1: Circulatory System Flashcards

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
Q
A

chordae tendineae

26
Q
A

aortic valve (semilunar)

27
Q
A

papillary muscle

28
Q
A

left ventricle

29
Q
A

interventricular septum

30
Q
A

right coronary artery

31
Q
A

left coronary artery

32
Q
A

great cardiac vein

33
Q
A

coronary sinus

34
Q

heart is enclosed by this

A

pericardial sac

35
Q

serous membrane, includes vessels and nerves

A

epicardium

36
Q

muscular wall of heart

A

myocardium

37
Q

endothelial tissue and connective tissue

A

endocardium

38
Q
A

apex

39
Q

carry blood away form heart to tissues

A

arteries

40
Q

-smaller branches of arteries
-major resistance vessels

A

arterioles

41
Q

-smaller branches of arterioles
-smallest of vessels across which all exchanges are made with surrounding cells

A

capillaries

42
Q

-formed when capillaries rejoin
-return blood to heart

A

venules

43
Q

-formed when venules merge
-return blood to heart

A

veins

44
Q
A

tunica externa

45
Q

(looking at letter E)

A

tunica media

46
Q

refers to narrowing of a vessel

A

vasoconstriction

47
Q

-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

A

vasodilation

48
Q

-return of excess filtered fluid to blood
-defense against disease
-transport of absorbed fat

A

lymphatic system

49
Q

-small, blind-ended terminal lymph vessels
-permeate almost every tissue of the body

A

initial lymphatics

50
Q

interstitial fluid that enters a lymphatic vessel

A

lymph

51
Q

-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

A

lymph vessels

52
Q

thin flaplike valves spaced at short intervals within veins permit blood to flow one way toward the heart

A

venous return

53
Q

valves within veins become defective and fail to maintain the one-way blood flow, thus blood pools in these veins

A

varicose veins

54
Q

pacemaker of the heart

A

sinoatrial node

55
Q

sends impulse from atria to ventricles

A

atrioventricular node

56
Q
A

bundle of His

57
Q
A

purkinje fibers

58
Q
  1. SA node
  2. Atria
  3. AV node
  4. AV bundle
  5. Left and right bundle branches
  6. Purkinje fibers
  7. Ventricles
A

Cardiac impulse flow

59
Q

-red blood cells
-important in O2 and CO2 transport

A

erythrocytes

60
Q

-white blood cells
-immune systems mobile defense units

A

leukocytes

61
Q

-cell fragments
-important in hemostasis (preventing blood loss from a broken blood vessel)

A

platelets

61
Q

-cell fragments
-important in hemostasis (preventing blood loss from a broken blood vessel)

A

platelets

KINS 294 (15 decks)

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