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Anatomy 211 > Cardiovascular Part 2 > Flashcards

Cardiovascular Part 2 Flashcards

1
Q

What does R-ATRM contain anteriorly?

A

Right auricle

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2
Q

What does R-ATRM contain posteriorly?

A

sinus venram

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3
Q

What is sinus venarum?

A

smooth walled part of atrm

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4
Q

location of sinus venarum?

A

posteriorly of muscular ridge

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5
Q

what empties into sinus venarum?

A

1-vena cava (both)
2-coronary sinus

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6
Q

What is the crista termanlis

A

a muscular ridge

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7
Q

What is the function of crista terminalis?

A

separates anterior & posterior parts of R-Atrm

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8
Q

wdym by separating post&ante of R-Atrm

A

seperating cardiac & smooth muscles

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9
Q

how is crista terminalis indicated externally

A

by sulcus terminalis

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10
Q

where is the right auricle located?

A

anterior to crista terminalis

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11
Q

R-auricle attributes

A

roughens by muscle fibers

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12
Q

muscle fibers in auricle are called

A

pectinate muscles

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13
Q

Function of interatrial spetum

A

separate the 2 atriums

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14
Q

Location of inreratrial spetum

A

posteriorly left to R-Atrium

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15
Q

What is the fossa ovalis?

A

remnant of fetal foreman ovale

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16
Q

location of fossa ovalis

A

right atrium on the interatrial spetum

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17
Q

fossa ovalis are like

A

fingerprint

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18
Q

location & function of superior vena cava

A

opens in upper R-atrm, returns blood from upper body

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19
Q

location & function of inferior vena cava

A

opens in lower R-atrm, returns blood from lower half body

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20
Q

location & function of coronary sinus

A

opens in lower R-atrm, near IVC
returns blood from walls of heart

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21
Q

location & function of right atrioventricular orifice

A

anterior to IVC opening
Leads to R-vent
guarded by tricuspid valve

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22
Q

Right ventricle forms most of

A

sternocostal/anterior surface

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23
Q

Name 2 structural differences between R-vent & R-atrm

A

1-R-vent thicker walls
2-R-vent have irregular muscular ridges

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24
Q

What are the irregular muscular ridges in R-vent called?

A

trabeculae carneae “fleshy beams”

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25
Q

What is the infundubulim?

A

Funnel shaped,
the outflow tract of R-vent
gives rise to Pulmonary Trunk

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26
Q

another name for conus arteriosus?

A

infundibulum

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27
Q

What are the spetomarginal trabeculae?

A

1-free band of cardiac muscle
2- connects intervent spetum to ant. papillary muscles
3-crosses vent cavity

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28
Q

what are the papillary muscles?

A

1-3 irregular muscle bundles,
2-line vent walls except conus arterious
3- connect vent wall to atriovent valve

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29
Q

name papillary muscles of R-vent

A

Anterior
Posterior
Spetal

30
Q

What are the chordae tendinea?
origin?
insert?

A

1-Slender threads that connect papillary to surface of tricuspis
2-origin from pap muscles
3-insert into free ridges & surface of cusps

31
Q

location of the tricuspid valve?

A

between R-vent & R-atrm

32
Q

right atrioventricular valve is formed

A

by 3 fibrous cusps

33
Q

function of tricuspid valve?

A

Blocks reflux of blood into R-atrm When R-vent contracts

34
Q

Location of pulmonary valve

A

apex of infundibulum

35
Q

Pulmonary valve formed by

A

3 semilunar cuspus, concave from above

36
Q

Function of Pulmonary valve?

A

open to prevent backflow of blood when vent relaxes

37
Q

L-Atrm forms most of

A

posterior/base surface

38
Q

What is the left auricle

A

appendage of L-atrm

39
Q

L-auricle contains

A

musculi pectinati

40
Q

Pectinate muscles are in

A

only the auricle

41
Q

What is the smooth wall portion of L-atrm

A

inflow portion, in the posterior half, receives 4 pulm veins

42
Q

L-vent forms for

A

apex of heart, has thickest walls

43
Q

Why does the L-vent has the thickest muscular walls?

A

Cuz it pumps blood further than R-vent

44
Q

Where is the bicuspid valve?

A

between L-Atrm & L-vent

45
Q

Mitral valve is formed by?

A

1-anterior cusp
2-posterior cusp

46
Q

Function of bicuspid valve?

A

blocks backflow of blood to L-atrm, wehn L-vent contract

47
Q

How many papillar muscles Left vent conatins

A

1-Anterior papillary muscle
2-Posterior papillary muscle

48
Q

Papillar muscles of L-vent connects to

A

mitral valve

49
Q

Chordae tendineae in left vent to right vent

A

Thicker but less numerous

50
Q

Aortic valve structure is

A

similar to pulmonary valve

51
Q

aortic sinuses located

A

deep to cusps of the aortic valves

52
Q

aortic sinuses (left&right) give rise to

A

R&L coronary arteries

53
Q

Relationship between aortic & pulmonary valves

A

open & close together

54
Q

Relationship between the two atrioventricular valves

A

open &close together

55
Q

Mitral & tricuspid valves function

A

prevents backflow of blood to atrm

56
Q

vessels are a system

A

closed system begins and ends in heart

57
Q

types of vessels are

A

arteries, capillaries, & veins

58
Q

Arteries always

A

carry blood away from heart

59
Q

veins always

A

carry blood towards the heart

60
Q

capillary functions?

A

1-contact tissue to serve cell needs
2-joins arteries & veins
3-gas & nutrient exchange

61
Q

arteries become

A

arterioles when they feed into capillaries

62
Q

when veins come closer to heart

A

they become larger

63
Q

Layers of arteries & veins

A

1-Tunica interna/intima (deepest)
2-Tunica media
3-Tunica externa/adventitia (superficial in comparison)

64
Q

What are the elastic arteries?
another name for them?

A

Directly or close to heart
conducting arteries

65
Q

name elastic arteries

A

1-Aorta
2-Common cortoid
3-subclavian
4-pulmonary trunk

66
Q

Distributing arteries located?
another name?

A

distal to elastic
Muscular arteries

67
Q

examples of muscular arteries

A

1- external&internal cartoids
2-Brachial
3-femoral
4-renal
5-splenic

68
Q

How many structural types of capillaries? and what are they?

A

3
1-Continues
2-Fenstered
3-Discontinous

69
Q

Features of each type of capillaries

A

1-Cont.= complete basal lamina& continuous endothelial lining
2-Fenestred= complete basal lamina& fenestred endothelial lining
3- Discontinous= incomplete basal lamina& fenestred endothelial lining

70
Q

Venules formed

A

when capillary bess unite

71
Q

Veins made from

A

union of venules

72
Q

whats unique to veins?

A

1-Large lumens=little resistance to blood flow
2-valves= to prevent backflow blood

Anatomy 211 (6 decks)

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