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CVS > cvs vasculature > Flashcards

cvs vasculature Flashcards

1
Q

lateral leads and blood supply

A

I, aVL, v5-v6
blood supply: Left circumflex artery, or diagonal of left anterior descending artery. (lcx,LAD)

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2
Q

Inferior leads and blood supply

A

II, III, aVF
Right coronary artery and or left circumflex artery

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3
Q

Anterior/septal leads and blood supply

A

v1-v4
Left anterior descending artery

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4
Q

left circumflex artery supplies

A

LA & LV

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5
Q

Left anterior descending artery (LAD) supplies

A

RV, LV and interventricular septum

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6
Q

Left marginal artery supplies

A

LV

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7
Q

Right marginal artery

A

right ventricle and apex

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8
Q

Right coronary: Region supplied

A

Right atrium
SA and AV nodes

Posterior part of interventricular septum (IVS)

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9
Q

Right coronary :Vein draining region

A

Small cardiac vein
Middle cardiac vein

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10
Q

Right marginal: Region supplied

A

Right ventricle
Apex

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11
Q

Right marginal: Vein draining region

A

Small cardiac vein
Middle cardiac vein

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12
Q

Posterior interventricular: region supplied

A

Right ventricle
Left ventricle

Posterior 1/3 of IVS

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13
Q

Posterior interventricular: draining region

A

Left posterior ventricular vein

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14
Q

Left coronary: region supplied

A

Left atrium
Left ventricle

IVS

AV bundles

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15
Q

Left coronary: draining region

A

Great cardiac vein

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16
Q

Left anterior descending: region supplied

A

Right ventricle
Left ventricle

Anterior 2/3 IVS

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17
Q

Left anterior descending: draining region

A

Great cardiac vein

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18
Q

Left marginal: region supplied

A

Left ventricle

19
Q

Left marginal: draining region

A

Left marginal vein
Great cardiac vein

20
Q

Circumflex: region supplied

A

Left atrium
Left ventricle

21
Q

Circumflex: draining region

A

Great cardiac vein

22
Q

inferior ecg leads changes and artery that is ocluded

A

II, III, aVF
RCA

23
Q

Anteroapical ecg leads changes and artery that is ocluded

A

V3 and V4
distal LAD

24
Q

Anteroseptal ecg leads changes and artery that is ocluded

A

V1 and V2
LAD

25
Q

Anterolateral ecg leads changes and artery that is ocluded

A

I, aVL, V5 and V6
Circumflex artery

26
Q

Extensive anterior ecg leads changes and artery that is ocluded

A

I, aVL, V2-V6
Proximal LCA

27
Q

True posterior ecg leads changes and artery that is ocluded

A

Tall R in V1
RCA

28
Q

S1

A

Mitral and tricuspid closure

29
Q

S2

A

Aortic and pulmonary

30
Q

The morphologic changes with normal aging of the heart.

A

decreased left ventricular chamber size
decrease in chamber length causes the ventricular septum to acquire a siqmoid shape,
increased interstitial connective tissue, lipofuscin pigment

31
Q

atheroembolism

A

cholesterol crystals break through and enter the circulation. typically occurs after invasive vascular procedure

32
Q

posteriomedial papillary muscle is supplied by

A

posterior descending artery, a branch of right coronary artery

33
Q

anteriolateral papillary muscle is supplied by

A

left anterior descending
left circumflex

34
Q

dobutamine

A

cardiac stress test
increases heart rate
used in the treatment of cardiogenic shock and severe heart failure.

35
Q

prinzmetal angina

A

Young age (50<)

Minimal CAD risk factors (other than
smoking)

Recurrent chest discomfort

o At rest or during sleep

o Spontaneous resolution <15 min
endothelial dysfunction

36
Q

mechanical complication of acute MI

A

1.Papillary muscle rupture/dysfunction (acute or within 3-5 days)
2.interventricular septum rupture acute or within 3-5 days
3.free wall rupture within 5 days or up to 2 weeks
4. left ventricular aneurysm up to several months

37
Q

clopidogrel

A

acts by inhibiting adenosine receptors, which inhibits the early step of platelet activation

38
Q

aspirin

A

inhibits platelet cyclooxygenase by irreversible acetylation, thereby preventing the formation of thromboxane A2 which is a powerful stimulant of platelet aggregation

39
Q

in Mobitz type 1 second-degree atrioventricular block. Which of the arteries is blocked?

A

right coronary

40
Q

morbitz type 1 second degree av block

A

also known as Wenckebach block, is characterized by a progressive lengthening of the PR interval until an atrial impulse is eventually blocked and a QRS complex is dropped.

41
Q

metalloproteinases function in atherosclerosis

A

Activated macrophages infiltrating the atheroma contribute to the breakdown of extracellular matrix proteins (eg, collagen)
by secreting metalloproteinases.

42
Q

Hydroxymethylglutaryl CoA reductase

A

Hydroxymethylglutaryl (HMG) CoA reductase is the rate-limiting enzyme in cholesterol synthesis and
is mostly expressed in the liver, intestine, adrenal cortex, and reproductive tissues. Patients with hyperlipidemia
are typically treated with statins (eg, atorvastatin), which competitively inhibit HMG CoA reductase.

43
Q

lysyl oxidase function

A

Lysyl oxidase is an enzyme that plays a crucial role in the formation and stability of connective tissues in the body, such as collagen and elastin.

44
Q

first step in the pathogenesis of atherosclerosis begins with which cells?

A

endothelial

CVS (1 decks)

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