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Cross Sectional Anatomy > The Heart > Flashcards

The Heart Flashcards

1
Q

Where is the right margin of the heart located?

A

Lateral to sternal edge

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2
Q

Where is the apex of the heart located?

A

5th intercostal space, medial to mid-clavicular line

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3
Q

Where is the arch of aorta located?

A

Level of sternal angle (manubrio-sternal joint), where the 2nd rib forms a joint

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4
Q

What is the right margin of the heart mainly formed by? (ant. view of heart)

A

right atrium

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5
Q

What is the left margin of the heart formed by?

A

Auricular appendage of left atrium but mainly left ventricle

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6
Q

The inferior border of the heart is formed by the r____ v_____ & apex of l____ v____

A

right ventricle

left ventricle

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7
Q

What forms the bulk of the anterior surface of the heart?

A

right ventricle

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8
Q

What separates the right atrium from the right ventricle?

A

vertical atrioventricular groove

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9
Q

What separates the left ventricle from the right ventricle?

A

Anterior inter-ventricular groove

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10
Q

What veins does the right atrium receive?

A

superior vena cava in upper part

inferior vena cava & coronary sinus in lower part

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11
Q

What’s the name given to the distinct muscular ridge running downwards between the venae cavae?

A

crista terminalis

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12
Q

What type of valves guard the openings of the inferior vena cava & coronary sinus?

A

rudimentary valves

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13
Q

What valve joins the right atrium to the right ventricle?

A

tricuspid valve

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14
Q

What valve joins the pulmonary trunk and the right ventricle?

A

pulmonary valve

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15
Q

A muscular ridge the i________ c_____ between the atrioventricular & pulmonary orificaes separates inflow & outflow tracts of the ventricle

A

infundibulventricular crest

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16
Q

The inner aspect of the inflow tract path is marked by what irregular muscular elevations?

A

Trabecular carneae

17
Q

What structure allows for the attachment of the cusps of the tricuspid valve and papillary muscle?

A

chordae tendinae

18
Q

What valve connects the left atrium to the left ventricle?

A

mitral valve

19
Q

The aortic orificae is guarded by ____ semilunar cusps of the ____ valve

A

3

aortic

20
Q

What arteries lie at the level of t5?

A

Right & left pulmonary arteries

21
Q

What arteries supply the heart?

A

left and right coronary arteries

22
Q

Where do the coronary arteries’ main branches lie?

A

inter ventricular & atrioventricular grooves

23
Q

Where do the coronary arteries arise from? (a____ s___)

A

Aortic sinuses

24
Q

How many aortic sinuses are there? Name these

A

Left, right & posterior sinuses

25
Q

Which sinus gives rise to the left coronary artery?

A

left sinus

26
Q

Which sinus gives rise to the right coronary artery?

A

right sinus

27
Q

What happens at systole?

A

blood is ejected from left ventricle to rest of body

28
Q

What happens during diastole?

A

coronary sinuses fill with blood

29
Q

At what stage (diastole/systole) does the aortic valve close?

A

diastole

30
Q

Where does the right coronary artery anastomose with the left coronary artery?

A

posterior inter-ventricular groove

31
Q

Whats the most important branch of the left coronary artery?

A

anterior interventricular artery (left anterior descending artery)

32
Q

What does the anterior inter-ventricular artery supply?

A

the anterior aspect of both ventricles

33
Q

What are 2 common coronary artery diseases?

A

Angina pectoris

myocardial infarction

34
Q

What do the cardiac veins follow the course of?

A

Coronary arteries

35
Q

Where is the coronary sinus located?

A

Posterior part of atrioventricular groove

36
Q

Name the 3 cardiac veins

A

Great, middle & small cardiac veins

37
Q

Which chamber of the heart does the coronary sinus drain into?

A

right atrium

Cross Sectional Anatomy (6 decks)

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