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BIO 212 Lab > Lab 6 - Heart > Flashcards

Lab 6 - Heart Flashcards

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Biology 101 flashcards
1
Q

mediastinum

A
  • in the thoracic cavity; not symmetrical
  • need pic
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2
Q

pericardial sac

A
  • sac that encloses the heart
  • need pic
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3
Q

fibrous pericardium

A
  • tough connective tissue
  • need pic
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4
Q

parietal layer of serous pericardium

A
  • outer layer of the sac
  • need pic
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5
Q

visceral layer of the pericardium

A
  • inner layer of the sac
  • need pic
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6
Q
A

Right auricle

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7
Q
A

Left auricle

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8
Q
A

Coronary sulcus

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9
Q
A

Anterior interventricular sulcus

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10
Q
A

Posterior interventricular sulcus

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11
Q
A

Apex

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12
Q
A

Base

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13
Q
A

Superior vena cava

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14
Q
A

Right atrium

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15
Q
A

Tricuspid valve

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16
Q
A

Right ventricle

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17
Q

What is the valve between the right ventricle and the

pulmonary trunk?

A

Pulmonary semilunar valve

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18
Q
A

Pulmonary trunk

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19
Q
A

Left pulmonary vv.

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20
Q
A

Left atrium

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21
Q
A

Bicuspid valve

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22
Q
A

Left ventricle

23
Q

What is the valve between the left ventricle and the

ascending aorta?

A

Aortic semilunar valve

24
Q
A

Ascending aorta

25
Q
A

Interventricular septum

26
Q
A

Interatrial septum

27
Q
A

Chordae tendinae

28
Q

What do the chordae tendinae attach

to on the inside of the ventricular wall?

A

papillary muscle

29
Q

What do cells that have pacemaking potential do?

A

They depolarize by themselves.

30
Q
A

P wave – Atrial depolarization

31
Q
A

QRS complex – Ventricular depolarization

32
Q
A

T wave – Ventricular repolarization

33
Q
A

inferior vena cava

34
Q
A

Pulmonary artery

35
Q
A

aortic arch

36
Q
A

epicardium

  • outermost layer of the heart
37
Q
A

myocardium

  • middle layer of the heart (cardiac muscle)
38
Q
A

endocardium

  • innermost layer of the heart
39
Q
A

intercalated discs

  • connect cardiac muscle cells
  • propagate action potentials
40
Q
A

Left coronary a.

41
Q
A

Circumflex a.

42
Q
A

Anterior interventricular a.

43
Q
A

Right coronary a.

44
Q
A

Posterior interventricular a.

45
Q
A

Marginal a.

46
Q
A

Great cardiac vein

47
Q
A

middle cardiac vein

48
Q
A

small cardiac vein

49
Q
A

coronary sinus

50
Q
A

—SA node

In the posterior wall of the right atrium

—Near opening of vena cava

—This is the hearts natural pacemaker

51
Q
A

AV node—

Located in the floor of the right atrium

—Receive impulses from the internodal pathways

52
Q
A

—AV bundle

From the AV node, impulses enter the ventricles through the AV bundle

—Left and right bundle branches

53
Q
A

—Purkinje fibers

Deliver impulses to cardiac muscle cells in the ventricles

—Lead to ventricle contraction

BIO 212 Lab (16 decks)

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