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Anatomy and Physiology > Coverings and Walls of the Heart > Flashcards

Coverings and Walls of the Heart Flashcards

1
Q
  • Anchors the Heart with the surrounding structures (i.e. diaphragm, sternum)
  • Loosely fitting part of the sac
  • Outermost layer of the covering
A

Fibrous Pericardium

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2
Q

aka epicardium

A

visceral pericardium

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3
Q

Sac that encloses the heart that is made up of three layers

A

Pericardium

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4
Q

innermost layer of the pericardium

A

visceral pericarium

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5
Q
  • innermost layer of the heart covering
  • lines the heart itself
A

visceral pericardium

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6
Q
  • Middle layer of the heart covering
  • Lines the interior of the fibrous pericardium
  • Located at the Thoracic Wall
  • Its membrane lines the wall cavity, the thoracic wall
  • Serous fluid
A

Parietal Pericardium

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7
Q

Functions of the Serous Fluid

A

acts as a lubricant and reduces friction from muscle movement.

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8
Q
  • Middle layer of the heart wall
  • Thick bundles of cardiac muscle.
  • Ring like arrangements
  • Intercalated Disks
  • Layer that contracts
  • Dense fibrous connective tissues
A

Myocardium

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9
Q

-Innermost layer of the heart
-Lines the heart chambers

A

Endocardium

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10
Q

Thin glistening sheet that lines the heart

A

Endothelium

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11
Q

Allow ions to flow from cell to cell, carrying a wave of excitement across the heart

A

Gap Junctions

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12
Q

Inflammation of the pericardium
- This causes the pericardial layers to rub, bind, and stick to each other, forming painful adhesions that interfere with heart movements.

A

Pericarditis

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13
Q
  • Receiving Chambers
  • Assist with filling the ventricles
A

Atria

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14
Q

Receives deoxygenated blood from the body

A

Right Atrium

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15
Q

Receives oxygenated blood from the lungs

A

Left Atrium

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16
Q
  • Discharging/Pumping Chambers
  • Fifth intercostal wall
  • Thick walled
A

Ventricles

17
Q
  • Thicker, more powerful ventricle
  • forms the heart’s apex
A

Left Ventricle

18
Q

Forms most of the anterior heart’s s anterior surface

A

Right Ventricle

19
Q

divides the heart longitudinally

A

Septum

20
Q

divides the atria

A

interatrial septum

21
Q

divides the ventricles

A

interventricular septum

22
Q

divides the left and right ventricles

A

interventricular septum

23
Q

Receives deoxygenated blood from the body

A

Right Atrium

Anatomy and Physiology (9 decks)

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