Heart Flashcards

1
Q

The adult heart is shaped like a ____ and
approximately the size of a ____

A

blunt cone; closed fist

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2
Q

The adult heart has a mass of

A

250-350g

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3
Q

The heart is located in the ___ between two pleural cavities that surroun the lungs

A

thoracic cavity

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4
Q

midline partition

A

mediastinum

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5
Q

cavity of the heart

A

Pericardial cavity

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6
Q

main function of the heart

A

pump blood throughout the body

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7
Q

Beats approx. ___ times daily carrying ___L of
blood.

A

100,000;8000L

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8
Q

Covering of the Heart

A

The
Pericardium

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9
Q

A sac consisting of
fibrous and serous
pericardia.

A

Pericadium

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10
Q

Pericardium 2 layers:

A
  • Fibrous Pericardium
  • Serous Pericardium
    +Parietal
    +Visceral
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11
Q

Heart wall (3)

A

1.Epicardium
2.myocardium
3.endocardium

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12
Q
  • Outermost layer of the heart
A

Epicardium

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13
Q
  • Composed of simple squamous epithelium and an areolar
    connective tissue(deep area)
A

Epicardium and Endocardium

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14
Q

Responsible for the overall contraction of heart necessary to
pump blood

A

Myocardium

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15
Q

Composed of cardiac muscle tissue.

A

Myocardium

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16
Q

Middle layer of the heart wall

A

Myocardium

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17
Q
  • Innermost layer of the heart
  • Composed of simple squamous epithelium and an areolar
    connective tissue(deep area)
A

Endocardium

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18
Q

The heart has four
chambers:

A

Superior Atria (2)
Inferior Ventricles (2)

19
Q

receives
the blood from the vein

A

Superior Atria (2)

20
Q

pump blood away from the
heart from the atria

A

Inferior Ventricles

21
Q

Internal Partitions (2)

A

Interatrial Septum
Interventricular Septum

22
Q

separates the atrial
chambers

A

Interatrial Septum

23
Q

separates the ventricular
chambers

A

Interventricular Septum

24
Q

separate the atria from the
ventricles

A

Coronary Sulcus

25
Q

from coronary
sulcus to anterior surface of the heart

A

Anterior Interventricular Sulcus

26
Q

from coronary
sulcus to posterior surface of the heart

A

Posterior Interventricular Sulcus

27
Q

Veins that carry blood to the heart (4)

A
  1. Superior Vena Cava
  2. Inferior Vena Cava
  3. Coronary Sinus
  4. Four Pulmonary Veins
28
Q

Arteries that carry blood away from the heart (3)

A
  1. Pulmonary Trunk
  2. Aorta
  3. Pulmonary Arteries
29
Q

Heart Valves (2)

A
  • Atrioventricular Valves (AV Valves)
  • Semilunar Valves
30
Q

Prevent backflow into the atria

A

atrioventricular valves

31
Q

2 types of AV Valves

A
  • Tricuspid valve
  • Bicuspid/mitral valve
32
Q

AV valve located between the right atrium and the right
ventricle

A

tricuspid valve

33
Q

AV valve between the left atrium
and left ventricle

A

bicuspid/mitral valve

34
Q

Each ventricle contains cone-shaped, muscular pillars called ”___” and attached to a connective
tissue strings called “____.”

A

papillary muscles;
chordae tendineae

35
Q

Prevent backflow associated into the ventricles

A

Semilunar Valves

36
Q

The aorta and pulmonary trunk possess

A

aortic and pulmonary semilunar valves.

37
Q

A plate of connective tissue, sometimes called the
“________” surrounds the valves and give them
solid support.

A

cardiac skeleton

38
Q

Two coronary arteries supply
blood to the wall of the
heart:

A

Left Coronary Artery
Right Coronary Artery

39
Q

originates on the left side
of the aorta.

A

Left Coronary Artery

40
Q

two
major branches of Left Coronary Artery

A
  1. Anterior interventricular
    artery
  2. Circumflex artery
41
Q

originates on the right side
of the aorta. It has two
major branches:

A

Right Coronary Artery

42
Q

2 major branches of the Right Coronary Artery

A
  1. Posterior interventricular
    artery
  2. Right marginal artery
43
Q

coronary circulation

The ________ drain blood
from the ________ and
most of them drain blood
into the _______.

A

cardiac veins, cardiac muscle, coronary sinus

44
Q

coronary sinus. This
sinus has three (3) attributes:

A
  1. Great Cardiac Vein
  2. Middle Cardiac Vein
  3. Small Cardiac Vein