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Anatomy > Heart > Flashcards

Heart Flashcards

0
Q

How much does your heart weigh?

A

< 1 lb

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1
Q

What is the size of your heart?

A

Size of your fist

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2
Q

What is the shape of your heart?

A

Cone-shaped

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3
Q

What are your lungs medial to?

A

Lungs

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4
Q

What is your heart enclosed by?

A

A double sac (pericardium)

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5
Q

What does the apex rest on?

A

Diaphragm

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6
Q

Which way does the apex point?

A

Left

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7
Q

How many layers is the heart composed of?

A

3

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8
Q

What is the epicardium?

A

Outer protective layer of the heart

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9
Q

What is the myocardium?

A

Cardiac muscle, middle layer, thickest layer of heart

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10
Q

What is the endocardium?

A

Inside layer that lines the chambers and is continuous with the inside of the vessels

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11
Q

How many chambers does the heart have?

A

4

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12
Q

What are the 2 upper chambers of the heart called?

A

Atria

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13
Q

Are the atria receiving or discharging chambers?

A

Receiving

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14
Q

What are the 2 lower heart chambers called?

A

Ventricles

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15
Q

Are the ventricles receiving or discharging chambers?

A

Discharging

16
Q

What happens when the ventricles contract?

A

Blood is propelled out of the heart to the lungs and body systems

17
Q

What separates the ventricles?

A

Septum

18
Q

What does the heart function as?

A

A double pump

19
Q

The right side of the heart pumps blood to?

A

The lungs

20
Q

What is the pulmonary circuit?

A

The right side of the heart pumping to the lungs

21
Q

Left side of the heart pumps to?

A

Other body systems

22
Q

What is the systemic circuit?

A

The left side of the heart pumping blood to the other body systems

23
Q

Both ventricles pump to?

A

Two different places but pump at the same time

Anatomy (19 decks)

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