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Respiratory Fundamentals > Ch 53 > Flashcards

Ch 53 Flashcards

0
Q

Endocardium

A

Innermost lining of the heart. Composed of endothelial cells

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1
Q

Epicardium

A

A thin membrane, lines the outside of the heart.

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2
Q

Myocardium

A

Muscular tissue of the heart serving the primary function of the heart

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3
Q

Bundle of his

A

A collection of heart muscle cells specialized for electrical conduction that transmits the electrical impulses

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4
Q

Sympathetic nervous system

A

Increases heart rate, cardiac contractility, and strike volume

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5
Q

Arteries

A

Blood vessels that deliver oxygen rich blood from the heart to the tissues of the body

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6
Q

Veins

A

Vessels that carry blood to the heart

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7
Q

Capillaries

A

Exchange oxygen and nutrients between the circulatory system and the organs

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8
Q

What percentage of the work of breathing is needed to counter the effects of airway resistance

A

0.25%

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9
Q

Which cells in the alveolar epithelium are the primary source of surfactant

A

Type 2

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10
Q

Atrium

A

Chamber of the heart; the left atrium receives blood from the pulmonary veins and delivers it to the left ventricle

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11
Q

Ventricles

A

Small cavities making up two of the four chambers of the heart

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12
Q

Coronary sinus

A

Veins that drain deoxygenated blood from the myocardium into the right atrium

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13
Q

Pulmonary arteries

A

Arteries supplying blood to the lungs

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14
Q

Alveoli

A

Small sacs through which gas exchange takes place between alveolar gas and capillary blood; composed of type 1 and 2 cells

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15
Q

Atrioventricular node (AV)

A

Receives impulses from the SA node and transmits them to the AV bundle for eventual symmetric distribution throughout the ventricle

16
Q

Bronchi

A

Larger air passages of the lungs

17
Q

Channels of lambert

A

Anatomic connections between alveoli and adjacent terminal bronchioles that allow collateral ventilation

18
Q

Compliance

A

Serves as a determinant in the mechanisms of airflow in and out of the lungs

19
Q

Conchae

A

Move mucous toward the nasopharynx

20
Q

Coronary artery

A

Vessels that provide blood supply to the heart muscle

Respiratory Fundamentals (1 decks)

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