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Human Anatomy > chapter 24 respiratory system > Flashcards

chapter 24 respiratory system Flashcards

1
Q

what does the respiratory system consist of?

A

the nose, nasal cavity and sinuses, pharynx, larynx, trachea

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2
Q

what are external nares?

A

where air enters the respiratory system

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3
Q

pharynx is

A

the passageway formed by the nose, mouth and throat

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4
Q

what are the three divisions of the pharynx?

A

nasopharynx, oropharynx, larynopharynx

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5
Q

what is the nasopharynx?

A

superior portion of the pharynx, lined by typical respiratory epithelium

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6
Q

what is the eustachian tube?

A

tube that goes from ear to the back of the throat

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7
Q

what is the oropharynx?

A

extends between the soft palate and the base of the tongue at the level of the hyoid bone

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8
Q

what is the laryngopharynx?

A

includes the region of the pharynx lying between the hyoid bone and the entrance to the esophagus

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9
Q

what is the glottis?

A

the narrow opening where air leaves the pharynx

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10
Q

what is the larynx?

A

protects the glottis and is in control of sound production

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11
Q

what is the trachea?

A

tough, flexible tube with a diameter of about 2.5 cm and a length of approximately 11 cm

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12
Q

what is the mediastinum?

A

the end of the trachea where it branches off into the right and left primary bronchi

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13
Q

what are the three lobes of the right lung?

A

superior, middle and inferior

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14
Q

what is the horizontal fissure?

A

separates superior and middle lobes

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15
Q

what is the oblique fissure?

A

separates the superior and inferior lobes

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16
Q

what are the two lobes of the left lung?

A

superior and inferior

17
Q

why is the left lung longer than the right lung?

A

because the diaphragm rises on the right side to accommodate the mass of the liver

18
Q

what are terminal bronchioles?

A

branches of the tertiary bronchus

19
Q

what is bronchodilation?

A

sympathetic activation and the release of epinephrine by the adrenal medullae which causes enlargement of airways

20
Q

what is bronchoconstriction?

A

parasympathetic stimulation

21
Q

what are the respiratory bronchioles?

A

the thinnest and most delicate branches of the bronchial tree, and they deliver air to the exchange surfaces of the lungs

22
Q

what are the two continuous layers of the pleural membrane?

A

the parietal and the visceral pleura

23
Q

what is the parietal pleura?

A

the outer surface of the lungs extending into the fissure between the lobes

24
Q

what is the visceral pleura?

A

the inner surface of the thoracic wall and extend over the diaphragm and mediastinum

25
Q

what is the pleural cavity?

A

the space between the parietal and visceral pleurae

Human Anatomy (19 decks)

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