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bio 242 > CH: 23 PT.1 Respiratory system > Flashcards

CH: 23 PT.1 Respiratory system Flashcards

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Biology 101 flashcards
1
Q

nasal apertures = nostrils = nares x2

A

internal and external

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2
Q

internal nares

A

chonae

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3
Q

nasal cavities

A

warm air traps dust particles, olfactory sense, provide resonance for speech, has cilia, cells secrete mucous

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4
Q

pharynx = throat

A

nasopharynx, oropharynx, laryngopharynx

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5
Q

nasopharynx

A

superior portion, for respiration, lined with columnar epithelium

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6
Q

oropharnyx

A

posterior oral cavity, common resp and digestive, stratified squamous epithelium

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7
Q

laryngopharynx

A

common to resp and digestive, stratified squamous epithelium

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8
Q

larynx = voice box

A

connect laryngopharynx to trachea, composed to many cartilages and muscles

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9
Q

thyroid cartilage - adams apple

A

largest cartilage

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10
Q

epiglottis

A

attached to thyroid cartilage, elastic cartilage and separates the resp from digestive

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11
Q

glottis

A

contains vocal cords which initiate speech

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12
Q

trachea = windpipe

A

anterior to the esophagus, enters the mediastinum then bifurcates to form primary bronchi, c-shaped cartilaginous structures that cover the anterior 3/4 of trachea, protection/maintains an open airway

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13
Q

what are the 3 types of bronchi

A

primary, secondary, bronchioles

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14
Q

primary bronchi

A

from trachea into lungs, enters lungs at the hilum

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15
Q

secondary bronchi

A

one per lobe
RT Lung: 3 lobes
LT: 2 lobes

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16
Q

bronchioles

A

transports oxygen from bronchi to alveoli

17
Q

lungs

A

a pair of cone-shaped organs that fill the lateral thoracic cavities

18
Q

apex of lung

A

superior portion

19
Q

Base of lung

A

the inferior surface that rests in the diaphragm

20
Q

three pleura’s of lungs?

A

parietal pleura, visceral pleura, pleura cavity

21
Q

parietal pleura

A

outer layer, lines thoracic cavity

22
Q

visceral pleura

A

inner layer, covers lung

23
Q

pleura cavity

A

filled with serous fluid to reduce friction

24
Q

pneumothorax

A

when air enters the pleura cavity, can cause lung to collapse and put pressure on heart

25
Q

pleurisy

A

inflammation of pleura that causes friction, produces a sharp pain on inspiration

26
Q

simple squamous epithelium (type 1 alveolar cells)

A

make up most of walls of alveoli, regions oxygen and carbon dioxide exchange between the lungs & circulatory system

27
Q

type 2 alveolar cells

A

secretes surfactants

28
Q

alveolar macrophanges

A

alveolar macrophanges

29
Q

pulmonary arteries and veins

A

carry blood to and from heart

30
Q

bronchial arteries and veins

A

deliver oxygen to lung tissues

bio 242 (3 decks)

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