Chapter 11 Vocab Quiz Flashcards Preview

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Flashcards in Chapter 11 Vocab Quiz Deck (44):
1

Alveolar sacs

like a cluster of grapes at the end of alveolar ducts

2

Alveoli

microscopic sac-like dilutions of terminal bronchioles

3

Surfactant

reduced surface tension and prevents alveoli from collapsing

4

pleura

serous membrane in thoracic cavity

5

pneumothrax

accumulation of air in the pleural space, causing collapse of lung

6

external respiration

exchange of gases between air in the lungs and in the blood

7

internal respiration

the exchange of gasses between the body cells and the blood

8

diaphragm

the musculomembranous partition separating the abdominal and thoracic cavitites and serving as a major muscle aiding inhalation

9

Oxyhemoglobin

hemoglobin that contains bound O2 a compound formed from hemoglobin on exposure to alveolar gas in the lungs

10

carbaminohemoglobin

a combination of carbon dioxide and hemoglobin, CO2HHb, belong on eof the forms in which carbon dioxide exists in the blood

11

tidal volume (TV)

the volume of air inspired or expired in a single breath during regular breathing

12

spirometer

an instrument for measuring the air taken into and exhaled by the lungs

13

Vital capacity

The amount of air that can be foricibly expelled from the lungs following breathing in as deeply as possible

14

expiratory reserve volume

the maximal volume of air, usually about 1000 milliliters that can be expelled form the lungs after normal expiration

15

Inspiratory reserve volume

the maximal volume of air that can be inhaled after a normal inspiration

16

residual volume

the volume of air remaining in the lungs after a maximal expiratory effort

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chemo receptors

cells, or groups of cell membrane molecules, which initiate nerve action potentials

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eupnea

normal respiration

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hyperventilation

abnormally fast or deep respiration resulting in the loss of carbon dioxide rom the blood, therby causing a decrease in blood pressure and sometimes fainting

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hypo ventilation

reduction in amount of air entering pulmonary alveoli

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dyspnea

labored breathing or difficult breathing

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apnea

cessation of breathing

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olfaction

sense of smell

24

diffusion

spreading, scattering of dissolved particles

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respiratory membrane

sinkage layer that makes up walls of alveoli

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upper respiratory tract

division of the respiratory tract outside the thorax that is composed of the nose, pharynx and larynx

27

lower respiratory tract

division of the respiratory tract within the thorax and is composed of the trachea, all of the bronchial tree and lungs

28

respiratory mucosa

mucus covered membrane that lines the tube of the respiratory tract

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external nares

nostils

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paranasal sinuses

fou rpairs of sinuses that have opening the nose

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lacrimal sacs

pouches that collect tears form the eyes and drain them torwards the nose

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conchae

shell shaped structures, body projections into the nasal cavity

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pharynx

organ of the digestive and respiratory system commonly called the throat

34

nasopharynx

the upperomost portion of the tube right behind the nasal cavity

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oropharynx

portion of the pharynx located behind the mouth

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larygopharynx

lowest part of the pharynx

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larynx

voice box

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glottis

space between vocal cords

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epiglottis

lid like cartilage over hanging entrance cartilage

40

trachea

windpipe, extends from larynx to bronchi

41

primary bronchi

first branches of the trachea

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secondary bronchi

smaller bronchial branches, divisions of primary bronchi

43

bronchioles

small branches of bronchus

44

alveolar ducts

airway that branches from smallest bronchioles, alveoli sacs arise from these