Class 8: Respiratatory System Flashcards

(100 cards)

1
Q

Upper respiratory tract consists of

A

nose through larynx

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2
Q

lower respiratory tract consists of

A

trachea through lungs

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3
Q

Three parts of the pharynx

A

naso, oro, laryngo

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4
Q

nasopharynx passes only…

A

air

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5
Q

oropharynx and laryngopharynx pass…

A

air, food, and drink

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6
Q

components of larynx (voice box)

A

epiglottis, thyroid cartilage, cricoid cartilage

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7
Q

epiglottis function

A

flap of tissue that closes airway and directs food to the eophagus behind it

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8
Q

Thyroid cartilage defining features

A

largest, laryngeal prominence, shield shaped

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9
Q

cricoid cartilage function

A

connect larynx to trachea. it’s ringlike

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10
Q

Trachea dimensions

A

12 cm long, 2.5 cm diameter

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11
Q

trachea is supported by 16-20 rings of

A

hyaline cartilage, c-shaped

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12
Q

function of rings

A

reinforce trachea and keep it from collapsing

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13
Q

lungs have # of lobes on right/left?

A

3/2

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14
Q

the costal surface of the lungs press against the

A

ribcage

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15
Q

the mediastinal surface of the lungs face

A

medially toward the eart

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16
Q

the hilum is

A

a slit through which the lung receives main bronchus, bld vessels, lymphatics, and nerves

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17
Q

the root of the lung consists of

A

bronchus, bld vessels, lymphatics, nerves

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18
Q

right lung is shorter because

A

the liver rises high on the right side

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19
Q

the left lung is taller and narrower because of the

A

heart tilting towards the left

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20
Q

visceral pleura is a

A

serous membrane that covers the lungs

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21
Q

parietal pleura is located

A

on the inner surface of the rib cage and superior surface of the diaphragm

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22
Q

the parietal pleura adheres to the

A

mediastinum

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23
Q

the pleural cavity is the

A

potential space between the pleurae

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24
Q

the functions of the pleura (3)

A

reduce friction, create a pressure gradient, compartimentalization

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25
compartmentalization means that
an infection won't spread
26
bronchial tree parts (3)
main, lobar (secondary), segmental (tertiary)
27
main bronchi are supported by
c-shaped hyaline cartilage rings
28
the lobar bronchi are supported by
smaller bits of cartilage
29
how many lobar brochi supply each side?
3 on right- superior, middle, inferior, 2 on left- superior and inferior
30
all bronchi are lined with
ciliated pseudostratified columnar epithelium
31
the terminal and respiratory bronchioles are the
final air passages which give rise to the alveoli
32
respiratory cycle is
one complete inspiration and expiration
33
the flow of air in and out of the lung depends on a pressure...
difference between outside and inside of lungs
34
the internal and external intercostal muscles are synergists to the
diaphragm
35
scalenes are synergists to the
diaphragm
36
forced inspiration increases
thoracic volume
37
normal quiet expiration is
passive
38
forced expiration increases abdominal...pushes....
pressure, viscera up against diaphragm. forces air out
39
valsalva maneuver
palpitation move dr taught me in college
40
what part of the brain controls unconscious breathing?
medulla oblongata
41
what part of the brain controls voluntary breathing?
motor cortex
42
c3, 4, 5 keep the ...
diaphragm alive
43
hyperventilation happens when
co2 is blown off by the body faster than it is produced, causes pH to rise
44
central chemoreceptors are...
brainstem neurons that respond to changes in the pH of the cerebrospinal fluid
45
the pH of cerebrospinal fluid reflects the level of
CO2 in the blood
46
peripheral chemoreceptors are located on the
carotid and aortic bodies of the large arteries above the heart
47
peripheral chemoreceptors respond to the
O2, CO2, and pH of the blood
48
stretch receptors are found...
in the smooth muscle of the bronchi and bronchioles, and in the visceral pleura
49
hering-breuer reflex is the
inflation reflex. inhibits excessive inspiration
50
irritant receptors are
nerve endings in the epithelial cells of the airway that respond to irritants and trigger protective reflexes
51
surfactant is important because
the alveoli need it to open up and expand
52
spirometer measures
breath rate, depth, etc
53
tidal respiratory volume is the
volume of air inhaled and exhaled in one cycle of quiet breathing
54
inspiratory reserve volume is the
excess inhaled air
55
expiratory reserve volume is the
excess exhaled air
56
residual volume is the...
air remaining in the lungs after maximum expiration
57
the vital capacity is the...
total amount of air that can be inhaled and then exhaled with maximum effort
58
vital capacity is an important measurement of
pulmonary health
59
inspiratory capacity is the
maximum amount of air that can be inhaled after a normal tidal expiration
60
functional residual capacity is the
amount of air remaining in the lungs after a normal tidal expiration
61
the total lung capacity is the
maximum amount of air the lungs can contain
62
restrictive disorders limit..., examples
amount the lungs can be inflated, black-lung, tuberculosis
63
obstructive disorders interfere with..., examples
airflow by narrowing or blocking the airway... asthma, chronic bronchitis
64
emphysema is a combination of
a restrictive disorder and obstructive disorder
65
eupnea definition
relaxed quiet breathing
66
apnea definition
temporary cessation of breathing
67
dyspnea definition
labored breathing
68
hyperpnea definition
increased rate and depth of breathing in response to exercise, pain, etc
69
hyperventilation definition
increased breathing
70
hypoventilation definition
reduced breathing
71
Kussmaul respiration definition
deep, rapid breathing induced by acidosis
72
orthopnea definition
dyspnea that occurs when lying down
73
respiratory arrest definition
permanent cessation of breathing
74
tachypnea definition
accelerated respiration
75
Dalton's law
the total atmospheric pressure is the sum of the contributions of the individual gasses
76
alveolar gas exchange is the
back and forth traffic of O2 and CO2 across the respiratory membrane
77
CO2 travels in the blood as
carbonic acid
78
the main carbamino compound is
carbaminohemoglobin
79
hemoglobin is the specialized...
molecule that carries oxygen
80
carbonmonoxide ties up
hemoglobin for a long time
81
brainstem respiratory centers receive input from... monitor...
central and peripheral chemoreceptors that monitor the composition of blood and CF
82
acidosis is
blood pH lower than 7.35
83
alkalosis is
blood pH higher than 7.45
84
when someone is acidodic, they will... to create homeostasis
hyperventilate (blow off CO2)
85
hypoventilation is a corrective response to...
alkalosis
86
ketoacidosis definition
acidosis brought about by rapid fat oxidation releasing acidic ketone bodies (diabetes)
87
pimpin
ain't easy
88
chronic hypoxemia is seen in what conditions?
emphysemia, pneumonia
89
hypoxia definition
deficiency of oxyten
90
ischemic hypoxia definition
inadequate circulation of blood (congestive heart failure)
91
pneumothorax is the...
presence of air in the pleural cavity
92
atelectasis is the...
collapse of part or all of a lung
93
pneumothorax causes an...
atelectasis
94
COPD is...
chronic obstructive pulmonary disease
95
COPD caused by
chronic bronchitis, emphysema
96
In emphysemia the alveolar walls...
break down
97
in emphysemia, the lungs become...
fibrotic and less elastic
98
effects of COPD
reduce pulmonary compliace, cor pulmonale
99
cor pulmonale causes the...
right side of the heart to work harder because the pulmonary circulation is obstructed
100
lung cancer accounts for more deaths than any other form of...
cancer (squamous-cell carcinoma)