Questão 1
Questão
Increasing carbondioxide content of blood results in
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increased H+
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decreased pH
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increased pH
Questão 2
Questão
A drop in the body’s production of carbonic anhydrase would:
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hinder the formation of carbonic acid.
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hinder the formation of oxyhemoglobin.
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hinder the formation of carbaminohemoglobin.
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do all of the above.
Questão 3
Questão
Partial pressure of oxygen is [blank_start]higher[blank_end] in alveolar air than in venous blood
Questão 4
Questão
Internal respiration
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also known as systemic gas exchange
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occurs between blood and body cells
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O2 moves from blood into cells, CO2 moves from cells into blood
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all of the above
Questão 5
Questão
External respiration is also known as
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systemic gas exchange
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pulmonary gas exchange
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aerobic respiration
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all of the above
Questão 6
Questão
Each hemoglobin molecule can carry this many oxygen molecules.
Questão 7
Questão
If the tidal volume were 600 ml, the alveolar ventilation would be about:
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550 ml
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400 ml
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300 ml
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250 ml
Questão 8
Questão
Carbon dioxide is carried in three forms in the blood. Ranking them from greatest to least amount carried, the sequence would be
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dissolved in the plasma, carbaminohemoglobin, and bicarbonate ion
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carbaminohemoglobin, bicarbonate ion, and dissolved in plasma
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bicarbonate ion, dissolved in plasma, and carbaminohemoglobin
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bicarbonate ion, carbaminohemoglobin, and dissolved in plasma
Questão 9
Questão
The largest of the paranasal sinuses is the
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maxillary
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frontal
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ethmoid
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sphenoid
Questão 10
Questão
The structure known as the “Adam’s apple” located in the neck is the
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epiglottis
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cricoid cartilage
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glottis
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thyroid cartilage
Questão 11
Questão
The structures that deflect air as it passes through the nose are called
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choanae
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paranasal sinuses
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conchae
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vibrissae
Questão 12
Questão
This part of the respiratory system does not function as an air distributor
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trachea
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bronchi
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bronchioles
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alveoli
Questão 13
Questão
Gas exchange, the lungs’ main and vital function, takes place in the
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bronchioles
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secondary bronchi
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primary bronchi
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alveoli
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All of the above
Questão 14
Questão
Which of the following is not a part of the nasal septum?
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Perpendicular plate
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Cartilage
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Vomer
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Palatine process
Questão 15
Questão
When the diaphragm and external intercostals contract?
Questão 16
Questão
Which of the following is the last stop for air in the respiratory system?
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Trachea
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Bronchus
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Alveolus
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Nose
Questão 17
Questão
Pleural cavity is located between?
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parietal and visceral pleura
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visceral pleura and alveolar sac
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parietal pleura and pulmonary capillary
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all of the above
Questão 18
Questão
Lungs are made up of?
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bronchi
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bronchioles
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alveolar sacs
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All of the above
Questão 19
Questão
Oxyhemoglobin formation is favored during
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internal respiration
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systemic gas exchange
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pulmonary gas exchange
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none of the above
Questão 20
Questão
The tendency of the thorax and lungs to return to the pre-inspiration volume is called
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compliance
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elastic recoil
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expiration
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ventilation
Questão 21
Questão
The small openings in the cribriform plate function to
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a. allow air to move between the nostrils
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b. allow branches of the olfactory nerve to enter the cranial cavity and reach the brain
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c. provide a filtering system for the inspired air
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d. Both A and B
Questão 22
Questão
The function of surfactant is to
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transport the oxygen from the air to the blood
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transport the carbon dioxide from the blood to the air
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prevent each alveolus from collapsing as air moves in and out during respiration
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trap foreign particles as they enter the bronchial tree
Questão 23
Questão
The volume of air available for gas exchange per minute is called?
Questão 24
Questão
In the right lung, the superior and middle lobes are separated by the
Questão 25
Questão
At the level of the hyoid bone
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the laryngopharynx becomes the esophagus
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the oropharynx becomes the laryngopharynx
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the nasopharynx becomes the oropharynx
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the nasopharynx becomes the laryngopharynx
Questão 26
Questão
Much of the nasal passage is lined with this mucous membrane
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stratified columnar epithelium
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pseudostratified columnar epithelium
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simple squamous epithelium
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simple columnar epithelium
Questão 27
Questão
Which of the following constitutes total lung capacity?
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Residual volume and vital capacity
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Tidal volume, inspiratory reserve volume, and expiratory reserve volume
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Residual volume and tidal volume
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Vital capacity and tidal volume
Questão 28
Questão
If the tidal volume of a given individual is 500 ml, then the anatomical dead space is approximately:
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50 ml.
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100 ml.
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150 ml.
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200 ml.
Questão 29
Questão
In order to inhale we [blank_start]increase[blank_end] the size of our thoracic cavity, which [blank_start]decreases[blank_end] internal pressure.
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increase
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decrease
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decreases
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increases
Questão 30
Questão
Hypoxia may result with an increase in altitude because
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there is a relatively fixed number of erythrocytes
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the respiratory rate decreases
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the heart is less efficient in pumping blood
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atmospheric O2 decreases
Questão 31
Questão
The term used to describe the volume of air moving into or out of the lungs during normal inspiration and expiration is
Questão 32
Questão
Oxygen is not transported in the blood this way
Questão 33
Questão
Boyle law states that the volume of a gas varies:
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directly with pressure at a constant temperature
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inversely with pressure at a constant temperature
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directly with pressure at a constantly changing temperature
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inversely with pressure at a constantly changing temperature
Questão 34
Questão
Air movement occurs from area of _____ to area of _____?
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a. low pressure, high pressure
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b. high pressure, low pressure
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c. high concenration, low concentration
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d. both b and c
Questão 35
Questão
What percentage of carbon dioxide we generate is converted to bicarbonate ions in the red blood cells ?
Questão 36
Questão
What percentage of carbondioxide is transported bound to hemoglobin.
Questão 37
Questão
By the time the blood leaves the lung capillaries to return to the heart, what percentage of the blood’s hemoglobin has united with oxygen?