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WorksheetsRespiratory System (12/9/2023)
Total questions: 20
Worksheet time: 10mins
Which is not a structure of the respiratory system?
pharynx
bronchus
larynx
hyoid
trachea
Most of the CO2 is transported in the blood as
carboxyhemoglobin
HCO3-
carbaminohemoglobin
dissolved CO2
The amount of air that is moved in and out of the lungs during normal breathing is called
vital capacity
tidal volume
residual volume
vital volume
inspiratory volume
Which combination of muscles contraction causes inspiration?
internal intercostals-diaphragm
diaphragm-abdominal complex
external intercostals-diaphragm
external-internal intercostals
The cells formed in the alveolar wall that remove foreign particles from the pulmonary alveoli are called
Kupffer cells
pulmonary reticulocytes
surfactant cells
alveolar macrophage cells
The pharynx is divided into how many portions?
2
3
4
5
The right lung has how many lobes?
1
2
3
4
5
All the following have an effect on the control of breathing except
chemical receptors
respiratory control centers in the brain stem
level of hydrogen ions
amount of blood flowing into the lungs
Carbon dioxide can be carried in the bloodstream by all of the following methods except
attached to hemoglobin molecules
as a dissolved gas in plasma
as bicarbonate ions
attached to hormone molecules in the blood
The basic inspiratory and expiratory centers are located in the
lungs
medulla oblongata
carotid and aortic bodies
pons
Exchange of gas between blood and cells is
external respiration
internal respiration
cellular respiration
none of the choices
The serous membrane in contact with the lung is
parietal pleura
pulmonary mesentery
pulmonary peritoneum
visceral pleura
Exchange of gases within the lungs occurs through what process?
active transport
osmosis
diffusion
phagocytosis
Hemoglobin with an attached oxygen molecule is called
carboxyhemoglopbin
oxyhemoglobin
carbonic oxygen
carbaminohemoglobin
The pressure of air within the alveoli and bronchial tree is called
atmospheric pressure
intrapulmonic pressure
intrathoracic pressure
none of the choices
The following are true about intrapleural pressure except
it is the pressure between the bronchial tree
always negative during normal breathing
becomes positive only during coughing
pressure between the 2 layers of the pleura
During the phase of inspiration, the following occurs except
the pressure is the same as atmospheric pressure when the lungs are at rest
the thoracic cage expands, so the lung volume decreases
diaphragm and intercostals muscles contract
none of the choices
The respiratory system may indirectly assist defecation.
true
false
The larynx contains 9 separate cartilages, the largest of which is the thyroid cartilage.
true
false
The following are true of intrapleural pressure except:
always negative during normal breathing
more negative during inspiration
less negative during expiration
more positive during inspiration
