Worksheetschapter 22 respiratory
Total questions: 35
Worksheet time: 18mins
Which of the following anatomical structures is not part of the conducting zone?
pharynx
nasal cavity
alveoli
bronchi
What is the function of the conchae in the nasal cavity?
increase surface area
exchange gases
maintain surface tension
maintain air pressure
The fauces connects which of the following structures to the oropharynx?
nasopharynx
laryngopharynx
nasal cavity
oral cavity
Which of the following are structural features of the trachea?
C-shaped cartilage
smooth muscle fibers
cilia
all
Which of the following structures is not part of the bronchial tree?
alveoli
bronchi
terminal bronchioles
respiratory bronchioles
What is the role of alveolar macrophages?
to secrete pulmonary surfactant
to secrete antimicrobial proteins
to remove pathogens and debris
to facilitate gas exchange
Which of the following structures separates the lung into lobes?
mediastinum
fissure
root
pleura
A section of the lung that receives its own tertiary bronchus is called the ________.
bronchopulmonary segment
pulmonary lobule
interpulmonary segment
respiratory segment
The ________ circulation picks up oxygen for cellular use and drops off carbon dioxide for removal from the body.
pulmonary
interlobular
respiratory
bronchial
The pleura that surrounds the lungs consists of two layers, the ________.
visceral and parietal pleurae.
mediastinum and parietal pleurae.
visceral and mediastinum pleurae.
none
Which of the following processes does atmospheric pressure play a role in?
pulmonary ventilation
production of pulmonary surfactant
resistance
surface tension
A decrease in volume leads to a(n) ________ pressure.
decrease in
equalization of
increase in
zero
The pressure difference between the intra-alveolar and intrapleural pressures is called ________.
atmospheric pressure
pulmonary pressure
negative pressure
transpulmonary pressure
Gas flow decreases as ________ increases.
resistance
pressure
airway diameter
friction
Contraction of the external intercostal muscles causes which of the following to occur?
The diaphragm moves downward.
The rib cage is compressed.
The thoracic cavity volume decreases.
The ribs and sternum move upward.
Which of the following prevents the alveoli from collapsing?
residual volume
tidal volume
expiratory reserve volume
inspiratory reserve volume
Gas moves from an area of ________ partial pressure to an area of ________ partial pressure.
low; high
low; low
high; high
high; low
When ventilation is not sufficient, which of the following occurs?
The capillary constricts.
The capillary dilates.
The partial pressure of oxygen in the affected alveolus increases.
The bronchioles dilate.
Gas exchange that occurs at the level of the tissues is called ________.
external respiration
interpulmonary respiration
internal respiration
pulmonary ventilation
The partial pressure of carbon dioxide is 45 mm Hg in the blood and 40 mm Hg in the alveoli. What happens to the carbon dioxide?
It diffuses into the blood.
It diffuses into the alveoli.
The gradient is too small for carbon dioxide to diffuse.
It decomposes into carbon and oxygen.
Oxyhemoglobin forms by a chemical reaction between which of the following?
hemoglobin and carbon dioxide
carbonic anhydrase and carbon dioxide
hemoglobin and oxygen
carbonic anhydrase and oxygen
Which of the following factors play a role in the oxygen–hemoglobin saturation/dissociation curve?
temperature
pH
BPG
all
Which of the following occurs during the chloride shift?
Chloride is removed from the erythrocyte.
Chloride is exchanged for bicarbonate.
Bicarbonate is removed from the erythrocyte.
Bicarbonate is removed from the blood.
A low partial pressure of oxygen promotes hemoglobin binding to carbon dioxide. This is an example of the ________.
Haldane effect
Bohr effect
Dalton’s law
Henry’s law
Increased ventilation that results in an increase in blood pH is called ________.
hyperventilation
hyperpnea
acclimatization
apnea
Exercise can trigger symptoms of AMS due to which of the following?
low partial pressure of oxygen
low atmospheric pressure
abnormal neural signals
small venous reserve of oxygen
Which of the following stimulates the production of erythrocytes?
AMS
high blood levels of carbon dioxide
low atmospheric pressure
erythropoietin
The olfactory pits form from which of the following?
mesoderm
cartilage
ectoderm
endoderm
A full complement of mature alveoli are present by ________.
early childhood, around 8 years of age
birth
37 weeks
16 weeks
If a baby is born prematurely before type II cells produce sufficient pulmonary surfactant, which of the following might you expect?
difficulty expressing fluid
difficulty inflating the lungs
difficulty with pulmonary capillary flow
no difficulty as type I cells can provide enough surfactant for normal breathing
When do fetal breathing movements begin?
around week 20
around week 37
around week 16
after birth
What happens to the fluid that remains in the lungs after birth?
It reduces the surface tension of the alveoli.
It is expelled shortly after birth.
It is absorbed shortly after birth.
It lubricates the pleurae.
The difference between the conducting and respiratory zones is that the conducting zone is where the actual gas exchanges occur.
True
False
The pleural cavity and pleural fluids lubricate and prevent damage due to friction to the pleurae.
True
False
Lung compliance is the ability of the lung tissue to contract from pressure.
True
False
