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BIOD 151/A & P 1 Module 2 Exam questions and answers latest [100% correct answers]
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BIOD 151/A & P 1 Module 2 Exam questions and answers latest [100% correct answers]
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BIOD 151/A & P 1 Module 2 ExamQuestion 1
pts
How many lobes does the right human lung
have? Your Answer:
Three lobes.
Three Lobes
Question 2
pts
Air and food pass in which one of the following areas:
Trachea
Nasopharynx
Oropharynx
Alveoli
Question 3
pts
Rings of cartilage line much of the respiratory tract. In which of one the
following would cartilage NOT be found?
Trachea
,Larynx
Bronchi
Alveoli
Question 4
pts
Label the following five items from the diagram:
Label B-
Label D-
Label E-
Label F-
Label G-
,Your Answer:
Label B- Oral
Cavity Label D -
Epiglottis Label E-
Glottis Label F-
Trachea Label G-
Esophagus
Label B- Oral Cavity
Label D- Epiglottis
Label E- Glottis
Label F- Trachea
Label G- Esophagus
Question 5
pts
Note: Essay answers must clearly be in your own words.
Explain what happens to the epiglottis during
swallowing. Why? Your Answer:
When we swallow the epiglottis moves to block the entrance of food particles
into our larynx and lungs. The muscles of the larynx pull upward to assist with
this movement. They tightly close during swallowing. This prevents food from
entering our lungs.
The trachea is closed by the epiglottis. The epiglottis moves inferiorly, covering
the trachea. This is to prevent food or liquid from entering the lungs.
Question 6
pts
Note: Essay answers must clearly be in your own words.
Explain at least two differences between Type I and Type II alveolar
cells. Your Answer:
The type I cells is a complex branched cell with multiple cytoplasmic plates
that are greatly attenuated and realatively devoid of organelles. Type I cells
the very thin simple squamous epithelium of the alveoli junction with
capillaries. Make up roughly 95 % of aleveolar epithelial cells.
,The Type II cells act as the 'caretaker' of the alveolar compartment. Type II
produce and secrete pulmonary surfactant which is needed throughout the
alveolar surface to keep the alveoli open. In addion, Type II cells can divide to
replace damaged Type I cells.
Make up roughly 5% of alveolar epithelial cells.
a. Type I form the very thin simple squamous epithelium of the alveoli in
junction with capillaries. Make up roughly 95% of alveolar epithelial cells.
b. Type II produce and secrete pulmonary surfactant which is needed
throughout the alveolar surface to keep the alveoli open. In addition, Type II
cells can divide to replace damaged Type I cells. Make up roughly 5% of alveolar
epithelial cells.
Question 7
pts
True/False: Positive pressure is used to move air into
the lungs. True
False
(Negative pressure)
Question 8
pts
True/False: During inhalation the diaphragm contracts to pull the lungs open.
True
False
Question 9
pts
True/False: During inhalation the rib cage lifts in an upward motion to open
and expand
the lungs.
, Tru
e
False
Question 10
pts
True/False: As the thoracic cavity expands and lung volume increases, the
density of the gases filling the lungs decreases.
True
False
Question 11
pts
True/False: When the diaphragm rises, thoracic pressure increases and
air naturally flows out of the lungs.
True
(air naturally flows out of the lungs because of the pressure difference)
False
Question 12
pts
Boyle's law states that gas volume is:
A. Directly proportional to temperature
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