Order Anatomy and Physiology Assignment

Order Anatomy and Physiology Assignment
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Order Anatomy and Physiology Assignment
1. Which of the following statements could be applied to “external respiration”?
A. Exchange of gases between alveolar air and the blood in pulmonary
B. Exchange of dissolved gases between blood in tissue capillaries and the body
C. The production of CO2 from organic molecules in the cells by using O2.
D. The inhalation of atmospheric air into the lungs followed by exhalation.
2. Which anatomical structures does the “conducting zone” of the lower respiratory
tract contain?
A. Eustachian tube, larynx and trachea
B. Primary, secondary and tertiary bronchi and bronchioles
C. Nares, conchae, olfactory mucosa and sinuses
D. Nasopharynx and larynx
Order Anatomy and Physiology Assignment
3. What is the function of the cilia on the cells that line the bronchial tree?
A. They help mix the inhaled fresh air with the residual air contained in the
bronchial tree.
B. They slow the movement of air to allow for efficient exchange of gases.
C. They move the mucus on the cell surface up out of the bronchial tree.
D. They filter particles from inhaled air.
4. One of the following statements is correct. Which one?
A. The visceral pleura is attached to the chest wall and the parietal pleura is
attached to the lung.
B. The two lungs and their associated structures are known as the
13 Respiratory System
C. The hilum is a serous membrane that surrounds each lung separately.
D. A negative pressure is maintained between the two lung pleura.
5. What term is applied to the volume of air that moves into the lungs while breathing at rest?
A. Anatomical dead space
B. Inspiratory reserve capacity
C. Tidal volume
D. Residual volume
Order Anatomy and Physiology Assignment
6. Severing the nerves that innervate the breathing muscles may lead rapidly to
death. Will a spinal cord break between the level of cervical vertebrae 6 and 7
leave the victim able to breathe? Choose the answer with the correct reason.
A. No. The breathing muscles are innervated by spinal nerves that leave the
spinal cord at the level of each thoracic vertebra.
B. Yes. The diaphragm will work as it is innervated by nerves arising from C3
to C5.
C. No. The breathing muscles are innervated by autonomic impulses from the
respiratory centre which is located in the brain stem.
D. Yes. The muscles of breathing are innervated by the sympathetic nervous
system which is unaffected by damage to the somatic nervous system.
7. Which molecule or ion dissolved in blood is able to stimulate the central chemoreceptors of the brain’s respiratory centre?
A. CO2
B. H3O
C. O2
D. Ca2
8. What term is applied to the exchange of dissolved gases between capillary blood
and body tissues?
A. Internal respiration
B. External respiration
C. Ventilation
D. Cellular respiration
9. Between which two anatomical structures does the Larynx lie?
A. The nares and the choanae
B. The epiglottis and the trachea
C. The choanae and the glottis
D. The glottis and the epiglottis
10. What is the function of the ciliated cells of the respiratory epithelium?
A. To trap inhaled particles not removed by the nasal cavity
B. To secrete a mucus layer onto the epithelium
C. To move mucus and trapped particles up the bronchial tree
D. To secrete surfactant that decreases water surface tension
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