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Newest 2025/2026.
The process by which ova are formed is termed
Ans: Oogenesis is the process by which ova are formed.
Quiz Which of these is not a layer of the fetal placenta?
Ans: The caruncle is not a layer of the fetal placenta; it is a maternal structure.
Quiz Most conditioning of inspired air occurs in the
Ans: The inhaled air is warmed, humidified, and filtered by the lining of the nasal passages.
Quiz Which of the following is not a function of the respiratory system?
,Ans: Mastication, the chewing of food, is a digestive system function.
Quiz The sites in the lung where gases are exchanged between the air and the blood are the
Ans: The alveoli are tiny grape like clusters of air sacs, which are surrounded by capillary
networks.
Quiz The short, irregular tubular structure in the neck region that acts as a valve to control
airflow to the lungs is the
Ans: Larynx
Quiz The transfer of oxygen and carbon dioxide between the air and blood in the lungs is
accomplished by
Ans: Diffusion; the gases diffuse from areas of high concentration (pressure) to areas of low
concentration (pressure).
Quiz The epithelium lining the alveoli is
Ans: Simple squamous
Quiz The main tubular structure in the neck region that carries air to and from the lungs is the
Ans: Trachea; the trachea is commonly called the windpipe.
, Quiz What structure is not part of the upper respiratory tract?
Ans: Bronchioles are part of the lower respiratory system.
Quiz When the diaphragm contracts, it
Ans: Flattening of the diaphragm when it contracts increases the size (volume) of the thoracic
cavity and creates negative pressure.
Quiz Compared with blood entering the alveolar capillaries, air drawn into the alveoli of the
lungs has
Ans: Lower Pco2 and higher Po2; inhaled air contains more oxygen and less carbon dioxide
than does blood entering the alveolar capillaries.
Quiz The epithelium lining the upper respiratory tract is
Ans: Pseudostratified columnar
Quiz External respiration takes place
Ans: In the lungs; external respiration is the exchange of oxygen and carbon dioxide between
the blood and inspired air.