The three phases of deglutition are __________.
a. pharyngeal, palatopharyngeal, and stylopharyngeal
b. palatal, lingual, and mesial
c. buccal, pharyngeal, and esophageal
d. parotid, sublingual, and submandibular
Ans: c. buccal, pharyngeal, and esophageal
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A patient is suffering from a condition requiring multiple blood transfusions. They have type A blood and their first transfusion was perfectly successful. However, their second transfusion of type A blood causes them to become very ill and observation of their blood reveals agglutination. What has happened to cause their second transfusion to fail?
A. They have developed a sensitivity to A antigens after being exposed to the first transfusion. B. The second transfusion must have had anti-A antibodies, which began attacking their blood. C. The blood used in the second transfusion must have come from a pregnant woman with Rh-negative blood. D. The blood used in the first transfusion contained Rh antigens, which caused the patient to produce anti-Rh antibodies and attack the blood from the second transfusion.
Parathyroid hormone and calcitriol
A. stimulate osteoclasts to resorb bone and release calcium into the blood. B. stimulate osteoblasts to deposit bone by producing calcified matrix. C. stimulate osteoblasts to resorb bone and lower blood calcium levels. D. stimulate osteoclasts to move calcium from the blood and into the bone.
The __________ respiratory group consists mostly of inspiratory neurons whose descending fibers terminate on the motor neurons that supply the inspiratory muscles
Fill in the blank(s) with correct word
What is the function of the 'respiratory zone' in mammalian lungs:
A. conduct air to alveoli B. clean inspired air C. exchange gas between air and blood D. humidify inspired air E. warm inspired air