Stimulus for the secretion of parathyroid hormone is a decrease in serum ________ levels.

A. phosphate
B. Ca2+
C. calcitonin
D. K+
E. Na+


Answer: B

Anatomy & Physiology

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Peristalsis is a process in which

A. the entire esophagus contracts at once. B. food is mechanically digested as it is repeatedly squeezed in a closed organ. C. food is squeezed forward through the digestive tract. D. food can move forward or backward. E. contraction can only occur when food is present.

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Lack of resistance is also known as

a) Pathogenic b) Innate c) Specific d) Susceptibility e) Lymphatic

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A 26-year-old patient is admitted to a local hospital with a retroperitoneal infection. Which of the following arteries is most likely to be infected?

(A) Left gastric artery (B) Proper hepatic artery (C) Middle colic artery (D) Sigmoid arteries (E) Dorsal pancreatic artery

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Receptors of the ________ senses receive the signal of nausea.

A. visceral B. cutaneous C. accommodation D. labyrinthitis

Anatomy & Physiology