Where are oxytocin and antidiuretic hormone synthesized?
a) hypothalamus
b) anterior pituitary gland
c) thalamus
d) infundibulum
Answer: a) hypothalamus
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The spiral organ is housed within which of the following structures?
A. Scala vestibuli B. Scala tympani C. Cochlear duct D. Anterior semicircular duct E. Vestibule
When a muscle atrophies,
a. the muscle fibers split lengthwise. b. it decreases in mass and becomes weaker. c. its fibers increase in diameter. d. its fibers undergo mitotic cell division. e. the muscle fibers dissolve and are replaced by fibrous scar tissue.
If mesenchymal cells experience mutation during development, which of the following structures is most likely affected by the mutation?
A. Tendons B. Bones C. Cartilage D. All of the choices are correct.
The structure that regulates the passage of food from the stomach into the duodenum is called the _____ sphincter.?
A) ?cardiac B) ?pyloric C) ?anal D) ?duodenal