As the Period of Fetal Growth Comes to an End

question 79

Multiple Choice

As the period of fetal growth comes to an end, a steep rise in ____ levels directly causes ____.

• A) progesterone; uterine cells to express oxytocin receptor genes
• B) progesterone; uterine contractions
• C) estrogen; uterine cells to express oxytocin receptor genes
• D) estrogen; uterine contractions
• E) estrogen; oxytocin production

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Definitions:

Cochlear Neurons

Specialized neurons that transmit auditory information from the cochlea to the brain.

Stereocilia

Hairlike projections on the surface of certain cells, involved in sensory processes like hearing and balance.

Cochlear Duct

Interior of the membranous labyrinth of the cochlea; also called cochlear canal or scala media.

Modiolus

Central core of spongy bone about which turns the spiral canal of the cochlea.