When Stretch Receptors in the Cervix Are Stimulated by the Continually

question 66

Multiple Choice

When stretch receptors in the cervix are stimulated by the continually increasing pressure of the fetus, afferent neurons send impulses to the maternal hypothalamus resulting in

• A) increased estrogen production.
• B) increased oxytocin production.
• C) increased fetal CRH production.
• D) increased growth in the size of the placenta.
• E) decreased oxytocin production.

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Definitions:

Hominin Clade

The hominin clade comprises all the species belonging to the human lineage after it split from the chimpanzee lineage, including modern humans, their ancestors, and closely related species.

Species

A category in the classification of organisms, referring to a group that can reproduce amongst itself and produce fertile offspring.

Bipedality

The ability to walk upright on two legs, a key feature distinguishing humans and some other species from quadrupedal animals.

Selective Pressures

The environmental factors that favor certain phenotypes over others, influencing an organism's ability to survive and reproduce.