Which chemicals are primarily responsible for initiating contractions of true labor?

A) prolactin
B) progesterone
C) relaxin and inhibin
D) estrogens and oxytocin stimulate the production of prostaglandins
E) LH and oxytocin


Answer: D

Anatomy & Physiology

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Which stimulates the secretion of growth hormone?

A. Waking from sleep B. Increased levels of IGF-I in blood C. High plasma glucose D. Increased somatostatin secretion E. Exercise

Anatomy & Physiology

Angiotensin II has what effect on the CNS?

A) Angiotensin II suppresses the activity of the CNS including reducing thirst, reducing ADH production and reducing sympathetic motor tone. B) Angiotensin II triggers CNS responses including increasing thirst, increasing ADH production and increasing sympathetic motor tone. C) Angiotensin II suppresses the activity of the CNS including increasing thirst, increasing ADH production and increasing sympathetic motor tone. D) Angiotensin II triggers CNS responses including reducing thirst, reducing ADH production and reducing sympathetic motor tone. E) Angiotensin II has little effect on the CNS but activates the PNS.

Anatomy & Physiology

The ________ is a U-shaped bone that sits above the larynx yet does not articulate with any other bone.

A. mandible B. hyoid bone C. maxilla D. zygomatic bone

Anatomy & Physiology