Sperm movement through the uterus and uterine tubes is aided by muscle contractions of the uterine walls and ________ in the semen.

A. estrogen
B. epinephrine
C. prostaglandins
D. progestins


Answer: C

Anatomy & Physiology

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Which of the following hormones is responsible for the development and maintenance of the secondary sexual characteristics?

a. testosterone b. estrogen c. progesterone d. Both a and b e. All of the above

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Changes called male climacteric are a consequence of a(n) ________.

A. decreased secretion of testosterone B. increased secretion of progesterone C. increased secretion of estrogens D. increased secretion of FSH and LH E. increased secretion of GnRH

Anatomy & Physiology

What is the advantage of transmitting information by an electrical synapse?

A) Hormone free B) Chemical free C) Fast recovery D) Less toxicity

Anatomy & Physiology

A postsynaptic neuron responds to neurotransmitters released by a presynaptic neuron by creating

a) EPSPs b) water-filled channels in its membrane c) IPSPs d) either EPSPs or IPSPs e) All the choices are correct

Anatomy & Physiology