Before a doctor performs an episiotomy, a cut in the perineum that makes the opening of the birth canal larger, branches of what nerves arising from the lumbosacral plexuses are anesthetized?
A) femoral nerves
B) ischiadic nerves
C) obturator nerves
D) pudendal nerves
Answer: D) pudendal nerves
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The function of the seminal vesicle is to
A. produce 60% of the seminal fluid. B. prevent urine from mixing with semen. C. contribute to seminal fluid and lubricate the end of the penis during intercourse. D. None of the above
The most numerous type of receptor in the body is the
A. thermoreceptor. B. tactile receptor. C. nociceptor. D. photoceptor. E. chemoreceptor.
In order for a reaction to occur, energy is needed to break the bonds that already exist in the reactant molecules; that energy is called the _________ energy
Fill in the blank with correct word.
The cell wall of plant cells is composed of ____
a. cellulose b. lipid c. protein d. nucleic acid