List and briefly explain the function of each portion of the male reproductive tract, in order, from where the sperm cells are first produced to the point where they leave the male's body.
What will be an ideal response?
Sperm originate in the walls of the seminiferous tubules, which compose the bulk of the testes. The sperm mature
in the epididymis, a coiled tubular structure on the surface of the testis. Upon ejaculation, the sperm enter the ductus deferens, flow through the prostate gland in the ejaculatory duct, then exit the body in the urethra, which is also a urine excretory structure.
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A ________, also called a mole, is a harmless, localized overgrowth of melanin-forming cells.
Fill in the blank(s) with the appropriate word(s).
Which of the following is false regarding the spinocerebellar tracts?
A. Some of the tracts do not cross. B. Some of the tracts cross twice. C. There are only two neurons in each pathway. D. Damage to the left side of the cerebellum affects the left side of the body. E. The last neuron in the pathway goes from the thalamus to the cerebellum.
Gastrin is released when chyme enters the duodenum
Indicate whether the statement is true or false.
A cell will most likely hyperpolarize when __________ enters it
A) Cl- B) Na+ C) Ca2+ D) Both B and C Fill in the blank with the correct answer.