The organ that delivers semen into the female reproductive tract is the
A) urethra.
B) ejaculatory duct.
C) penis.
D) corpus cavernosum.
E) corpus spongiosum.
Answer: C
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Which is a major function of the plasma membrane?
A. Generating ATP B. Regulating the passage of molecules into and out of the cell C. Storing calcium ions D. Providing genetic information E. Storing organic chemicals for metabolism
A ________ plane (section) divides the body into anterior and posterior portions.
A. paramedian B. sagittal C. transverse D. coronal E. horizontal
When the pH of the extracellular fluid declines,
A) the kidneys excrete more bicarbonate ions. B) the kidneys reabsorb less water. C) the pH of the urine increases. D) the kidneys excrete more sodium ions. E) the kidneys reabsorb more potassium ions.
Which muscle(s) that regulate(s) micturition is/are under involuntary control?
A) detrusor and the external urethral sphincter B) external urethral sphincter C) internal urethral sphincter D) detrusor and the internal urethral sphincter E) detrusor