A woman's body usually ovulates around what day in a normal 30-day cycle?
A. Day 5.
B. Day 10.
C. Day 14.
D. Day 22.
Sperm, once created, are stored in an area of the male body called the ______.
A. Scrotal sac.
B. Epididymis.
C. Seminal vesicles.
D. Cowper's glands.
Which of these is the best analogy describing the function of the kidneys?
A. A waste treatment plant
B. A control center
C. A medical facility
D. A soldier training facility
Which of the following is NOT a role of cortisol?
A. Reducing inflammation.
B. Raising the blood sugar level.
C. Inhibiting the release of histamine.
D. Controlling motor impulses.
How many pairs of spinal nerves are known to exit the spinal cord?
A. 10.
B. 12.
C. 31.
D. 42.
The spinal cord reaches from the base of the skull to the first or second lumbar vertebra. The base of the skull is also known as:
A. foramen magnum.
B. filaments.
C. cerebellum.
D. corpus callosum.
What is the name of the structure that transfers urine from the kidneys to the bladder?
A. Urethra.
B. Tubules.
C. Ureters.
D. Nephron.
Humans can survive most easily without which of the following?
A. Pancreas.
B. Lungs.
C. Gallbladder.
D. Bladder.
Which of the following is true about simple reflexes?
A. They travel through the entire body.
B. They travel only through the spinal cord.
C. They travel only through the brain.
D. They do not travel and remain localized.
Estrogen serves what primary function in the female reproductive system?
A. It initiates the preparation of the endometrium for pregnancy.
B. It triggers the release of the egg from the ovary.
C. It causes fertilization.
D. It triggers the production of breast milk.
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