Which of the following is an androgen?

A. Follicle-stimulating hormone (FSH)
B. Luteinizing hormone (LH)
C. Progesterone
D. Testosterone
E. Estrogen


Answer: D

Anatomy & Physiology

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Which is the neurotransmitter that causes the release of calcium ions from reservoirs within the muscle cell and thereby initiates the steps of contraction?

A.  Acetylcholinesterase B.  Acetylcholine C.  Serotonin D.  Norepinephrine

Anatomy & Physiology

When the wrist is flexed, the finger flexors cannot produce as tight a fist as when the wrist is in a neutral position. This is an example of what?

A. active insufficiency B. passive insufficiency C. both A and B D. none of the above

Anatomy & Physiology

Answer the following statements true (T) or false (F)

1. The male urethra serves the urinary system only. 2. Both tetrads and crossovers are seen during meiosis. 3. Failure to attain erection is called impotence. 4. Ovulation occurs near the end of the ovarian cycle. 5. The corpus luteum secretes progesterone only.

Anatomy & Physiology

Where are the cardiac, vasomotor, and respiratory centers found?

A. Medulla oblongata B. Pons C. Midbrain D. Spinal cord E. Diencephalon

Anatomy & Physiology