Which statement best describes the manner in which growth hormone stimulates cell proliferation?
A. It directly stimulates cell division in most tissues.
B. It stimulates sleep.
C. It stimulates metabolism.
D. It stimulates the release of eicosanoids from lymphoid tissues.
E. It stimulates the release of insulin-like growth factor I (IGF-1) from the liver and other target tissues of growth hormone.
Answer: E
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The spinal curvature that develops as a child learns to walk shifts the trunk weight over the legs. It is an example of a ________ curve
A. primary B. secondary
Which of the following are paired incorrectly?
a. voltage-gated Ca+ channels and slow-wave action potentials in smooth muscle b. intestinal smooth muscle and a syncytium c. spiral valve and teleost fish d. salivary glands and metazoans e. peristalsis and rumen
In the stratum granulosum of the skin, keratinocytes are filled with basophilic keratohyaline granules. These granules form as a result of which intracellular process?
a. Accumulation of hyaluronic acid b. Degeneration of mitochondria c. Formation of aggregations of profilaggrin d. Fragmentation of the nucleus during keratinocyte apoptosis e. Synthesis of hemidesmosomes
Which cranial nerve is involved in the pathway for hearing?
A. CN VII B. CN VI C. CN VIII D. CN V