Which of the following is not found in the epidermis?
a. blood vessels, which can experience diameter changes for thermoregulation
b. keratinocytes
c. melanocytes
d. Langerhans cells
e. Granstein cells
A
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What unique feature is present only on the thoracic vertebrae?
A) transverse foramina B) dens (odontoid process) C) superior and inferior costal facets D) vertebral foramina
Explain the role of the afferent and efferent arterioles in maintaining the high hydrostatic pressure within the glomerulus.
a) the afferent arteriole has larger diameter than the efferent arteriole b) the afferent arteriole has a smaller diameter than the efferent arteriole
Consider the biochemical pathway used to synthesize the amino acid proline. A high increase in the level of proline will most likely lead to
A) increased breakdown of proline. B) a further increase in proline production. C) proline being converted to praline. D) a decrease in proline production. E) no change in the rate of proline production.
Which spinal curvature develops as an infant begins to hold up his or her head?
a. lumbar b. thoracic c. cervical d. sacral