The motor pathway of the autonomic nervous system usually involves ________ neurons
A) three B) four C) no D) two E) one
D
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Melanocyte-stimulating hormone, which regulates the formation of melanin, is produced by the
A. pineal gland. B. the hypothalamus. C. anterior lobe of the pituitary gland. D. intermediate lobe of the pituitary gland.
Hypocalcemia can cause ________.
A. muscle weakness B. depression of the nervous system C. muscle spasms D. sluggish reflexes E. emotional disturbances
Case study:You have just admitted Mary Roberts, a 70-year-old woman, to the hospital for GI bleeding. Her blood pressure is 130/80, pulse 80/min and irregular, respirations 18/min, and temperature 99.2. Mrs. Roberts denies pain at this time, although she appears anxious and very pale. Her medical history includes lung cancer that was diagnosed two weeks ago, peptic ulcer disease with reflux esophagitis, and "fluid retention." Admission lab work shows a plasma Na+ of 152 mEq/L and K+ of 2.8 mEq/L.The increase in extracellular osmolality would cause
A. water to move into the cells. B. no change in the net movement of water into or out of the cells. C. water to move out of the cells.
The joint formed by the axis and atlas that permits the "no" shaking of the head is a ________ joint.
A. plane B. pivot C. hinge D. condylar E. saddle