All of the following are true of steroid hormones except that they
A) are produced by the adrenal medulla.
B) are derived from cholesterol.
C) are produced by reproductive glands.
D) bind to receptors within the cell.
E) are lipids.
A
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Cells that remove excess bone tissue after fracture repair are
A) fibroblasts and osteoblasts. B) osteoclasts and phagocytes. C) osteoblasts and osteoclasts. D) chondrocytes and osteocytes.
A 65-year-old woman presents with acute, severe flank pain radiating toward the pelvis
She also complains of some chronic musculoskeletal pain and indigestion. Radiology reveals a kidney stone in her ureter. Blood chemistry reveals hypercalcemia, and urine chemistry reveals hypercalciuria and hyperphosphaturia. An endocrine pathology most consistent with these findings is: A. infection of the GI tract that inhibits calcium and phosphate absorption B. an adenoma of the parathyroid glands, secreting excessive PTH C. hepatocellular carcinoma of the liver, resulting in overproduction of 25-hydroxyvitamin D D. a medullary carcinoma of the thyroid, secreting large amounts of calcitonin E. autoimmune destruction of the parathyroid glands
The blood vessel which is a part of corpus malpighii is called:
(a) a. trabecularis (b) aa. pulpae albae (c) aa. lymphnoduli (centrales) (d) aa. penicillares
A brush border of microvilli is found in __________ epithelium, which can be found in the __________.
A. pseudostratified; nasal cavity B. simple cuboidal; esophagus C. simple columnar; small intestine D. stratified squamous; anal canal E. stratified squamous; esophagus