When examining an endocrine cell from a new species of mammal under the microscope you find that it contains an abundance of rough endoplasmic reticulum, a large Golgi apparatus, and secretory granules. Which of the following is most likely to be true about these cells?
A. It secretes by endocytosis.
B. Its hormone product is synthesized from cholesterol.
C. It secretes a hormone with a hydrophobic structure.
D. It secretes a peptide/protein hormone.
E. It secretes its product by diffusion through the lipid bilayer of the plasma membrane.
Answer: D
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The bones surrounding the obturator foramen are the
A) pubis and ischium. B) pubis and ilium. C) ilium and ischium. D) pubis, ischium, and ilium.
What is the function of the longitudinal fasciculi?
A) connect one gyrus to another B) connect the frontal lobe to the other lobes of the same hemisphere C) connect the cerebral hemispheres D) connect the cerebral cortex to the diencephalon, brainstem, cerebellum, and spinal cord E) connect the cerebral cortex to the cerebellar cortex
Which would NOT be caused by a decrease in plasma Ca2+ levels in an otherwise normal person?
A. an increase in plasma parathyroid hormone levels B. an increase in plasma 1,25-dihydroxyvitamin D3 levels C. an increase in nerve and muscle excitability D. a decrease in the filtered load of Ca2+ E. an increase in bone density
It is important to realize that ringworm is caused by a ____________________________________ that infects skin, hair, nails and claws and has nothing to do with worms!
Fill in the blank(s) with correct word