Explain the role of experience in the immune system. Given the importance of experience, is a person's immune response determined by the genes or the environment? Explain.
What will be an ideal response?
Fetal development of the immune system involves elimination of lymphocytes that can bind to self cells. Secondary
exposures to a given antigen result in a faster and more vigorous immune response due the persistence of memory
cells that were created following the first exposure. But the immune response is ultimately genetic because
lymphocytes recognize antigens as a result of having specific complementary membrane receptors, and these
receptors are proteins whose amino acid sequence and thus 3-D shape are determined by the DNA.
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The postganglionic axons from the superior mesenteric ganglion innervate
A. part of the pancreas. B. part of the small intestine. C. the proximal part of the large intestine. D. the distal half of the duodenum. E. All of the choices are correct.
Name the cavities of the trunk and the serous membranes that line them
What would be an ideal response?
If the cerebrum was no longer able to communicate with the midbrain, what type of tract would you suspect has been damaged?
A. Projection B. Association C. Commisural D. Ascending
Blood vessels enter the eye and nerve processes exit the eye at the
A. optic disc. B. macula lutea. C. sensory retina. D. fovea centralis. E. pupil.