Answer the following statements true (T) or false (F)
1. A transfusion reaction is a subacute hypersensitivity to foreign red blood cells.
2. Somatic recombination by B cells allows each B cell to form its own unique antibody genes.
3. Antigens can be complete or incomplete.
4. It is our genes, not antigens, that determine what specific foreign substances our immune system will be able to recognize and resist.
5. If even a small part of the spleen is left in a ten-year-old child, it will most likely regenerate itself.
1. TRUE
2. TRUE
3. TRUE
4. TRUE
5. TRUE
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Gray rami from the sympathetic trunk connect to
A. alternating spinal nerves. B. the cranial nerves. C. all spinal nerves. D. the sympathetic trunk.
An upregulated cell has an increase in
A) the number of receptors available for binding. B) the concentration of ligands that bind to the receptors. C) the amount of DNA in the nucleus. D) the number of molecules the cell secretes.
Blood in the right atrium should travel next past the ________.
Fill in the blank(s) with the appropriate word(s).
Angiotensin II, aldosterone, and ADH each help decrease urine output.
Answer the following statement true (T) or false (F)