Define centrifuge
What will be an ideal response?
A machine that spins substances such as blood in order to separate differing densities within the spun matter.
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The ________ root of a spinal nerve consists of motor neuron axons.
Fill in the blank(s) with the appropriate word(s).
A mutation occurs in a gene that is important to the production of MHC Class II molecules. Which of the following statements accurately describes the ramifications of such a mutation?
A. Such a mutation will alter the ability of NK cells to detect tumor cells in the body. B. There will not be a negative impact because the mutation affects a rare class of MHC molecules that are only functional later in life. C. Such a mutation inhibits cytotoxic T cell function since these cells will not be able to interact with other cells of the body. D. Such a mutation will hinder antibody production due to the lack of interaction between B lymphocytes and helper T cells.
Which hormone stimulates the uptake of glucose by cells, lowering the concentration of glucose in the blood?
A) epinephrine B) cortisol C) insulin D) glucagon
Autonomic function receives input from all these except ________
A) cerebral cortex B) hypothalamus C) spinal cord D) somatic branch of the peripheral nervous system E) medulla oblongata