Voluntary motor impulses leave the spinal cord via the ________ of gray matter.
A. anterior column
B. posterior column
C. anterior horn
D. lateral horn
E. posterior horn
Answer: C
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Phospholipids have both hydrophobic and hydrophilic ends. How does this structure make the phospholipid ideally suited to the selectively permeable structure needed by the plasma membrane?
A. The hydrophobic heads create a boundary that prevents water-soluble polar molecules from crossing the membrane. B. The hydrophobic tails create a boundary that prevents water-soluble polar molecules from crossing the plasma membrane but allows lipid-soluble nonpolar molecules. C. The hydrophobic heads create a boundary that prevents lipid-soluble nonpolar molecules from crossing the membrane. D. The hydrophilic heads create a boundary that prevents water-soluble polar molecules from crossing the membrane.
Which of the following is NOT a common effect of glucocorticoid stimulation?
a) Protein and fat breakdown b) Glucose formation c) Depression of immune responses d) Reduction of inflammation e) Increased production of all types of blood cells
When an organ or gland shrinks due to lack of use, that condition is referred to as ________.
Fill in the blank(s) with the appropriate word(s).
The term "primary lymphatic structure" applies
A. only to red bone marrow. B. only to lymph nodes. C. to lymph nodes and MALT. D. to the red bone marrow and thymus. E. to the spleen and lymph nodes.