In the cell-mediated immune response, T cells secrete ________, which activate additional components of the immune system.
A. histamine
B. complement
C. collagen
D. cytokines
E. antibodies
Answer: D
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The medial longitudinal arch prevents the medial side of the foot from touching the ground
Indicate whether this statement is true or false.
An elderly neighbor was diagnosed with an astrocytoma tumor in the brain. This cancer affects what types of cell?
a. ependymal cells b. microglia c. astrocytes d. satellite cells
What is the role of pacemaker cells?
A. can rapidly develop action potentials B. shallow invaginations of cell membrane C. relatively constant tension maintained for a period of time D. intracellular cytoskeleton E. enzyme that removes phosphate from myosin
Among other functions, hepatocytes (liver cells) are specialized for detoxifying drugs or other chemicals. Hepatocytes have large amounts of ________
A) smooth endoplasmic reticulum B) centrioles C) cilia D) microtubules E) DNA