Defense cells in blood are called
A) red blood cells.
B) platelets.
C) fibroblasts.
D) adipocytes.
E) white blood cells.
Answer: E
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The hepatic sinusoids
A. are part of the portal triad. B. transport bile. C. have phagocytic cells in their lining. D. connect to the gallbladder. E. do not have a function.
The ________ cells of the distal nephron are interspersed among the principal cells and contribute to acid-base regulation.
Fill in the blank(s) with the appropriate word(s).
The area that coordinates visual reflexes is the:
a) cerebellum b) superior colliculus c) inferior colliculus d) cerebral peduncles
The function of helper T-lymphocytes is to
A. turn off the immune response once it has been activated. B. secrete toxins to kill or disable pathogens. C. trigger cell death by disrupting metabolic activities. D. initiate and oversee the immune response. E. All choices are correct.