The two categories of immune defensive mechanisms are ________ and ________.
A. passive immunity; active immunity
B. heavy immunity; light immunity
C. direct immunity; indirect immunity
D. innate (nonspecific) immunity; adaptive (specific) immunity
Answer: D
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Which of the following has an association with the fetal umbilical vein?
A) falciform ligament B) greater omentum C) mesentery proper D) lesser omentum E) diaphragm
Which of the following time periods is termed electromechanical delay?
A. the time required for conduction of the nerve impulse to the neuromuscular junction B. the time required for the nerve impulse to cross the neuromuscular junction C. the time required for the muscle to initiate the development of tension after receipt of the nerve impulse D. the time required for a muscle to reach peak tension after the development of tension is initiated
The urinary bladder is located in the ________ region.
A. umbilical B. hypogastric C. left inguinal D. epigastric
The microglia of the brain are macrophages.
Answer the following statement true (T) or false (F)