Multiple sensory receptors can synapse on a single neuron. The receiving neuron has a firing rate proportional to the number of signals received. Which of the following is this an example of?

A. temporal summation
B. spatial summation
C. action potential
D. hyperpolarization


B

Biology & Microbiology

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Sam was in a terrible head-on collision. When he recovered from all of the obvious, external injuries, the once affable and happy-go-lucky person had become surly and very unfriendly. Which part of his cerebrum was most likely damaged?

A) prefrontal cortex B) Broca's area C) thalamus D) postcentral gyrus

Biology & Microbiology

Which one of the following enables T helper cells to stimulate and activate other cells of the immune response?

A) interferon B) cytokines C) antibodies D) complement E) histamine

Biology & Microbiology

The pectoral girdle is adapted for great strength, whereas the pelvic girdle is more adapted for flexibility.

Answer the following statement true (T) or false (F)

Biology & Microbiology

What mode of transmission increases, stabilizes, then decreases?

A. Water B. Fomite C. Droplet D. Parenteral E. Biological vector

Biology & Microbiology