All receptors for __________ are confined to the head and are innervated by cranial nerves.
A. the special senses
B. the somesthetic senses
C. proprioception
D. exteroception
E. chemoreception
A. the special senses
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In response to the hormone secretin, the pancreas secretes a fluid
A) rich in enzymes. B) rich in bicarbonate ion. C) rich in bile. D) rich in mucus. E) that contains only amylase.
After stretching an intrafusal fiber, the next event is
A) decreased sensitivity to stretching. B) an increase in action potentials along the associated sensory neuron. C) a decrease in muscle tension. D) a decrease in muscle tone. E) All of the answers are correct.
The Scapula is _________ to the Ribs and _________ to the Clavical.
a) Superficial, Anterior b) Superficial, Posterior c) Deep, Anterior d) Deep, Posterior
Which is TRUE about the initial segment of an axon?
A. Its membrane potential at threshold is more positive than that of the cell body and dendrites. B. Its membrane potential at threshold is more negative than that of the cell body and dendrites. C. Synapses far from the initial segment are more effective in influencing whether an action potential will be generated in the axon than are synapses close to the initial segment. D. It is the region where neurotransmitter vesicles are docked and ready to be released by exocytosis. E. It can only conduct graded potentials because it lacks voltage-gated Na+ channels.