Taste is perceived in a region located adjacent to the "tongue" region of the somatosensory cortex
Indicate whether the statement is true or false
T
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When a neurotransmitter like GABA is acting in an inhibitory manner which of the following is likely a result of the GABA acting on the post synaptic cell?
A) influx of positively charged ions into the postsynaptic cell B) opening of chemically gated sodium channels C) depolarization of the postsynaptic cell membrane D) hyperpolarization of the postsynaptic cell membrane
Choose the correct statement regarding motor units.
A) Muscle fibers of each motor unit are not mingled with those of other motor units. B) During a sustained contraction, all motor units are activated simultaneously. C) A motor neuron may control only two or three muscle fibers of the eye muscle(s). D) When muscles contract for sustained periods, maximal tension is maintained. E) Most motor neurons control fewer than five muscle fibers.
The distention of the stomach by food is the primary stimulus to begin the ________ phase of gastric secretion.
A. hepatic B. intestinal C. cystic D. cephalic E. gastric
In an aging heart, the ventricles tend to enlarge due to increased resistance in the blood vessels.
Answer the following statement true (T) or false (F)