Does a local potential guarantee the creation of an action potential? Explain
What will be an ideal response?
A local potential must be strong enough to depolarize the axon to a level known as threshold, usually -55 mV. Without threshold, an action potential cannot be achieved. So, a local potential only guarantees an action potential if threshold is reached.
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a. miotic drugs b. topical anesthetics c. mydriatic drugs d. osmotic drugs
Muscarinic receptors are found on the effector cells innervated by the sympathetic division
Indicate whether the statement is true or false
The enterogastric reflex serves to ________.
A. relax the ileocecal valve when chyme is on its way to the colon B. relax the stomach in preparation for swallowed food C. inhibit gastric motility when there is chyme in the small intestine D. stimulate acid and enzyme secretion when food enters the stomach E. stimulate intestinal motility when there is food in the stomach
A child born with the inability to develop either cell- or antibody-mediated immunity is diagnosed with
A) AIDS. B) SIDS. C) MS. D) IDDM. E) SCID.