A neuron with nicotinic receptors is exposed to acetylcholine. This will not lead to
A) activation of chemically gated ion channels.
B) excitation of the neuron.
C) entry of sodium ion.
D) binding of the nicotine to the channel.
E) activation of muscarinic receptors.
Answer: D
You might also like to view...
If a red blood cell is placed in a hypotonic solution,
A. the cell will shrink. B. only permeable substances will leave; but concentrations in the cell do not change. C. the cell will swell and may eventually burst. D. the cell will remain the same size and shape.
The ________ is the prediction of the outcome of a disease.
A. prognosis B. diagnosis C. acute determination D. syndrome
Match the term with the appropriate description. Answer with the letter preceding the description.A. The floor of the nasal cavityB. Superior portion of pharynxC. A soft process that extends inferiorly from the posterior edge of the soft palateD. The opening of the nasal cavity into the pharynxE. External openings of the nasal cavityInternal nares
Fill in the blank(s) with the appropriate word(s).
The pontine respiratory group
A. is a collection of neurons in the pons. B. has connections with the medullary respiratory centers. C. plays a role in switching between inspiration and expiration. D. All of these are correct.