Exam 11: The Nervous System: Autonomic and Motor Systems

Parasympathetic postganglionic neurons release the neurotransmitter ; sympathetic postganglionic neurons release the neurotransmitter .

For skeletal muscle to relax, the neural stimulation must decrease.

Which of the following physiological responses is associated with an elevation in parasympathetic nervous system activity?

Which of the following physiological responses is associated with elevated sympathetic nervous system activity?

Alpha adrenergic receptors have a greater affinity for norepinephrine than for epinephrine.

Binding of acetylcholine to

Where in the central nervous system do the preganglionic neurons of the parasympathetic nervous system originate?

Dual innervation of organs by the autonomic nervous system refers to the observation that

Compared to norepinephrine, epinephrine has a greater affinity for what type of receptor?

The nature of a response from the sympathetic nervous system is determined by the anatomy of this system. Describe the general structure of the sympathetic nervous system, including the three anatomical configurations and how they contribute to the overall sympathetic response.

Acetylcholine binding to nicotinic cholinergic receptors always excites the postsynaptic cell.

What is the primary mode of action of curare?

Located entirely within the autonomic ganglia, cells that modulate the flow of information to the target organ are called

Where on skeletal muscle is the highest density of nicotinic receptors?

Acetylcholine is one of the most common neurotransmitters in the peripheral nervous system. Identify the branches of the peripheral nervous system for which acetylcholine is the neurotransmitter and describe the receptors responsible for responding to acetylcholine. Include the mechanisms whereby these receptors transduce the response to acetylcholine.

Binding of acetylcholine to receptors causes By opening channels that primarily Permit sodium to permeate the membrane.

Sympathetic preganglionic neurons exit the spinal cord via the spinal nerve. They leave the spinal nerve and enter the ganglion via the Root, and then join the Ramus. Most of The postganglionic fibers return to the spinal nerve via the

Actions at which class of adrenergic receptor generally have inhibitory effects?

The presence of within varicosities initiates the release of neurotransmitter.

The autonomic nervous system is also known as the involuntary nervous system.