Exam 7: The Peripheral Nervous System: Efferent Division

Binding of ACh with receptor sites on the motor end plate opens chemical messenger-gated cation channels in the motor end plate, bringing about depolarization of the motor end plate.

The neuromuscular junction

Indicate the characteristics of the types of autonomic receptors using the following answer code (more than one answer may apply): -Response to activation of this type of adrenergic receptor is generally inhibitory.

MATCHING Indicate which part of the autonomic nervous system is being described by writing the appropriate letter in the blank using the following answer code. -Has a short preganglionic fiber and a long postganglionic fiber.

The ____________________ is a modified sympathetic ganglion that does not give rise to postganglionic fibers but instead secretes hormones similar or identical to sympathetic postganglionic neurotransmitters into the blood.

The neurotransmitter at the neuromuscular junction is

Indicate whether the following autonomic anatomical and physiological features pertain to: -innervates the adrenal cortex

Indicate whether the following autonomic anatomical and physiological features pertain to: -causes blood vessels to constrict

Parasympathetic stimulation ____ heart rate and ____ the motility in the digestive tract.

Innervation of a single target by both branches of the

Select the CNS structure that does not influence autonomic activity.

MATCHING Indicate which part of the autonomic nervous system is being described by writing the appropriate letter in the blank using the following answer code. -Innervates smooth muscle, cardiac muscle, and exocrine glands.

Indicate whether the following autonomic anatomical and physiological features pertain to: -issues fibers through cranial nerves

The ____________________ fibers of the autonomic nerve pathway are located in the central nervous system.

The accompanying figure relates to events at the neuromuscular junction. Match the steps highlighted in the figure (steps 1-9) with the statements using the letter key below. -action potential triggers opening of voltage-gated calcium channels in motor neuron axon terminal

The sympathetic branch of the autonomic nervous system has its cells of origin in the brain stem as well as the spinal cord.

What are the various ways in which toxins can interfere with normal neuron function?

Sympathetic stimulation of the gallbladder increases the amount of bile released into the small intestines.

Parasympathetic postganglionic fibers

Autonomic activity can be influenced by conscious neural activity.