Somatic vs. Autonomic Nervous System

In the somatic nervous system sensory input comes from what?

Skeletal muscles

In the autonomic nervous system sensory input comes from what?

walls of organs and internal environment

The motor output pathway for the somatic nervous system has how many neurons?

1

The somatic nervous system has synapses where ONLY in its motor output pathway?

effector

The autonomic nervous system has ___ neurons and ___ synapse(s) in its motor output pathway.

2, 1

Both the somatic and autonomic nervous systems have ____________ at the effector.

synapses

What are the neurotransmitters in the somatic nervous system's motor pathway?

Acetylcholine

What are the neurotransmitters in the autonomic nervous system's motor pathway?

-acetylcholine in ganglia

-norepinephrine or acetylcholine at effector

What are the effectors of the somatic nervous system?

skeletal muscle

What are the effectors of the autonomic nervous system?

-smooth muscle in walls of hollow organs

-glands

-cardiac muscle

What are the responses of effectors in the somatic nervous system?

contraction

What are the responses of effectors in the autonomic nervous system?

varied; depends on tissue

What is the autonomic nervous system's two-neuron chain composed of?

preganglionic neuron and postganglionic neuron

The somatic nervous system is ALWAYS ____________.

stimulatory

The autonomic nervous system can be ____________ or _____________.

stimulatory, inhibitory

Both the pre-ganglionic fibers in the sympathetic and parasympathetic divisions of the autonomic system as well as the single motor neuron of the somatic nervous system are what?

myelinated

Motor neurons of the ___________ nervous system contain more rapidly conducting axons.

somatic