All cell bodies of the autonomic nervous system are located within the CNS.
Each spinal nerve attaches to the spinal cord by means of two short roots, a ventral root and a dorsal root.
Which of the following would not be an effector of the autonomic nervous system?
skeletal muscles
blood vessels
sweat glands
the iris of the eye
The “fight-or-flight” reaction is a normal response in times of stress.
A dermatome is the skin surface area supplied by a single spinal nerve.
The peripheral nervous system includes:
only spinal nerves.
only spinal nerves and their branches.
only cranial nerves, spinal nerves, and their branches.
cranial nerves, the spinal cord, spinal nerves, and their branches.
The spinal nerves are connected to the spinal cord and consist of:
12 PAIRS
21 PAIRS
31 PAIRS
41 PAIRS
Axon terminals, or endings, that secrete acetylcholine are called cholinergic terminals.
Sympathetic responses generally have widespread effects on the body because:
they reach visceral effectors faster than parasympathetic impulses.
myoneural junctions contain a substance that inactivates acetylcholine.
preganglionic fibers are short and postganglionic fibers are long.
preganglionic fibers synapse with several postsynaptic fibers.
Which is not true about most sympathetic postganglionic neurons?
They are usually longer than preganglionic neurons.
They produce acetylcholine.
They produce norepinephrine.
They have acetylcholine receptors on their dendrites.
