MAP review questions ANS & PNS

Monosynaptic reflexes

are exemplified by the stretch reflex.

Postganglionic fibers of autonomic neurons are usually

connected to cardiac muscle, smooth muscle, glands, and adipocytes.

Which of the following pairs is not properly matched? thoracic spinal nerves: 12 coccygeal spinal nerves: 1 sacral spinal nerves: 5 cervical spinal nerves: 8 lumbar spinal nerves: 4

lumbar spinal nerves: 4

Which fiber usually release norepinephrine (NE)?

sympathetic postganglionic

There are ________ pairs of spinal nerves.

31

Which cranial nerve delivers visual information to the brain?

CN II (optic nerve)

Preganglionic fibers of parasympathetic neurons can be found in which cranial nerves

III, VII, IX, X

divisions of the ANS?

Most ganglionic neurons for the sympathetic system are located in the sympathetic trunk ganglia.

Which of the following statements is correct *Spinal nerves are located in the PNS, whereas cranial nerves are located in the CNS. *Spinal nerves outnumber cranial nerves. *Spinal nerves are sensory, whereas cranial nerves are motor. *Both cranial and spinal nerves are part of the CNS.

Spinal nerves outnumber cranial nerves.

Which of the following systems is responsible for the "fight or flight" response

Sympathetic nervous system

Ascending pathways

carry sensory information to the brain

Effects produced by the parasympathetic branch of the autonomic nervous system include

increased secretion by digestive glands.

An autonomic motor neuron whose cell body lies in the CNS is called a(n)

preganglionic neuron.

Which of the following lists the parts of a reflex arc in the correct order? receptor, effector, sensory neuron, interneuron, motor neuron receptor, sensory neuron, effector, interneuron, motor neuron receptor, sensory neuron, interneuron, motor neuron, effector receptor, interneuron, sensory neuron, motor neuron, effector effector, receptor, sensory neuron, interneuron, motor neuron

receptor, sensory neuron, interneuron, motor neuron, effector

Which cranial nerve is the only one to leave the head and neck region of the body?

vagus

Which of the following is cranial nerve (CN) X?

vagus

Pulling away from a painful stimulus is an example of a(n) ________ reflex

withdrawal