Section 50 1-4 Review

Which of the following statements are false?

Axons of rods and cones make up the optic nerve

Axons that are required for the patella reflex are located in

a spinal nerve

Dorsal roots consists of

afferent neurons

Myelin sheaths surround

axons

Which of the following is associated with the semicircular canals?

balance

The olfactory epithelium

contains chemoreceptors

A typical neuron has more than one

dendrite

The sympathetic division

excites smooth muscles

Each cerebral hemisphere is divided into

four lobes

The cell bodies of neurons are located within the

gray matter

The perception of taste

is based on certain food chemicals

The central nervous system is projected from the injury by the

pia mater dura mater arachnoid layer

The somatic nervous system

primarily affects skeletal muscles

The initiation of an action potential

requires sodium ions move into the neuron

Action potentials require

sodium ions gated channels diffusion

Which of the following is NOT a component of the brain stem?

thalamus

Axons in the ventral root of a spinal nerve could be part of

the autonomic nervous system

A spinal nerve requires

the spinal cord but not the brain

Bones of the middle ear

transfer sound vibrations to the inner ear

In a neuron neurotransmitters are stored in

vesicles within axon terminals