Exam 8: Nervous System

The minimum stimulus required to initiate a nerve impulse or action potential is called a(n)_____ stimulus.

What are the two components of the central nervous system?

The cerebral cortex is the outermost portion of the cerebrum and consists of

In most people the spinal cord is at least 2 feet long.

Two functional characteristics of neurons are

When a stimulus is applied to a neuron cell membrane,the permeability of the membrane is altered and _____ diffuses to the _____ of the cell resulting in depolarization.

A defect in the choroid plexus would interfere with an individual's ability to

Cells in nervous tissue that conduct impulses are the

An action potential or nerve impulse is conducted along the length of an axon

After an action potential,the cell membrane is restored to resting conditions by the

The substance that diffuses across the synaptic cleft from one neuron to the next is a

Interpretation of sensory impulses from the skin occurs in the

Somatic efferent pathways utilize two neurons,but the visceral efferent of autonomic pathway uses only one neuron.

Which one of the following is INCORRECT about the spinal cord?

The region of the brainstem that contains vital reflex centers for heart rate,respiration,and blood pressure is the

The cerebral hemisphere lobe that is directly posterior to the central sulcus is the

What is the term for the region of the brainstem that contains the pneumotaxic and apneustic centers?

The neurilemma is a white fatty substance around the axons of some neurons.

Cerebrospinal fluid flows from the third ventricle into the fourth ventricle through the

Trauma to the central nervous system is damage to the