A man develops an immune system disorder that attacks his schwann cells and destroys the myelin sheaths of his nerve cells. What will immediately happen to his nervous tissue as a direct result?

• Acetylcholine will stop being released at the nerve cell synapses.

• Axons will deliver nerve cell impulses at a much slower rate.

• Dendrites will no longer be able to depolarize.

• Nerve cell membranes will lose their ability to repolarize.

Which of the following cranial nerves is not responsible for eye movement?

• abducens

• oculomotor

• optic

• trochlear

If you had damage to the ventral horn of the spinal cord on the right side, where would your body impairment be? 

• loss of motor function on the left side of the body below the site of damage to the spinal cord

• loss of motor function on the right side of the body below the site of damage to the spinal cord

• loss of sensory function on the left side of the body below the site of damage to the spinal cord

• loss of sensory function on the right side of the body below the site of damage to the spinal cord

Mr. Mac was cooking and burned his fingertips on his left hand. Which of the following is a potential consequence for the patient.

• could cut a finger and not realize it

• unable to move the knuckles

• will be paralyzed from the elbow to the fingertips

• none of these

 

Which structure of the nervous system is associated with thoracic outlet syndrome and traction trauma?

• central nervous system

• nerve root

• nerve plexus

• peripheral nerve

An increase in heart rate in response to exercise is controlled by what Nervous System?

• autonomic

• somatic

• peripheral

• none of the above

Tags

NGSS.HS-LS1-3

What is the correct organizational sequence of the nervous system when a stimulus is introduced?

• interneuron, afferent, and efferent

• efferent, interneuron, and afferent

• afferent, efferent, and interneuron

• afferent, interneuron, and efferent

A particular medication works by blocking the receptor sites on the post-synaptic neuron. Which structure in synapse is being inhibited from binding to a receptor?

• the vesicle

• the pre-synaptic neuron

• the neurotransmitter

• the calcium channel

If someone were to have nerve damage and couldn't send messages from the brain to the body, which part of the neuron is damaged?

• dendrite

• myelin sheath

• synaptic vesicle

• axon

Which of the following events will occur if the re-uptake channels in a neuron become inhibited?

• The nervous impulse will not be passed from pre-synaptic to post-synaptic neuron.

• The neurotransmitter will continue to bind to and stimulate receptors on the post-synaptic neuron.

• New receptor sites will develop on the post-synaptic neuron to accommodate excess neurotransmitter.

• There will be a decrease in the available neurotransmitters and the impulse will have to be conducted through other channels.

Tags

NGSS.HS-LS1-3

NGSS.HS-LS2-3