The Nervous System
Which of the following are parts of the central nervous system? Select all that apply.
the spinal cord the brain the cerebrum the cerebellum
The message of this pain travels up your arm. The _________ is predominantly at work.
PNS
You move your other hand, lifting it to your finger to pull the stinger out. The ________ system is predominantly at work.
PNS
The ________________ is the inner layer of the meninges.
pia
_____________________ means loss of control of both the arms and the legs.
quadriplegia
In the _________, messages pass between the brain and spinal cord.
CNS
The __________ consists of the brain and spinal cord.
CNS
Which of the statements about neurons are true? Select all that apply.
Neurons have dendrites, axons, and axon terminals. Neurons send and receive information.
The nervous system is
a network that carries messages between the brain and the rest of the body.
A person who types at a computer for several hours a day can be at higher risk of damaging the nerve in her wrist, leading to ____________________________.
carpal tunnel syndrome
A(n) _______________ is the smallest unit of any living thing.
cell
Carpal tunnel syndrome is caused by
compression of the median nerve in the wrist.
Which of the following parts of the body are involved in the peripheral nervous system? Select all that apply.
cranial nerves spinal nerves nerves ganglia plexuses All of the above
______________ support and maintain the nervous system.
glial cells
What types of messages are transmitted along autonomic pathways?
messages that control the glands and organs in the body
A _____________ is a bundle of axons.
nerve
A(n) ________________ is a part of the body that performs a specific task.
organ
A(n __________________ is a group of similar cells that specialize in the same task.
tissue
_________________ can result when the brain is shaken violently.
concussion
The _________________ is the middle cushioning layer that protects the brain.
arachnoid
_____________ are the part of a neuron that collects information.
dendrites
You think about pulling the bee stinger out of your finger. The _____ is predominantly at work.
CNS
Your brain receives and interprets the pain message. The _______ is predominantly at work.
CNS
____________________________ is caused by the body attacking its own nervous system and can lead to paralysis.
Guillain-Barré syndrome
What are the characteristics of the central nervous system? Select all that apply.
It is made up of the brain and spinal cord. It uses the spinal cord as a pathway to transmit messages to the PNS.
Which of the following statements describes the PNS?
It is responsible for gathering information using sensory receptors.
A bee stings your finger, and the sensory receptors in the ________ produce a pain signal.
PNS
The _______ provides sensation in the fingers and toes.
PNS
The __________ sends information from the senses to the brain.
PNS
___________________ results from trauma to the spinal cord, and causes loss of control of leg movement.
Paraplegia
____________________ results from trauma to the spinal cord, and causes loss of control of movement in legs and arms.
Quadriplegia
Diabetic neuropathy is caused by
inadequate blood supply to the nerves.
Injury to the spinal cord can be caused by compression of nerve roots by bulging ______________________.
intervertebral disks
A(n) ___________________ is a complex network that sends messages between the brain and the body.
nervous system
____________ are the basic cells of the nervous system.
nuerons
From the choices below, select the activities for which the nervous system is responsible.
quickly moving your hand off of a hot stove feeling pain identifying an odor
Which describe the functions of the central nervous system? Select all that apply.
regulates the sleep cycle acts as the control center of the nervous system manages the body's vital functions
A child is calmed by having his back rubbed before he goes to sleep. The soothing touch is sent along the ________________ pathway.
sensory
You are walking barefoot in your backyard and notice that the grass is sharp and painful.
sensory nerves
In reaction to the video game you are playing, your brain sends instructions to your fingers to press the correct buttons. The _____________________ pathway is being used.
somatic
__________________ can result from interruption of blood flow to the brain.
stroke
What are the differences between a motor and sensory pathway? Select all that apply.
B. A motor pathway takes instruction from the brain, while a sensory pathway takes information to the brain. D. A motor pathway triggers motion, while a sensory pathway passes information from the senses.
Select the statements that describe brain injuries.
B. Brain injuries can occur when the brain's oxygen or glucose supply is interrupted. D. Brain injuries can be caused by infection or intoxication.
Why is it important for the brain and spinal cord to be protected? Select all that apply.
B. because the brain and spinal cord are delicate C. because the brain and spinal cord are important centers of communication for the entire body D. because damage to the brain and spinal cord affects other parts of the body
On a hot summer afternoon, your sensory neurons detect heat; in a few moments, you begin to sweat. The ____________ pathway is being used to turn on the sweat glands.
autonomic
You eat a banana while studying for a test. Your body begins to digest the banana while you continue studying.
autonomic nerves
What are the different layers that protect the brain and spinal cord?
bone cerebrospinal fluid meningeal layers
Neurons are
cells that consist of a dendrite, axon, and axon terminal.
Glial cells are
cells that support neurons.
_____________________________ can result from inadequate blood flow to the nerves due to damaged blood vessels.
diabetic neuropathy
The _______________ is the touch outer layer that protects the brain.
dura
