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Mrs. B's Nervous System Review
N/A
35
Anatomy
9th Grade
09/14/2012

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Cards

Term
Autonomic Nervous System
(ANS)
Definition
Controls all of the body's automatic functions.
Term
motor neuron
Definition
Neurons that send muscle messages to move.
Term

Central Nervous System

(CNS)

Definition
Made up of the brain and spinal cord.
Term
meninges
Definition
Three layers of membranes that protect the brain.
Term
interneuron
Definition
A neuron that relays messages between sensory and motor neurons.
Term
neuron
Definition
A nerve cell.
Term
spinal nerve
Definition
33 pairs of nerves that branch off of the spinal cord and are part of the peripheral nervous system.
Term

Somatic Nervous System

(SNS)

Definition
Controls voluntary actions. (Actions you have control over.)
Term
Peripheral Nervous System
(PNS)
Definition
Made up of all nerves that connect to the brain and spinal cord.
Term
cerebellum
Definition

Part of the brain resoponsible for balance, movement, and coordination.

[image]

Point to the cerebellum.

 

Term
cerebrum
Definition

Largest part of the brain, and is responsible for thinking, learning, and memory.

 

[image]

 

Point to the cerebrum.

Term
spinal cord
Definition
A long tube of neurons that connect the brain with the body.
Term
sensory neuron
Definition
A type of neuron that brings information in from then outside world.
Term
cranial nerves
Definition
12 pairs of nerves that branch off of the brain.
Term
reflex
Definition
An automatic response to a stimuli. 
Term
nerve impulse
Definition
An electrical message sent between neurons.
Term
synapse
Definition
The space between the end of an axon of a neuron and the dendrite of another neuron.
Term
dendrites
Definition
Short fibers on a neuron that carry messages toward the cell body.
Term
brainstem (medulla)
Definition
Deepest part of the brain that is responsible for all involuntary (no concious control) actions of the body.
Term
axon
Definition
The Long part of a neuron that carries impulses away from the cell body.
Term
myelin
Definition
A fatty sheath that covers the axon of a neuron and helps speed impulses along.
Term
What three main structures protect the brain?
Definition
cranium (skull), cerebrospinal fluid, and meninges
Term
cerebrospinal fluid
Definition
A fluid that surrounds the brain and spinal cord to help aid in protection.
Term
What are the three main parts of the nervous system?
Definition
brain, spinal cord, and neuron
Term
hypothalamus
Definition
Tiny part of the brain found in the brainstem, responsible for water balance and body temperature.
Term
thalamus
Definition
Tiny part found in the brainstem, responsible for relaying the senses.
Term
meningitis
Definition
Can be a bacterial or viral infection that causes inflamation and swelling of the meninges that help protect the brain. 
Term
multiple sclerosis
Definition
A nervous system disorder in which the myelin that covers the axon of a nervous slowly deterioates, causing nerve impulse to get lost or stop.
Term
paralysis
Definition
Loss of movement in a part of the body.
Term
quadreplegia
Definition
Paralysis of all 4 limbs of the body.
Term
paraplegia
Definition
Paralysis of two  limbs of the body.
Term
siezure
Definition
A sudden storm of nerve impulses.
Term
epilepsy
Definition
A nervous system disorder characterized by frequent siezures.
Term
coma
Definition
A prolonged period of unconsiousness.
Term
concussion
Definition
Loss of consciousness caused from a hard blow to the head.
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