Nervous System Basics
This system is the body's control system
What is the Nervous System
This part of the neuron may also be called the soma
What is the cell body
These neurons carry impulses from the CNS to target organs
What are motor neurons
This is the primary organ of the CNS and contains grey and white matter
What is the brain
This system is responsible for relying information to and from the CNS and includes 31 pairs of spinal nerves
What is the PNS (Peripheral Nervous System)
Maintaining a stable set of conditions needed for survival is know as
What is homeostasis
These short, branching extensions receive incoming impulses
What are dendrites
These neurons detect stimuli at receptors and send information to the CNS
What are sensory neurons
This is the largest part of the brain, making up about 85% of it mass
What is the cerebrum
This division of the PNS is responsible for voluntary movement and reflexes
What is the Somatic Nervous System
The two major divisions of the nervous system are the CNS (Central Nervous System) and the
What is the PNS (Peripheral Nervous System)
This part of the neuron generates impulses and conducts them away from the cell body
What is the axon
These neurons carry impulses between motor and sensory neurons
What are interneurons
This part of the brain is connected to the brainstem and contains about half of the brain's neurons
What is the cerebellum
This division of the PNS regulates involuntary and unconscious body functions
What is Autonomic Nervous System
This type of matter mostly contains neuron cell bodies
What is grey matter
These button shaped endings of the axon connect with other nerve cells
What are the axon terminal buttons
Motor neurons are also know as
What is efferent neurons
Damage to this part of the brain often results in a coma or death because it is essential to maintaining vital functions
What is the brainstem
This division of the Autonomic Nervous System activates the "fight or flight" response
What is the Sympathetic division
This type of matter contains mostly neuron axons
What is white matter
This protective covering insulates the axon and helps impulses travel quickly
What is the myelin sheath
Interneurons are also know as
What are associative (central) neurons
This long, tubular bundle of nervous tissue extends from the brain into the vertebral column
What is the spinal cord
The spinal cord connects the CNS to this network of nerves branching from the brain and spinal cord
What is the (PNS) Peripheral Nervous System