Nervous System Flashcards
neurons
Simulates and carries electrical impulse
Neuroglia
Non excitable cells.
Why does a neuron have alot of rough ER?
For a a lot of protein
Dendrites
carry information toward the cell body
What carries information away from the cell body in a neurons ?
axon
What helps speed up excitation down the axon ?
Myron sheet
What Bipolar neurons are only in specialised places and where ?
Bipolar, Retina and Olfactory mucosa
Where are interneurons found ?
Found in between makes up most of the neurons
What has faster Myelinated axons or non- Myelinated axons
Myelinated axons
Gliomas
neurons have the limited ability to regenerated or undergo mitosis as a result most Brian tumor are derived from glial cells
What are common for most nerves?
That they are both sensory and motor neurons
ruim means what ? . Ending of names
rium means nerves
Whats a synapses? Where is this site ?
Site where neurons communicate with each other. Between the dendrites and axons terminals
Sensory input
Sensory receptors monitor internal
and external stimuli. Think of someone seeing a class of water and realseing they want too drink it
What is integration ?
This brain makes sense of the input and dictates a response
Motor output
Muscles moving in response
What is the CNS and what types of responses would occur here ?
Integration and interpretation of sensory input
Dictates motor response
Brain and spinal cord
What is the Peripheral Nervous System (PNS) and what occur here
Neurons transport sensory input toward
CNS & motor output away from CNS
* Includes cranial and spinal nerves
We have the saying sensory in motor out what would be the sensory in?
afferent
We have the saying sensory in motor out would be the motor out ?
Efferent (motor) division
What would be nerves called that are associated with the body regions they server ORGANS?
Visceral functions
What would be nerves called that are associated with the body regions they server NOT ORGANS?
Somatic functions
What structure of cell is mostly CNS and is motor Nerouns and internerouns
Multipolar structure
Describe the shape of a bipolar neuron? If you have to draw.
single dendrite, one axon attached to cell body