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PNS-CNS-NS (PNS (Somatic sensory : :check: (Priopriocetion- Send signals…
PNS-CNS-NS
PNS
Visceral motor :check:
Smooth Musclce
Cardiac musclce
Glands
Exocrine- has ducts-->Skin
visceral Sensory :check:
Pain
Temperature
Stretch
Somatic sensory : :check:
Vibration
Touch
Priopriocetion- Send signals to CNS
From Body Wall, ligaments,
In Limbs
Skin
Somatic Motor :check:
Skeletal
Ganglia- Cluster of neuron cell body
Nerve- Collection of axon , group of neuron axon
Spinal Nerves
Ganglion AKA Neuroglians
Cranial Nerves
PNS-
PNS
CNs- Integration
Spinal Cord
Brain
White Matter
Gray Matter- Cortex
Deep Gray
Neuroglia
Microglia
Phagocytes of CNS
Clean up dead cells
mobile
Olingondrocyte
Myelinated
Wraps around many axon- only once
Signals travel faster
Astrocytes
Star shape
largest
Most abdundant
Help maintain the correct chemical environment
Ependymal Cells
Simple cuboidal columnar epithelium
Microvilli- absorb "Stuff"
Lines central + spinal cord
Satellite Cell
Provide support
Help regulate what enters & leaves the neuron cell
Shwawwn Cell
Myelinated/insulated
provides support
Nucleus
Cluster of neuron cell body
Tract
Cluster of axon
NS
Sensory recptors