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Pedro Munoz Period 3 Nervous system - Coggle Diagram
Pedro Munoz Period 3 Nervous system
Major Functions of nervous system
sensory output: activation of muscles or glans in CNS to PNSin the body after needed action is assesed
integration: processing of stimuli in central nervous system assesing what output to give
sensory input: inut of stimuli from PNS to CNS into the nervous system by touch, smell, sight, hearing, or taste
Cranial nerves
vagus: regulate heart and lungs
accesory: innervate strernocleidomastoid and trapezius
glossopharyngeal:swallowing reflex
hypoglossal: toungue muscle nerve
vestibuloccular:auditory
facial: facial expression, taste, salivating and crying
abducens:lateral rectus muscle, back of eye
trigenimal:sensory impulses from face connects to pons and is the largest
troclear: eyeball muscles
oculomotor: blinking, eye muscles
optic:sight sensory
olfactory
Tissues
ependymal: squamous or columnar, allows for fluid bathing
PNS
ogligodendrocytes: sheathed CNS cells
satelite:func similar to astrocytes or CNS
Micrologial cells: small oviod, process and monitor neurons, migrate toward injured neurons, transforms to phagocytic microorgonisms and neurological debris
neuron cell body:biosynthetic center of neuron, synthesizes protiers, membrane, chem, ganglia is group of cell bodies in PNS and nuclei is in CNS
Astrocytes:Most abundant cenn, support and brace neurons, has a role in exchanging capilliaries and neurons, guides migration of young neurons, controlls chem env, responds to nerve impulses of neurotransmitters
Shwann cells:surrounds all peripheral nerve fibers and creates myelin sheaths , vital region of damaged peripheral nerve fibers
CNS
neurons: structural units of nervous system, largely specialized cells that conduct impulses, last a lifetime, migh metabolic rate, requires o2 and glucose, have a cell body and 1 or more processes.