decrease heart and respiratory rates, and allow for digestion and the discarding of wastes
What is Parasympathetic Tone
300
Support, Insulate, Cushion and protect neurons
Cannot transmitt nerve impulses
retain ability to divide
What is Neuroglia/ Glial Cells
300
formed by choroid plexus in each ventricle
like blood but no red blood cells
lower level in protien
supplies nutrients
protective fluid cushion
What is Cerebrospinal Fluid
300
function: From pons to pharynx, larynx, and abdominal and thoracic viscera
What is Cranial Nerve X: Vagus
300
Children are more likely to get an infection in this part of the ear
What is Auditory Ossicles
300
short preganglionic fibers
long postganglionic fibers
What is Sympathetic Fibers
400
excitable nerve cells specialized to transmit electrical signals.
Irritability
Conductivity
extreme longevity
Amitotic
High metabolic rate
What is Neurons
400
Progressive degenerative disease
abnormal protein deposits
symptoms: memory loss, irritability, confusion, and eventually hallucinations
What is Alzheimer's Disease
400
supplies both sensory and motor innervation to diaphragm
What is Phrenic Nerve
400
can be treated with a hearing aid
problem with sound wave transmission to fluids on inner ear
causes: impacted ear wax, perforated eardrum, otitis media, fussion of ossicles
What is Conduction Deafness
400
Increase GI tract activity
Performs maintenance activities
Conserve body energy
'D' actions
BP&Heart decreases
breathing decreases
What is Parasympathetic Nervous System
500
Progressive autoimmune disease that affects mostly young adults where myelin sheaths are gradually destroyed and reduced to nonfunctional hardened leasions
Basic functional unit of nervous system
capable of receiving stimuli, integrating the information and sending out motor commands based on stimulus
*unlearned and involuntary
What is Reflex
500
Low visual acuity
more sensitive to light
do not provide sharp images or color
high concentration in retina periphery
What is Rods
500
Innervates smooth and cardiac muscle and glands
make adjustments to ensure optimal support for body activities
operate subconscious control
have viscera as most of their effectors