QUIZ 6 Flashcards
NEURON(NERVE CELLS)
SEND AND RECEIVE MESSAGES ALONG NERVE PATHWAYS TO/FROM THE BRAIN TO THE REST OF THE BODY
CENTRAL NERVOUS SYSTEM is…
center,core
consists of
Brain
Spinal cord
Brain
large organ responsible for intelligence
spinal cord
cibtriks body reflexes-sends messages back and forth between body and brain
Peripheral nervous system
part of the nervous system made up of nerves that extend throughout the body and connect to the spinal cord.
Nerves(neuron fibers) receive and transmit nerve impulses (heat, pain, pressure etc)
Brain divided into two hemispheres
Damage on left side of brain effects the right side of the body
Iris
color part of eye
sclera
white part of eye
Pupil
circular opening in center of eye-reacts to light
Cornea
clear protective membrane covering the eyeball
eye disorders
cataracts -blurred vision(clouds develope over lense
-glaucoma- increased pressure in eye
-macular degeneration-slow deterioration in middle vision
Aging nervous system
-reflexes slower
-memory loss(short term especially
-sensitivity of nerve endings in skin diminish
-some hearing loss
-sense of vision, smell and taste weaken
CVA Cerebrovascular Accident
Stroke or “brain attack”
Tympanic membrane
eardrum
ossicles
3 tiny bones in the middle ear that pick up and transfer the vibrations to the inner ear
dysphagia
difficulty swallowing