Somatic Impuses use....
efferent neuron pathways to pass through spinal cord, thalamus, brain stem, and cerebral cortex to be remembered and be made conscioulsy aware of
Conscious special sensations
may be taste, smell, touch, preasure, sound, sight
Special Sensations specific sensory neurons in...
specific sensory organs...Help awareness of environmental stimuli of heostatic reasons. Health, Protection
becoming aware of something via the senses
the faculty through which the external world is apprehended
the property of being selective
the process whereby a transducer accepts energy in one form and gives back related energy in a different form
relating to sense of taste
pertaining to the sense of smell
Chemoreceptors used for....
Smell and Taste
Thermoreceptors used for....
body temperature regulation
Proproreceptors used for...
posture and body position-skeletal muscles
nociceptors used for....
Interoreceptors and Exteroreceptors used for...
control of visceral organ systems
Retina is used for...
focus of light waves concentrated and directed as light comes in through lens
Aqueous Humor is used for....
Fluid behind front covering cornea to keep shape of eyeball
Iris around opening called Pupil is used for...
allowing eye to adjust to different light amounts
the clear tissue that covers the front of the eye
Ganglionated axons form what?
Blood Vessels run through....
optic nerve at back of eye into eye internally into aqueous humor
Optic nerves formed by ganglion cells...
extend out of the back of the eye at optic disc
Location of rods and cones as photoreceptors.....
in retinal area on back of eye; and used for perifphereal vision
jellylike substance found behind the lens in the posterior cavity of the eye that maintains its shape
Seeing blue, red, green color wavelengths; Used for best visual acuity; Switch from dim light or darkness to bright light for better visual acuity
Location of Focus of light waves...
onto fovea centrailis for best focus
Covering of conjunctiva over white of eye and inside eyelid....
to release lubrication for eye
Optic disc where optic nerve enters back of eye...
where no photoreceptors are "Blind Spot"
Cornea on front of eye for....
protection of front of eye-avascular
Used of Lens....
refract light waves to focal point twoard retina area of eye
bending of a ray of light
a likeness in which left and right are reversed, the ability to reflect beams or rays
Eyelids, eyelashes, sebaceous oil glands, lacrimal glands
Cause of tears
Lacrimal glands when someone has a cold
Order of eyeball areas as light is passed through to be focused
cornea and aqueous humor hits the lens and then focuses in a normal eye
inflammation of the middle ear
Increased pressure in the eye
Slow recovery of vision after flashes of bright light at night; an early symptom of vitamin A deficiency
nearsightedness; lack of foresight
farsightedness, blurring of close images