Chapter 10 Flashcards
SATA senses
Special: vision, hearing, equilibrium, taste, smell
General: pressure, touch, propeioception
When sensory receptors are exposed to a continuous and I’m unimportant stimulus.
Often adjust so sensation becomes acute
Sensory adaptation
Tears produced to lubricate the eye and contain an enzyme that protects against infection
Lacrimal glands
Branch of the trigeminal nerve
Carries impulse of pain
Ophthalmic
Largest nerve
Supplies voluntary and involuntary motor impulses to most eye muscles
Oculomotor nerve
Middle tunic is the vascular tunic, consisting mainly of
Choroid
Has many blood cells
Colored part of eye ball
Choroid
How many extrinsic eye muscles does each eye have
6
Optic disk
Blind spot
Centers job to invert images
Brains visual centers
Highly sensitive to light
Function best in dim light
Rods
Function best in bring light
Sensitive to color
Give sharp images
Cones
Cones are especially tiny depressed areas near which optic nerve
Fovea centralis
Sensitive to red green or blue
Color blindness results from deficiency of
Retinal cones
Medical dr
Ophthalmologist