Chapter 12 Test Flashcards
Name the larger papillae of the tongue
Circum vallate
Sour is best tasted in which portion of the tongue?
Sides
What type of sensory organs are the gustatory organs?
Taste
What type of stimulus is required for olfactory reception to occur?
A few molecules-chemical
Name the five primary taste sensations
Sour, sweet, salty, bitter, and umami
What is lacking in the blind spot so that it has no vision capability.
Rods and cones
Name structures that protect the eye
Eyebrows, eyelashes and eyelids
What is the term we use to describe the closest distance at which sharp focus is attained by the eyes?
Near point
The thin transparent mucous membrane covering the anterior of the eye and lining the eyelids
Conjunctiva
The ability of the eyes to focus together so that we see only one image and have depth perception
Binocular vision
A touch receptor is an example of this type of receptor
Mechanoreceptor
The process that adjusts the lens for near vision
Accommodation
Light energy initiates nerve impulses in what structure?
Retina
A sex linked trait; lacking cones
Color blindness
In what area of the eye are cones most densely concentrated
Central fovea
The colored part of the eye
Iris
A kind of pain often experienced by people suffering a heart attact
Referred
What receptors work to allow color vision
The 3 cones
What is the term we use to describe bringing each eye to focus at the same point?
Convergence
The bending of light rays as they pass from the air through the cornea and lens
Retraction
List the accessory structures of the eye
Eyebrows, eyelashes, lacrimal apparatus,and muscles
Where does most of our refraction occur
Cornea
The outermost layer of the retina that contains melanin to absorb light rays
Pigment epithelium
The structure that provides blood for the eye and absorbs scattered light
Choroid
