Special and General Senses
Types of Receptors
Vision
Vision Disorders
I'm Feeling Lucky
100
A person's view of a stimulus is known as...
perception
100
What is the formal name for pain receptors?
nociceptors
100
This part of the eye is responsible for secreting tears
Lacrimal glands
100
The disorder in which some parts of an image are clear- and some parts are blurry is called
an astigmatism
100
The sets of color receptors within the retina are sensitive to lights of what 3 colors?
Blue
Green
Red
200
When a person is able to pinpoint a region being stimulated on their body, this is called...
projection
200
What is the main function of sensory receptors?
to gather information from the inside/outside environment
200
This portion of the retina is the region which produces the sharpest vision
fovea centralis
200
Glaucoma is the result of damage to the optic nerve caused by what?
Increased pressure in the eye due to buildup of aqueous humor
200
What is the name of the pigment found in the rods?
Rhodopsin
300
General senses are generally distributed in what type of pattern throughout the body?
widely distributed
300
What type of receptor is an olfactory (smell) receptor?
chemoreceptor
300
This part of the eye is responsible for putting objects into focus.
the lens
300
Cataracts are the clouding of the normally clear lens of the eye. What is the treatment for cataracts?
Surgery. The clouded lens of the eye is removed and replaced with an artificial lens
300
DAILY DOUBLE: Describe stereoscopic vision. Use the picture below to guide your answer. 
3D vision!
Images in the eyes are different, brain interprets the images in three dimension
400
Name the four special senses.
Where are they found?
Smell/Taste/Hearing/Sight. In the head.
400
Describe pain receptors.
1. Widely distributed throughout the body 2. They provide protection 3. The brain has no pain receptors
400
What is the function of the iris and the pupil?
Iris- muscles that control the size of the pupil
Pupil- controls the amount of light entering the eye
400
What causes HYPERopia (far-sightedness)?
The eyeball is too short, and light rays focus behind the retina
400
Sensory adaptation is when you adapt or get used to something. Ex: When you first enter the spa the water may feel VERY hot, but within a minute or so, it doesn't feel as hot.
Pain receptors differ from other receptors in one MAJOR way in regards to sensory adaptation. What is it?
You "adapt" to pain very little ( if at all )
500
A feeling that occurs when the brain becomes aware of a sensory impulse is known as
sensation
500
Describe what each of the 5 receptors respond to.
chemoreceptors- chemicals
thermoreceptors- temperature
mechanoreceptors- mechanical forces
photoreceptors- light
pain receptors/nociceptors- tissue damage
500
Describe Rods vs. Cones
Rods: vision in dim light, colorless vision, shapes or outlines of images
Cones: vision in bright light, color vision, sharp images
500
If a person's LEFT visual cortex is damaged (teal), where would we expect damage to the visual field in EACH eye? Use the picture below to guide your answer. 
LEFT EYE: Damage to temporal field of view
RIGHT EYE: Damage to nasal field of view
500
When the lights suddenly turn on after the room was dark (like during a movie), why does it take some time to adjust to this new amount of light?
It takes time for the rhodopsin to decompose and for you to become "light adapted"