Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
28 Cards in this Set
- Front
- Back
|
What fraction of the human brain is involved in visual processing?
|
1/4
|
|
|
Which part of the human eye does 3/4 of the focusing of an object?
|
Cornea
|
|
|
Once the image has passed through the cornea, what part of the eye adjusts the focus?
|
Lens
|
|
|
The image focused by the cornea and lens is then produced by the...
|
Photoreceptors
|
|
|
Where are the photoreceptors located?
|
The Retina
|
|
|
The image on the retina is reversed; True or False?
|
True. Both left and right and top and bottom.
|
|
|
Light enters the eye through wich part of the eye?
|
Pupil
|
|
|
Which part of the human eye controls pupil size?
|
Iris
|
|
|
How many photoreceptors are in each human eye?
|
about 125 million
|
|
|
What is the job of the Photoreceptors?
|
Turn light into electrical signals
|
|
|
There are two forms of photoreceptors...Name them.
|
Rods and Cones
|
|
|
Rods or Cones? Which type of photoreceptor is responsible for color vision?
|
Cones
|
|
|
Which three colors found in cones create the spectrum of colors we see?
|
Red, Green, and Blue.
|
|
|
What is the name of the part of the eye that translates the image between the retina and visual cortex?
|
Lateral Geniculate Nucleus
|
|
|
Where is the primary visual cortex located?
|
Occipital Lobe in the back of the brain
|
|
|
Strabismus and squint are terms for which eye impairment?
|
cross-eyed
|
|
|
What is the common name for the tympanic membrane?
|
eardrum
|
|
|
Attached to the tympanic membrane, what is the name of the hammer-like part of the ear that transmits vibration?
|
Malleus
|
|
|
Microscopic hairlike stereocilia are located in the snail-shaped part of the inner ear called the?
|
Cochlea
|
|
|
Which part of the brain is involved in perceiving sound?
|
Temporal Gyrus OR Auditory Cortex
|
|
|
The average person has approximately how many taste buds?
|
5,000 to 10,000
|
|
|
Which part of the brain is involved in perceiving taste?
|
Thalamus and Cerebral Cortex
|
|
|
Messages about tissue damage are picked up by receptors and transmitted to the spinal cord by?
|
myelinated and unmyelinated fibers.
|
|
|
Myelinated or Unmyelinated (C-Fibers)?
Which type of nerve fiber transmits sharp, fast pain such as a pinprick? |
Myelinated
|
|
|
Myelinated or Unmyelinated (C-Fibers)?
Which type of nerve fiber transmits dull, slow pain, such as a bruise? |
Unmyelinated, C-Fibers
|
|
|
What is the name of the type of sensory fiber that responds to stimuli that damage tissue?
|
Nociceptors
|
|
|
Pain is transmited up the spinal cord and to the brain by which system?
|
The ascending system.
|
|
|
Which system travels down the spinal cord and supresses pain signals by the release of endorphins?
|
The decending system.
|
