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;
64 Cards in this Set
- Front
- Back
If Gustation and olfaction both detect chemicals from the environment, why do we need both?
|
None of the above
Read the question |
|
Information from the temporal retinas does or does not cross over to the opposite side of the brain.
|
does not
|
|
A single photon of green light would cause the greatest response if it strikes...
|
A rod
|
|
The pupillary light reflex causes what?
|
Changes in lighting intensity to be perceived as less than what is actually occurring
|
|
If you tilted the head to the left what would happen?
|
As the head is tilted to the left, the eyes would rotate in their sockets to the right
|
|
Which refracts light first the cornea or the lens?
|
The cornea refracts light before the light is refracted by the lens
|
|
The fovea..... list 3 things
|
Does not work in low light conditions.
has ganglion cells w/ very SMALL receptive fields Is NOT in the center of the optic disc, its off to the side. |
|
If a Jasmine wanted to focus on a near object she would have to...
|
contract her ciliary muscles to allow her lens to become round.
|
|
Do axons of ganglion cells pass through the optic disc?
|
Yes! Its True
|
|
Potoreceptors are the only cells that can respond to light that can be consciously perceived. T or F
|
True
|
|
Ganglion cells are the only cells that can carry?
|
Visual information out of the eye
True |
|
Rods are more sensitive to light than are cones. T or F
|
True
|
|
In the dark, ON-bipolar cells are inhibited by photoreceptors T or F
|
True
|
|
A simple cell which responds most to a vertical bar of light...
|
does not respond as well to a horizontal bar of light because of less spatial summation.
|
|
Are there more than 4 basic tastes?
|
yes
|
|
T or F?
Taste receptor cells don't have axons. Taste receptor cells release neurotransmitter when excited. Taste receptor cells respond to more than one basic taste. |
True
True True |
|
Olfactory receptor cells have dendrites in the nasal cavity and axon terminals in the brain cavity. T or F
|
True
|
|
Odorants must diffuse through a mucus layer before being detected. T or F
|
True
|
|
cGMP is broken down in the transduction pathway for olfaction? T or F
|
False, ATP is changed to cAMP
|
|
Umami taste is the perception of glutamate in the saliva. T or F
|
True
|
|
Olfactory receptor cells are derived from basal cells? T or F
|
True
|
|
It is possible for a primary gustatory afferent neuron to respond to more than one basic taste. T or F
|
True, the gustatory afferent neuron is responding to all the glutamate that is being made my the taste receptor cells, wether it is salty or sweet.
|
|
Where is the Fovea located?
|
its a dimple just beside the optical nerve
|
|
The Vagus nerve carries taste information from the back of the throat. T or F
|
True
|
|
True or False? The periphery of your visual field is more sensitive to light than is the center of your vision.
|
False
|
|
True or False? Ganglion cells are closer to incoming light than are bipolar cells of the retina.
|
True
|
|
The ganglion cell that responds to light in the center is a?
|
On center recepterfield cell
|
|
The ganglion cell that responds to dark in the center is a?
|
Off Center recepterfield cell.
|
|
All taste information must pass through the Gustatory Nucleus before it can be perceived. T or F
|
True
|
|
T or F?
The glossopharyngel nerve carries taste information from the front 1/3 of the tongue? The facial nerve carries taste information from the middle 1/3 of the tongue? The vagus nerve carries taste info from the back 1/3 of the tongue? |
F from the back
F 2/3 from the front F from the throat |
|
T or F?
Taste buds are hollow cavities that contain taste receptor cells. |
True
|
|
A single odorant receptor cannot bind to all types of odorant molecules. T or F?
|
True
|
|
Olfactory receptor cells do not produce mucus. T or F?
|
True
|
|
T or F?
To smell an object it is not necessary for a molecule from that object to be in contact with you. |
False, it needs to touch olfactory receptors cells
|
|
T or F? A molecule detected through gustation will always be detected through olfaction as well.
|
False
|
|
While olfaction make use of population coding, gustation does not. T or F?
|
False, it does as well
|
|
Umami taste is sensing of?
|
Glutamate
|
|
The cornea bends light to help focus an image on the retina. T or F?
|
True
|
|
T or F?
Cerebral spinal fluid normally flows between the pia and arachnoid mater. |
True
|
|
T or F?
A subdural hematoma is when blood accumulates between the dura mater and the skull. |
False it is between the dura and the arachnoid.
|
|
T or F?
A rod can respond to more colors of visible light than can a green cone. |
True, were talking about visible light, rods detect all light, cones detect spacific light.
|
|
T or F?
In the light, photoreceptors are hyperpolarized, and OFF-bipolar cells are depolarized. |
False
|
|
What would happen if a person's photoreceptors could not produce any cGMP?
|
They could not detect any darkness because everything would appear light.
|
|
A person born with no blue or red cones....
|
Would detect a limited range of colors.
|
|
Bitter 2 is the only taste transduction pathway that does not use Ca2+ channels. T or F
|
True, it uses vessicles in the cell
|
|
Visual stimuli is sent to which part of the brain through the hypothalymus?
|
The Occipital lobe, located at the back of the brain
|
|
What is the part of the brain that deals with vital autonomic functions?
|
Pons located just below the brain and just above the spinal cord
|
|
Motor functions are sent from what part of the brain?
|
Frontal lobe
|
|
Auditory information is received by what part of the brain?
|
The Temporal Lobe
|
|
Sensory information will enter the dorsal part of the spinal cord. T or F?
|
True
|
|
Afferent (info into) neurons have their cell bodies just outside the spinal cord. T or F?
|
True
|
|
Blood accumulating between the dura and the arachnoid mater is a?
|
Subdural hematoma
|
|
If voltage gated Ca2+ channels in taste cells were all destroyed you would?
|
lose all but some bitter taste sensation.
|
|
Olfactory receptors are true neurons with axons extending through the bottom of the skull. T or F?
|
True
|
|
Are olfactory receptor cells replaced and if so how often and by what?
|
Yes they are replaced every 4 to 8 weeks and basal cells are made into these cells.
|
|
What do olfactory support cells do?
|
secret mucus which is replaced every 10 min.
|
|
The optic disc is the only way for visual information to leave the eye. T or F?
|
True, the optic disk is the "black hole" your vision fills in since there is no rods or cones in this area for vision.
|
|
Does the fovea have cones or rods?
|
Cones
|
|
Where is the fovea located?
|
a small dimple in the center of the retina.
|
|
The fovea has bipolar and ganglion cells pushed out of the way to create a clearer path for light. T or F
|
True, they are slanted
|
|
A person with an elongated eyeball would...
|
be far sighted and would see things easier that were far away.
|
|
In the light, photoreceptors ______ and ON center bipolar cells are _________.
|
hyperpolerized, depolarized
|
|
Typically light must first pass through ganglion and bipolar cells before hitting photoreceptors. T or F
|
False, light will hit them first but they don't function until the photoreceptors send them information.
|
|
If a person has a stroke which destroys their thalamus which sense would be left most intact?
|
Touch because vision, smell, and taste all come from the thalamus.
|