NSCI 225 EXAM 1 | QUESTIONS AND ANSWERS |
WITH COMPLETE SOLUTION.
100% Correct 97
Incorrect 0
1 of 97
Definition
Na channels open, Na flows into cell (depolarize, less neg)
--> K channels open @ equilibrium (hyperpolarize, more
pos) --> Na channels refractory at max mV (channels close)
--> ion pump returns cell to resting potential (repolarize, 3
Na in, 2 K out) --> NT released at synapse, process starts
over
Give this one a try later!
All or nothing rule AP steps
Forced choice Action
Don't know?
2 of 97
,Definition
receptors adapt at different rates
--> cones adapt faster to level off sooner (around 7 mins, less
sensitive)
--> rods continue adapting and adapt more (around 20 mins,
more sensitive)
Give this one a try later!
dark adaptation curve neuron communication
myopia (symptom, cause, fix) LGN signal modulation
Don't know?
3 of 97
Definition
"is that something i've seen before?" - perception
driven by cognition
brain applies what it knows/expects to perceive to fill in the
blanks
Give this one a try later!
parallel processing top-down processing
bottom-up processing transduction
, Don't know?
4 of 97
Definition
daytime- blues/greens and reds look same brightness b/c
not large diff in cone sensitivity
nighttime- blues/greens look brighter than reds b/c rods are
more
sensitive to 500 nm light
--> still can't tell color, but brightness is diff between colors
Give this one a try later!
purkinjie shift hyperopia
macular degeneration lens accommodation
Don't know?
5 of 97
Definition
where nerves (axons of G cells) exit the eye
Give this one a try later!
retina auditory nerve
, optic nerve optic chiasm
Don't know?
6 of 97
Definition
remove clouded lens, insert artificial lens
--> have to wear bifocals post-surgery b/c artificial lens
can't accommodate
Give this one a try later!
all or nothing rule gallbladder surgery
glaucoma surgery cataract surgery
Don't know?
7 of 97
Definition
smallest amount of stimulus necessary to detect the stim
Give this one a try later!
WITH COMPLETE SOLUTION.
100% Correct 97
Incorrect 0
1 of 97
Definition
Na channels open, Na flows into cell (depolarize, less neg)
--> K channels open @ equilibrium (hyperpolarize, more
pos) --> Na channels refractory at max mV (channels close)
--> ion pump returns cell to resting potential (repolarize, 3
Na in, 2 K out) --> NT released at synapse, process starts
over
Give this one a try later!
All or nothing rule AP steps
Forced choice Action
Don't know?
2 of 97
,Definition
receptors adapt at different rates
--> cones adapt faster to level off sooner (around 7 mins, less
sensitive)
--> rods continue adapting and adapt more (around 20 mins,
more sensitive)
Give this one a try later!
dark adaptation curve neuron communication
myopia (symptom, cause, fix) LGN signal modulation
Don't know?
3 of 97
Definition
"is that something i've seen before?" - perception
driven by cognition
brain applies what it knows/expects to perceive to fill in the
blanks
Give this one a try later!
parallel processing top-down processing
bottom-up processing transduction
, Don't know?
4 of 97
Definition
daytime- blues/greens and reds look same brightness b/c
not large diff in cone sensitivity
nighttime- blues/greens look brighter than reds b/c rods are
more
sensitive to 500 nm light
--> still can't tell color, but brightness is diff between colors
Give this one a try later!
purkinjie shift hyperopia
macular degeneration lens accommodation
Don't know?
5 of 97
Definition
where nerves (axons of G cells) exit the eye
Give this one a try later!
retina auditory nerve
, optic nerve optic chiasm
Don't know?
6 of 97
Definition
remove clouded lens, insert artificial lens
--> have to wear bifocals post-surgery b/c artificial lens
can't accommodate
Give this one a try later!
all or nothing rule gallbladder surgery
glaucoma surgery cataract surgery
Don't know?
7 of 97
Definition
smallest amount of stimulus necessary to detect the stim
Give this one a try later!
