603 WK 1 - Class Content Questions complete study
The right optic nerve has info from which visual field(s)? - correct answer right and left visual
field
The left optic nerve has info from which visual field(s)? - correct answer right and left visual
field
The right optic nerve has info from which eye(s)? - correct answer right
The left optic nerve has info from which eye(s)? - correct answer left
at the optic chiasm does the nasal or temporal component cross? - correct answer nasal
the right optic tract has info from which visual field(s)? - correct answer left visual field
the left optic tract has info from which visual field(s)? - correct answer right visual field
the right optic radiation has info from which visual field(s)? - correct answer left visual field
the left optic radiation has info from which visual field(s)? - correct answer right visual field
the left thalamus has info from the ______ nasal component and ______ temporal component
- correct answer right nasal
left temporal
the right visual field
the right thalamus has info from the ______ nasal component and ______ temporal
component - correct answer left nasal
right temporal
the left visual field
the left and right optic radiations send information to - correct answer primary visual cortex
the retina detects _______ - correct answer light
the upper visual field enters the _____ retina - correct answer lower
the lower visual field enters the ______ retina - correct answer upper
after the upper VF enters the lower retina it stays ______ - correct answer low
after the lower VF enters the upper retina it stays _____ - correct answer up
,upper VF info is perceived by the _____ primary visual cortex - correct answer lower
lower VF info is perceived by the _____ primary visual cortex - correct answer upper
does the upper VF include info from the right and/or left visual field - correct answer right and
left
what are the 5 types of sensation - correct answer 1. somatic
2. vision
3. audition (hearing)
4. vestibular
5. chemical sense (smell, taste)
what sensations are included in somatic sensation? - correct answer - light touch, pressure,
vibration
- proprioception (limb position)
- pain, temp, crude touch
what is transduction? - correct answer the conversion of a stimulus into an electrical impulse
- the stimulus triggers an AP on the sensory receptor membrane, which initiates its
transmission along the neuroaxis
what is transmission - correct answer the propagation of the electrical impulse created by a
stimulus
- from the tissues to the brain
What is modulation? - correct answer the alteration of impulse transmission along neuroaxis
What is perception? - correct answer the impulse interpretation
- includes not only sensory impulse reception but also the consolidation of many other inputs
(ex: emotional)
somatosensory afferents convey info from __________ to _________ circuits - correct answer
periphery to central
what is sensory transduction? - correct answer process of converting energy of a stimulus into
an electrical signal
in sensory transduction, a stimulus alters the _________________ of cation channels in the
________ nerve ending - correct answer permeability
afferent
, sensory transduction generates a depolarizing current called: _______ _______ - correct
answer receptor potential
if depolarization is of sufficient magnitude during sensory transduction, __________ _________
is generated in the ___________ fiber - correct answer action potential
afferent
afferent fibers are often _______________ by specialized receptor cells called
________________ - correct answer encapsulated
mechanoreceptors
encapsulated afferent endings typically have _______ ______________ for AP generation -
correct answer lower threshold
free nerve endings do not have __________________ receptor cells and they have ________
touch - correct answer specialized, crude
________ _________ and ____________ influence the speed of transmission - correct answer
axon diameter and myelin
afferent fibers that provide touch sensation are _________ than proprioception fibers (muscle
spindle) - correct answer smaller
receptive field size reflects ____________ _______ - correct answer innervation density
hair cell is an example of what receptor? - correct answer mechanoreceptor
What tells us of linear acceleration of the head? - correct answer otolith organ
What is the resting membrane potential? - correct answer -70mV
What change in resting membrane potential do you need for an action potential? - correct
answer 15mV change
In a large receptive field in 2 point discrimination test, the two stimulus would be felt as ______
point(s) - correct answer one
In a small receptive field in 2 point discrimination test, the two stimulus would be felt as ______
point(s) - correct answer two
Feet and legs on the _______ side of the sensory homunculus - correct answer medial
Arms are on the _______ side of the sensory homunculus - correct answer lateral
Face in the _______ of the sensory homunculus - correct answer middle
what are slowly adapting afferents? - correct answer they do NOT stop firing
The right optic nerve has info from which visual field(s)? - correct answer right and left visual
field
The left optic nerve has info from which visual field(s)? - correct answer right and left visual
field
The right optic nerve has info from which eye(s)? - correct answer right
The left optic nerve has info from which eye(s)? - correct answer left
at the optic chiasm does the nasal or temporal component cross? - correct answer nasal
the right optic tract has info from which visual field(s)? - correct answer left visual field
the left optic tract has info from which visual field(s)? - correct answer right visual field
the right optic radiation has info from which visual field(s)? - correct answer left visual field
the left optic radiation has info from which visual field(s)? - correct answer right visual field
the left thalamus has info from the ______ nasal component and ______ temporal component
- correct answer right nasal
left temporal
the right visual field
the right thalamus has info from the ______ nasal component and ______ temporal
component - correct answer left nasal
right temporal
the left visual field
the left and right optic radiations send information to - correct answer primary visual cortex
the retina detects _______ - correct answer light
the upper visual field enters the _____ retina - correct answer lower
the lower visual field enters the ______ retina - correct answer upper
after the upper VF enters the lower retina it stays ______ - correct answer low
after the lower VF enters the upper retina it stays _____ - correct answer up
,upper VF info is perceived by the _____ primary visual cortex - correct answer lower
lower VF info is perceived by the _____ primary visual cortex - correct answer upper
does the upper VF include info from the right and/or left visual field - correct answer right and
left
what are the 5 types of sensation - correct answer 1. somatic
2. vision
3. audition (hearing)
4. vestibular
5. chemical sense (smell, taste)
what sensations are included in somatic sensation? - correct answer - light touch, pressure,
vibration
- proprioception (limb position)
- pain, temp, crude touch
what is transduction? - correct answer the conversion of a stimulus into an electrical impulse
- the stimulus triggers an AP on the sensory receptor membrane, which initiates its
transmission along the neuroaxis
what is transmission - correct answer the propagation of the electrical impulse created by a
stimulus
- from the tissues to the brain
What is modulation? - correct answer the alteration of impulse transmission along neuroaxis
What is perception? - correct answer the impulse interpretation
- includes not only sensory impulse reception but also the consolidation of many other inputs
(ex: emotional)
somatosensory afferents convey info from __________ to _________ circuits - correct answer
periphery to central
what is sensory transduction? - correct answer process of converting energy of a stimulus into
an electrical signal
in sensory transduction, a stimulus alters the _________________ of cation channels in the
________ nerve ending - correct answer permeability
afferent
, sensory transduction generates a depolarizing current called: _______ _______ - correct
answer receptor potential
if depolarization is of sufficient magnitude during sensory transduction, __________ _________
is generated in the ___________ fiber - correct answer action potential
afferent
afferent fibers are often _______________ by specialized receptor cells called
________________ - correct answer encapsulated
mechanoreceptors
encapsulated afferent endings typically have _______ ______________ for AP generation -
correct answer lower threshold
free nerve endings do not have __________________ receptor cells and they have ________
touch - correct answer specialized, crude
________ _________ and ____________ influence the speed of transmission - correct answer
axon diameter and myelin
afferent fibers that provide touch sensation are _________ than proprioception fibers (muscle
spindle) - correct answer smaller
receptive field size reflects ____________ _______ - correct answer innervation density
hair cell is an example of what receptor? - correct answer mechanoreceptor
What tells us of linear acceleration of the head? - correct answer otolith organ
What is the resting membrane potential? - correct answer -70mV
What change in resting membrane potential do you need for an action potential? - correct
answer 15mV change
In a large receptive field in 2 point discrimination test, the two stimulus would be felt as ______
point(s) - correct answer one
In a small receptive field in 2 point discrimination test, the two stimulus would be felt as ______
point(s) - correct answer two
Feet and legs on the _______ side of the sensory homunculus - correct answer medial
Arms are on the _______ side of the sensory homunculus - correct answer lateral
Face in the _______ of the sensory homunculus - correct answer middle
what are slowly adapting afferents? - correct answer they do NOT stop firing
