University of Missouri-Kansas City Neurophysiology V
Questions With Complete Solutions
__________ __________ focuses the site of
stimulation/sensation Correct Answer lateral inhibition
_______________ generate graded potentials called receptors
potentials in response to a stimulus Correct Answer
modalities
a decrease overtime in the magnitude of the receptor potential in
the presence of a constant stimulus; degree of this varies greatly
between different types of sensory receptors Correct Answer
adaptation
A neuron that receives sensory input from multiple sensory
receptors Correct Answer polymodal neuron
a persons understanding and awareness of the sensation (ex.
sensation of pain vs. perception of an achy joint) Correct
Answer perceptions
a single afferent neuron and all the sensory receptors it is
connected to Correct Answer sensory unit
ability to locate/discern the location of a stimulus from an
adjacent stimulus Correct Answer ACUITY
ability to perceive 2 points on the skin Correct Answer tactile
acuity
, Acuity is a function of what 4 things? Correct Answer
receptive field size, number, amount of overlap, lateral
inhibition
area of the body that activates a particular sensory unit Correct
Answer receptive field
Areas of the body with a HIGH tactile acuity have a (low/high)
two point value Correct Answer low
Areas of the body with a LOW tactile acuity have a (low/high)
two point value Correct Answer high
both visceral and somatic afferents converge onto the same 2nd
order neurons; the brain is "confused" and you feel pain from an
internal organ as another area of the body; feel pain in somatic
area that is most usual source of pain input Correct Answer
referred pain
cold chemical Correct Answer methanol
congenital illness that leads to frequent physical injuries, absent
or reduced sense of smell, lack of pain/temperature sensation,
inability to feel foreign objects in eye, mouth injuries;
complications include severe injury, infections, deformed bone
Correct Answer congenital analgesia
contain free nerve endings with C and Ad fibers, respond to
tissue damage, heat, inflammation, multi-step process that
causes Na+ channels to open/generate AP; widespread in skin,
dense in periosteum, arterial walls, joint surfaces, brain
Questions With Complete Solutions
__________ __________ focuses the site of
stimulation/sensation Correct Answer lateral inhibition
_______________ generate graded potentials called receptors
potentials in response to a stimulus Correct Answer
modalities
a decrease overtime in the magnitude of the receptor potential in
the presence of a constant stimulus; degree of this varies greatly
between different types of sensory receptors Correct Answer
adaptation
A neuron that receives sensory input from multiple sensory
receptors Correct Answer polymodal neuron
a persons understanding and awareness of the sensation (ex.
sensation of pain vs. perception of an achy joint) Correct
Answer perceptions
a single afferent neuron and all the sensory receptors it is
connected to Correct Answer sensory unit
ability to locate/discern the location of a stimulus from an
adjacent stimulus Correct Answer ACUITY
ability to perceive 2 points on the skin Correct Answer tactile
acuity
, Acuity is a function of what 4 things? Correct Answer
receptive field size, number, amount of overlap, lateral
inhibition
area of the body that activates a particular sensory unit Correct
Answer receptive field
Areas of the body with a HIGH tactile acuity have a (low/high)
two point value Correct Answer low
Areas of the body with a LOW tactile acuity have a (low/high)
two point value Correct Answer high
both visceral and somatic afferents converge onto the same 2nd
order neurons; the brain is "confused" and you feel pain from an
internal organ as another area of the body; feel pain in somatic
area that is most usual source of pain input Correct Answer
referred pain
cold chemical Correct Answer methanol
congenital illness that leads to frequent physical injuries, absent
or reduced sense of smell, lack of pain/temperature sensation,
inability to feel foreign objects in eye, mouth injuries;
complications include severe injury, infections, deformed bone
Correct Answer congenital analgesia
contain free nerve endings with C and Ad fibers, respond to
tissue damage, heat, inflammation, multi-step process that
causes Na+ channels to open/generate AP; widespread in skin,
dense in periosteum, arterial walls, joint surfaces, brain
