Page | 1
UCONN PNB 2264 EXAM 3 2026
QUESTIONS AND ANSWERS | A+
GRADED | WITH EXPERT SOLUTIONS
Which of the following are found in the dorsal root ganglia of
the spinal cord? - ANSWER-Cell bodies of primary afferent
(sensory) neurons
Sensory transduction is the process of converting - ANSWER-
Stimulus energy into a change in membrane potential
Increased intensity of a pressure stimulus (applied to the same
spot on your finger) is coded by ______ . - ANSWER-Increased
frequency of afferent action potentials
Two-point discrimination is _________ on the lips than on the
knee. One reason for this is that there is _________ overlap of
receptive fields on the lips. - ANSWER-Better; more
, Page | 2
A patient with an injury to the left brachial plexus would have
what symptoms? - ANSWER-Loss of both sensory and motor
function to the left upper extremity
Cell bodies of alpha motor neurons to skeletal muscle are
located in the ____________ of the spinal cord. - ANSWER-
Ventral horn
Which term best describes receptors that detect stimuli from
the external environment? - ANSWER-Exteroceptors
A sensory unit consists of - ANSWER-One afferent neuron and
all its receptors
Consider transmission of a discriminatory touch stimulus. As a
result of lateral inhibition, the ______________ is increased. -
ANSWER-Difference between firing rate of strongly activated
and less-strongly activated second order neurons
The diencephalon contains the ________ . - ANSWER-
Thalamus and hypothalamus
UCONN PNB 2264 EXAM 3 2026
QUESTIONS AND ANSWERS | A+
GRADED | WITH EXPERT SOLUTIONS
Which of the following are found in the dorsal root ganglia of
the spinal cord? - ANSWER-Cell bodies of primary afferent
(sensory) neurons
Sensory transduction is the process of converting - ANSWER-
Stimulus energy into a change in membrane potential
Increased intensity of a pressure stimulus (applied to the same
spot on your finger) is coded by ______ . - ANSWER-Increased
frequency of afferent action potentials
Two-point discrimination is _________ on the lips than on the
knee. One reason for this is that there is _________ overlap of
receptive fields on the lips. - ANSWER-Better; more
, Page | 2
A patient with an injury to the left brachial plexus would have
what symptoms? - ANSWER-Loss of both sensory and motor
function to the left upper extremity
Cell bodies of alpha motor neurons to skeletal muscle are
located in the ____________ of the spinal cord. - ANSWER-
Ventral horn
Which term best describes receptors that detect stimuli from
the external environment? - ANSWER-Exteroceptors
A sensory unit consists of - ANSWER-One afferent neuron and
all its receptors
Consider transmission of a discriminatory touch stimulus. As a
result of lateral inhibition, the ______________ is increased. -
ANSWER-Difference between firing rate of strongly activated
and less-strongly activated second order neurons
The diencephalon contains the ________ . - ANSWER-
Thalamus and hypothalamus
