UCONN PNB 2264 EXAM 3 WITH 100%
CORRECT ANSWERS
Which type of movement is likely to be primarily coordinated by a central pattern
generator (CPG) in the spinal cord? - Answer- Running around the bases
The release of __________ from pain afferents may be inhibited when analgesic
neurons synapse with __________ and block __________ . - Answer- Substance P;
afferent axon terminals; calcium channels
Damage to the blood-brain barrier can cause _________ to move from blood to
cerebrospinal fluid, leading to ___________ of neurons. - Answer- K+; depolarization
The ___________ divides frontal from parietal lobe. - Answer- Central sulcus
The ______________ branches from the internal carotid artery, and is a common stroke
(Cerebrovascular Accident/CVA) location. A CVA involving this vessel will cause
contralateral hemiplegia. - Answer- Middle cerebral artery
Which retinal cells use lateral inhibition to refine information coming from receptors in
the retina? - Answer- Horizontal cells
Axons of third order neurons in the ascending somatosensory pathways plus axons of
descending primary motor cortex (M1) neurons travel together in this tract: - Answer-
Internal capsule
In order to focus upon _______ objects, the lens becomes more rounded when
__________ . - Answer- Close; suspensory ligament (zonular fibers) relaxes
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
CORRECT ANSWERS
Which type of movement is likely to be primarily coordinated by a central pattern
generator (CPG) in the spinal cord? - Answer- Running around the bases
The release of __________ from pain afferents may be inhibited when analgesic
neurons synapse with __________ and block __________ . - Answer- Substance P;
afferent axon terminals; calcium channels
Damage to the blood-brain barrier can cause _________ to move from blood to
cerebrospinal fluid, leading to ___________ of neurons. - Answer- K+; depolarization
The ___________ divides frontal from parietal lobe. - Answer- Central sulcus
The ______________ branches from the internal carotid artery, and is a common stroke
(Cerebrovascular Accident/CVA) location. A CVA involving this vessel will cause
contralateral hemiplegia. - Answer- Middle cerebral artery
Which retinal cells use lateral inhibition to refine information coming from receptors in
the retina? - Answer- Horizontal cells
Axons of third order neurons in the ascending somatosensory pathways plus axons of
descending primary motor cortex (M1) neurons travel together in this tract: - Answer-
Internal capsule
In order to focus upon _______ objects, the lens becomes more rounded when
__________ . - Answer- Close; suspensory ligament (zonular fibers) relaxes
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
