SPLH 620 exam 1 Questions With Complete Solutions
2 mechanisms that keep PSP short Correct Answers reuptake
and enzymatic deactivation
2 methods of opening channels Correct Answers direct:
involves transmitter gated ion channels
-inotropic receptors
-fast transmission
indirect involves post-synaptic receptors liked to g-proteins
- metabotropic receptors
-slow transmission
2 modalities of proprioception Correct Answers position sense
(the sense of stationary position)
- kinesthesia ( the sense of movement)
2 types of membrane refractory periods Correct Answers
absolute and relative
2 types of post-synaptic potentials? Correct Answers epsp
ipsp
3 general parts of sensory receptors Correct Answers -
receptive area(may have specializations suited for adequate
stimulus)
- area rich in mitochondria (near receptive area)
-synaptic area (in CNS)
, 3 main modalities of somatosensation Correct Answers
discriminative touch, pain, and temperature, and proprioception
3 neuron system of somatosensory pathways Correct Answers
1st order: has cell body in cranial nerve or dorsal root (spinal)
ganglia
2. has cell body located in brainstem or spinal cord
3. has cell body located in thalamus
3 parts of the proprioceptive system Correct Answers 1.
muscle spindle receptors
2. golgi tendon organs
3. joint capsule receptors
4 types of mechanoreceotors Correct Answers - meissner
corpusclces
- ruffini endings
- merkel nerve endings (merkel discs)
- picinian corpuscles
acetylcholine Correct Answers lower motor neurons
-fast excitatory
action potential peak Correct Answers -40mV
adequate stimulus Correct Answers type of stimulus top which
the receptor is most sensitive
ALS pathway Correct Answers anterolateral system
- pain, temperature, tickle, itch
- small diameter, myelinated and unmyelinated fibers
2 mechanisms that keep PSP short Correct Answers reuptake
and enzymatic deactivation
2 methods of opening channels Correct Answers direct:
involves transmitter gated ion channels
-inotropic receptors
-fast transmission
indirect involves post-synaptic receptors liked to g-proteins
- metabotropic receptors
-slow transmission
2 modalities of proprioception Correct Answers position sense
(the sense of stationary position)
- kinesthesia ( the sense of movement)
2 types of membrane refractory periods Correct Answers
absolute and relative
2 types of post-synaptic potentials? Correct Answers epsp
ipsp
3 general parts of sensory receptors Correct Answers -
receptive area(may have specializations suited for adequate
stimulus)
- area rich in mitochondria (near receptive area)
-synaptic area (in CNS)
, 3 main modalities of somatosensation Correct Answers
discriminative touch, pain, and temperature, and proprioception
3 neuron system of somatosensory pathways Correct Answers
1st order: has cell body in cranial nerve or dorsal root (spinal)
ganglia
2. has cell body located in brainstem or spinal cord
3. has cell body located in thalamus
3 parts of the proprioceptive system Correct Answers 1.
muscle spindle receptors
2. golgi tendon organs
3. joint capsule receptors
4 types of mechanoreceotors Correct Answers - meissner
corpusclces
- ruffini endings
- merkel nerve endings (merkel discs)
- picinian corpuscles
acetylcholine Correct Answers lower motor neurons
-fast excitatory
action potential peak Correct Answers -40mV
adequate stimulus Correct Answers type of stimulus top which
the receptor is most sensitive
ALS pathway Correct Answers anterolateral system
- pain, temperature, tickle, itch
- small diameter, myelinated and unmyelinated fibers
