EXSS 380 Final Exam Questions and Correct Answers 100% Verified Graded A+
Synapse - The term the describes the point of communication between an axon of cell A
and Dendrite of cell B
Myelin sheath or Schwann cells - Responsible for increased nerve velocity
Function of a glial cells - Insulate Axons, Phagocytosis of disease, Clear excess
neurotransmitter
Principle of Dynamic Polarization - Physiological signals within a nerve cell only flow in
one direction
Caudal - The cerebellum is ________ to the frontal lobe
Thalamus - The "Gatekeeper" of sensory information to correct nighter brain centers
Tract - Bundle of Nerve Fibers in the CNS
Positively - When at rest, the extracellular space is ______________ charged relative to
the intracellular space
The refractory period - Responsible for not allowing "back firing" of the action potential
in the opposite direction of the intended propagation
,Na+ - Greatest concentration outside of the cell
Motor Association Area / Pre-motor - A patient has an inability developing motor
programs, which brain region is most likely affected
Motor Unit - The motor neuron and all the fibers it innervates
A MN with a diameter of 80 microns - Which type of muscle fiber is activated last during
muscle contraction?
50 microns, 60 microns, or 80 microns?
Dorsal portion of the spinal cord - Sensory information arising from afferent nerves and
the receptors enters the spinal cord through
Motor End Plate - Specific synapse between alpha-MN and muscle tissue
Primary Motor Cortex - The area of the cerebrum that is activated (depolarized) before
motor signals descend the spinal cord
Somatosensory Association - Area of cerebral cortex responsible for integration and
interpretation of information from peripheral receptors
, Rate coding and Motor unit recruitment - Increases muscle contraction intensity
Muscles of the hand - Which would have the largest area (most motor neurons) of the
primary motor cortex?
-Thigh
-Hand
-Trunk
-Calf
Cerebellum - associated with integration of sensory and motor information to produce
smooth movement by evaluating error between planned movement and actual movement
Medulla Oblongata - Where the majority of neural tracts are transferred to the opposite
side of the CNS
Sensory Neurons - Dorsal roots of spinal nerves contain
Neuron A - Neuron A and B are both Type 1a. Neuron A has an axonal diameter of 25
microns and neuron B has a diameter of 12 microns. Which has the highest conduction velocity?
Speed - Which is a benefit to a monosynaptic reflex?
Synapse - The term the describes the point of communication between an axon of cell A
and Dendrite of cell B
Myelin sheath or Schwann cells - Responsible for increased nerve velocity
Function of a glial cells - Insulate Axons, Phagocytosis of disease, Clear excess
neurotransmitter
Principle of Dynamic Polarization - Physiological signals within a nerve cell only flow in
one direction
Caudal - The cerebellum is ________ to the frontal lobe
Thalamus - The "Gatekeeper" of sensory information to correct nighter brain centers
Tract - Bundle of Nerve Fibers in the CNS
Positively - When at rest, the extracellular space is ______________ charged relative to
the intracellular space
The refractory period - Responsible for not allowing "back firing" of the action potential
in the opposite direction of the intended propagation
,Na+ - Greatest concentration outside of the cell
Motor Association Area / Pre-motor - A patient has an inability developing motor
programs, which brain region is most likely affected
Motor Unit - The motor neuron and all the fibers it innervates
A MN with a diameter of 80 microns - Which type of muscle fiber is activated last during
muscle contraction?
50 microns, 60 microns, or 80 microns?
Dorsal portion of the spinal cord - Sensory information arising from afferent nerves and
the receptors enters the spinal cord through
Motor End Plate - Specific synapse between alpha-MN and muscle tissue
Primary Motor Cortex - The area of the cerebrum that is activated (depolarized) before
motor signals descend the spinal cord
Somatosensory Association - Area of cerebral cortex responsible for integration and
interpretation of information from peripheral receptors
, Rate coding and Motor unit recruitment - Increases muscle contraction intensity
Muscles of the hand - Which would have the largest area (most motor neurons) of the
primary motor cortex?
-Thigh
-Hand
-Trunk
-Calf
Cerebellum - associated with integration of sensory and motor information to produce
smooth movement by evaluating error between planned movement and actual movement
Medulla Oblongata - Where the majority of neural tracts are transferred to the opposite
side of the CNS
Sensory Neurons - Dorsal roots of spinal nerves contain
Neuron A - Neuron A and B are both Type 1a. Neuron A has an axonal diameter of 25
microns and neuron B has a diameter of 12 microns. Which has the highest conduction velocity?
Speed - Which is a benefit to a monosynaptic reflex?
