Nicks Story
A. The symptoms that Nick has described so far that are relevant to the nervous system are the weird burning and prickling pains in his feet and the fact that he gets dizzy when he sits or stands up, he has trouble focusing sometimes, his knee reflexes are weak, and he can’t feel much in his feet. His symptoms are both sensory and motor.
B. They are mostly caused by peripheral nerve damage, but that the balance and coordination problems may suggest a deeper issue.
C. The component of the reflex arc that is most likely to be damaged in Nick’s situation is the integrating center because one or more regions within the CNS relay impulses from sensory to motor neurons, so the impulses are never reaching the motor neurons and effectors.
D. The parasympathetic division because it controls the interworking of the body.
E. The autonomic nervous system controls blood pressure by sensing a rise or fall in the blood pumping in the veins, thus causing them to constrict or dilate as needed.
F. The area of the brain that interacts with the autonomic nervous system during physical stress to initiate rapid heart and respiratory rates, elevate blood pressure, and cause profuse sweating is the prefrontal cortex.
G. The autonomic receptors that regulate closing of sphincters and relaxation of organ walls are Adrenergic (Alpha 1) receptors.
H. The term polyneuropathy would be appropriate for the symptoms that Nick is experiencing because his problems are being caused by damage to more than one nerve.
I. The symptoms noted by Nick’s PCP that indicated polyneuropathy included his inability to feel pressure or pain, his tingling in his feet, decreased reflexes, and his dizziness and unsteadiness on his feet.
J. Nick’s generalized symptoms are more indicative of a peripheral polyneuropathy than a CNS lesion to the brain or spinal cord because he has symptoms with sensory, motor, and autonomic nerve damage.
K. When Nick’s PCP tested his reflexes on his knees, and elbows that would be
B. They are mostly caused by peripheral nerve damage, but that the balance and coordination problems may suggest a deeper issue.
C. The component of the reflex arc that is most likely to be damaged in Nick’s situation is the integrating center because one or more regions within the CNS relay impulses from sensory to motor neurons, so the impulses are never reaching the motor neurons and effectors.
D. The parasympathetic division because it controls the interworking of the body.
E. The autonomic nervous system controls blood pressure by sensing a rise or fall in the blood pumping in the veins, thus causing them to constrict or dilate as needed.
F. The area of the brain that interacts with the autonomic nervous system during physical stress to initiate rapid heart and respiratory rates, elevate blood pressure, and cause profuse sweating is the prefrontal cortex.
G. The autonomic receptors that regulate closing of sphincters and relaxation of organ walls are Adrenergic (Alpha 1) receptors.
H. The term polyneuropathy would be appropriate for the symptoms that Nick is experiencing because his problems are being caused by damage to more than one nerve.
I. The symptoms noted by Nick’s PCP that indicated polyneuropathy included his inability to feel pressure or pain, his tingling in his feet, decreased reflexes, and his dizziness and unsteadiness on his feet.
J. Nick’s generalized symptoms are more indicative of a peripheral polyneuropathy than a CNS lesion to the brain or spinal cord because he has symptoms with sensory, motor, and autonomic nerve damage.
K. When Nick’s PCP tested his reflexes on his knees, and elbows that would be