Question

A 35 year old female presents with a history of several episodes, each separated by several months, in which she experiences brief periods of physical weakness, clumsiness of the legs and hands, visual disturbances, and mood swings. Her weakness is most prominent in the lower extremities. CT scans show evidence of multiple lesions in the white matter of the brain and spinal cord. During her last episode, there were increasing neurological deficits due to an increasing number of disseminated lesions. Prednisone (60mg/day for 5-7 days) was prescribed and helped her return to as normal and active a life as possible. What is her diagnosis most likely to be? Multiple Sclerosis O Scleroderma O Guillain Barre Syndrome O lupus D Question 16 2.5 pts What type of cell is attacked in the autoimmune disorder in question 15? o Oligodendrocytes Schwann cells Astrocytes Ependymal cells D Question 17 2.5 pts Neurotransmitters are small organic compounds synthesized by neurons. An example of a neurotransmitter is O Blogenic amines Amino acids Acetylcholine All are correct Neuropeptides

Answer 1

15) The correct option is C) Gillain Barre Syndrome .

Acute destruction of the myelin sheath of peripheral nerves due to an autoimmune disorder that results in varying degrees of muscle weakness and paralysis.

-After the accute phase, remyelination occures, re-establishing nerve functions

16) The correct option is B) Schwan cells

The cells that make the myelin shealth of axons . Axons are left intact .

17) The correct option is C) Acetylcholine is an example of neurotransmitter .

Acetylcholine is the chief neurotransmitter of the parasympathetic nervous system, the part of the autonomic nervous system (a branch of the peripheral nervous system) that contracts smooth muscles, dilates blood vessels, increases bodily secretions, and slows heart rate

18) The correct option is B )