Which Disorder in This Chapter Has No Known Cause and No

question 31

Multiple Choice

Which disorder in this chapter has no known cause and no current diagnostic tests to confirm the diagnosis?

• A)Myasthenia gravis
• B)Muscular dystrophy
• C)Tenosynovitis
• D)DMD
• E)Fibromyalgia

---

Definitions:

Aromatic Compounds

Organic molecules that contain one or more benzene rings in their structure, characterized by their stable ring system and delocalized pi electrons.

H2O

The chemical formula for water, a compound consisting of two hydrogen atoms bonded to one oxygen atom.

Bromine Substituent

Refers to a bromine atom attached to the carbon skeleton of an organic molecule, affecting its reactivity and properties.

Deactivator

A chemical compound or group that decreases the reactivity of an atom or a formation within a molecule, often used in reference to aromatic substitution reactions.