Which of the following is an inherited X-linked disorder where ...

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Which of the following is an inherited X-linked disorder where the muscles closest to the center of the body (the hip and shoulder area) are affected first, with the muscles in the fingers being affected later?
  A. developmental coordination disorder
  B. Duchenne muscular dystrophy
  C. cerebral palsy
  D. spina bifida

Question 2

Celine has been diagnosed with cerebral palsy. Her upper and lower extremities on one side of her body are involved, and she has spasticity in these limbs. She would be classified as having
  A. diplegia.
  B. hemiplegia.
  C. paraplegia.
  D. triplegia.

[6ana001]

Answer to Question 1

ANS: B
Duchenne muscular dystrophy is an inherited sex-linked disorder caused by a genetic mutation, which results in the absence of a critical protein, dystrophin, which stabilizes the muscle membrane during contraction. When this protein is deficient, muscles degenerate.

Answer to Question 2

ANS: B
In spastic hemiplegia there is involvement of the upper and lower extremities on the same side of the body with the arm more affect than the leg.

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