DMD & Muscles

Which of the following are types of muscle? Select ALL that apply.

• cardiac

• rough

• smooth

• hepatic

In DMD, which muscles are affected? Select ALL that apply.

• cardiac

• rough

• hepatic

• skeletal

Which of the following proteins is dysfunctional in DMD patients?

• dystrophin

• creatine kinase

• actin

• myosin

Which of the following statements is TRUE regarding DMD patients?

• Their skeletal muscles tear and heal too slowly.

• Their skeletal muscles tear and don't heal.

• Their cardiac muscles tear and heal too slowly.

• Their cardiac muscles tear and don't heal.

Which exercises are more appropriate for DMD patients? Select ALL that apply.

• swimming

• biking

• weight lifting

• running

Label the skeletal muscle.

c

d

b

e

fascicle

sarcomere

muscle fiber

myofibril

tendon

Label the sarcomere.

a

b

c

Titin

Myosin

Actin

Reorder the following:

• Dystrophin is too short

• Functional and dysfunctional proteins are destroyed

• Calcium flood the muscle cell

• The muscle membrane rips

• Over activation of proteases

Which is the thin myofilament of a sarcomere?

• actin

• creatine kinase

• titin

• dystrophin

Which is the thick myofilament of a sarcomere?

• actin

• myosin

• titin

• dystrophin