Muscles and Neuromusclar Junction

A. Propagation
B. All or none law
C. Depolarization
D. Hyper polarization

A. Cell
B. Plasma
C. Interstitium
D. Bone

A. Na effux
B. Na influx
C. K efflux
D. K influx

A. Cylindrical
B. Transverse striation
C. Centrally placed nuclei
D. Multiple nuclei

A. Failure of acetylcholine to diffuse
B. Failure of ATP supply
C. Failure of break down of calcium bridges
D. None of the above

A. Is not essential for contraction to occur
B. Has a prolonged plateau phase?
C. Spreads in ward to all parts of the muscle via the t- tubule system
D. Begins with an, in ward movement of K+ ins

A. To study muscle activity
B. Determine class II malocclusion
C. Determine the centric relation
D. Determine the centric occlusion

A. Contracts when calcium is taken up by sarcoplasmic reticulum
B. Contracts when actin and myosin filaments shorten
C. Contraction is initiated by calcium binding to troponin
D. Contraction is initiated by calcium binding to tropomyosin

A. Sarcolemma
B. Sarcoplasm
C. Myofibril
D. Endomysium

A. Contraction of skeletal muscle
B. Decrease of heart rate
C. Secretion of saliva
D. Contraction of pupils