Z lines
a. are formed by the T tubules.
b. extend down the middle of the I band.
c. are formed by the cross bridges.
d. are the thin filaments.
e. extend down the middle of the sarcomere.
B
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Which muscle's most powerful action is to supinate the forearm?
A. Brachialis B. Biceps brachii C. Triceps brachii D. Brachioradialis
A blood clot that blocks the popliteal vein would interfere with blood flow in which other veins?
A) deep femoral and femoral circumflex veins B) lateral sacral and obturator veins C) gluteal and internal pudendal veins D) tibial and fibular veins and the small saphenous vein E) tibial and fibular veins and the great saphenous vein
Elevated concentrations of glucagon would result in ________.
A. increased gluconeogenesis B. decreased lipolysis C. increased lipogenesis D. decreased glycogen synthesis
Organophosphate "nerve gases" induce paralysis by blocking neural stimulation of the neuromuscular junctions, while botulinum toxin produces the same effect by inhibiting acetylcholinesterase
Indicate whether the statement is true or false.