True or False? The membranous labyrinth is located within the bony labyrinth of the inner ear.
Answer the following statement true (T) or false (F)
True
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The type of contraction in which length of the muscle fibers do not change is called:
A) isometric. B) isotonic eccentric. C) isotonic concentric. D) tetany.
The prominent ridges in the lining of the empty stomach are called
A) cardia. B) papillae. C) rugae. D) plicae. E) villi.
Bundles of muscle fibers (fascicles) are wrapped by a tissue known as
A) epimysium. B) perimysium. C) endomysium. D) superficial mysium.
Why is the zone of overlap an important region of the sarcomere?
A) The zone of overlap is important because it is where actin filaments are anchored to and overlap nebulin proteins. B) The zone of overlap is important because it is where myosin filaments are anchored to and overlap titin proteins. C) The zone of overlap is important because it is where the myosin heads can interact with the thin filaments. D) The zone of overlap is important because it is where one sarcomere ends and another sarcomere begins. E) The zone of overlap is important because it is where the troponin proteins bind acetylcholine to generate an action potential that can cause muscle contraction to occur.