Progesterone stimulates uterine contractions
Indicate whether the statement is true or false
FALSE
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Which of the following is/are two-joint muscle(s)?
A. rectus femoris B. sartorius C. pectineus D. both A and B E. all of the above
Increased cytosolic ________ concentrations are necessary for muscular contractions to occur properly.
Fill in the blank(s) with the appropriate word(s).
________ disease is a condition caused by hyposecretion of glucocorticoids or mineralocorticoids. Symptoms include low resistance to stress, electrolyte imbalances, and an unusual darkening of the skin.
Fill in the blank(s) with the appropriate word(s).
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.