Calcium, released by the sarcoplasmic reticulum, binds to ________ to move the ________, which allows actin to form of a ________ with myosin.
What will be an ideal response?
troponin C, tropomyosin, high-force crossbridge
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The function of the tympanic membrane is to amplify sound waves on their way to the inner ear
Indicate whether the statement is true or false.
Endocrine gland stimuli include hormonal, ________, and ________ stimuli.
Fill in the blank(s) with the appropriate word(s).
Which of the following is greater?
A) the concentration of solute in the filtrate at the beginning of the nephron loop B) the concentration of solute in the filtrate at the bottom of the nephron loop C) The concentrations at the top and bottom are identical.
Which of the following symptoms would a patient with a deficiency of parathyroid hormone be most likely to experience?
A. low plasma calcium levels and decreased muscular excitability B. low plasma calcium levels and increased muscular excitability C. high plasma calcium levels and decreased muscular excitability D. high plasma calcium levels and increased muscular excitability E. high plasma calcium levels and abnormally weak bones