The region of the sarcomere containing the thick filaments is the
A) Z line.
B) M line.
C) A band.
D) I band.
C) A band.
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The tissue connected and supported by glia cells is:
a. epithelial tissue b. connective tissue c. muscle tissue d. nervous tissue
A fracture in the shaft of a bone would be a break in the ________
A) metaphysis B) articular cartilage C) diaphysis D) epiphysis
Structure H is the
A) nasal.
B) lacrimal.
C) maxilla.
D) ethmoid.
E) palatine.
Parathyroid hormone functions to increase calcium ion levels in blood. If its secretion is regulated through negative feedback, under which conditions would this hormone normally be released?
A. Parathyroid hormone secretion increases in the morning and decreases in the afternoon. B. Parathyroid hormone secretion occurs when blood calcium levels are too high. C. Parathyroid secretion is constant to maintain blood calcium levels. D. Parathyroid hormone secretion occurs when blood calcium levels are too low.