Calcium's roles in the body include
A. bone health.
B. muscle contraction.
C. action potentials in heart muscle.
D. blood clotting.
E. All of the choices are correct.
Answer: E
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Fluid-filled sacs that cushion synovial joints are called
A. fat pads. B. articular discs. C. bursae. D. menisci. E. diarthroses.
The primary curves of the vertebral column are the
A) cervical and lumbar curvatures. B) lumbar and sacral curvatures. C) cervical and thoracic curvatures. D) thoracic and sacral curvatures.
Splanchnic circulation involves the blood supply that feeds and drains:
A) abdominal digestive organs. B) thoracic digestive organs. C) thoracic cardiovascular organs. D) abdominal reproductive organs.
Muscle tissue is characterized by its
A. avascularity. B. durability. C. contractility. D. rigidity. E. strength.