Calcitonin
a. secretion is stimulated by low blood calcium levels
b. secretion is stimulated by a hormone from the anterior pituitary gland
c. is secreted by the C-cells of the thyroid gland
d. is stored in the colloid of the thyroid follicles
e. has characteristics a and c
C
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The vocal folds are located within the
A) nasopharynx. B) oropharynx. C) larynx. D) trachea. E) bronchi.
Most of the calcium that triggers contraction of cardiac muscle comes
A. into the cell through leakage channels in the sarcolemma. B. into the cell through voltage-gated channels in the sarcolemma. C. from the sarcoplasmic reticulum of the cell. D. from the Golgi apparatus of the cell.
When knee flexion is increased, what happens to the moment of inertia of the leg about the hip?
A. increased B. decreased C. remains the same D. need more information
Why are cattle a danger, even when they are restrained in a chute?
What will be an ideal response?