The chief cells of the parathyroid gland monitor
A) calcitonin levels.
B) blood glucose levels.
C) blood phosphate levels.
D) blood calcium levels.
E) None of the answers are correct.
D) blood calcium levels.
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Which of the following are considered to be bone-building cells?
a) fibroblasts b) osteoclasts c) osteocytes d) osteoblasts
Answer the following statements true (T) or false (F)
1. The organelle where aerobic or cellular respiration occurs is the mitochondria. 2. Lysosomes not only digest microbes but also are involved in the process of “cell suicide” called apoptosis. 3. Lysosomes are baglike structures that contain digestive enzymes. 4. Only about half the population have cells with flagella. 5. Chromatin contains both protein and DNA.
The posterior pituitary
a. secretes ADH b. stores anterior pituitary hormones c. stores ACTH and LH d. secretes vasopressin and oxytocin into the hypothalamo-hypophyseal portal system e. does none of the above
The adrenal medulla secretes mostly ________.
A. endorphins B. norepinephrine (noradrenaline) C. dopamine D. acetylcholine (ACh) E. epinephrine (adrenaline)