Explain how bones are remodeled in response to low blood calcium ion levels
What will be an ideal response?
When blood calcium ion levels fall too low, parathyroid hormone (PTH) activates bone-destroying cells called osteoclasts to break down the bone's matrix and release the stored calcium into the blood. PTH determines when bone will be broken down in response to the level of calcium ions in the blood.
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How is glucose reabsorbed in the tubules?
a. via protein carriers b. via fatty acid carriers c. actively d. passively e. by ionic filtration
When a muscle spanning a joint contracts, it pulls the ________ toward the ________.
A. smaller bone; larger bone B. insertion; origin C. larger bone; smaller bone D. origin; insertion
All of the following bones are part of the axial skeleton except which one?
A. Bones of the neck B. Bones of the head C. Bones of the trunk D. Bones of the leg
Genotyping differs from serology in that
A) serology is faster. B) genotyping requires a fresh blood sample whereas serology can be done on a dried sample. C) serology detects diverse antigens, whereas genotyping detects the underlying genetic instructions for those antigens. D) genotyping detects diverse antigens, whereas serology detects the underlying genetic instructions for those antigens.