Calcitonin normally has little effect on blood calcium levels in an adult, but when given at high levels, it can help lower them (and it may also function this way in children).

The joint shown in the diagram occurs between the first metacarpal and a carpal and is responsible for this kind of movement:

Parathyroid Hormone stimulates osteoblasts, which causes them to deposit more bone matrix.

The spaces at the black arrows (which contains blood vessels and nerves) represent __________ in  _________.

During bone healing, osteoblasts migrate to the area of repair and replace the soft tissue callus with:

Which condition is caused by the immune system attacking joint tissues and causing inflammation?

During bone growth, these cells would be found in large numbers close to the medullary cavity, so that the space inside the cavity can be increased as the bone widens:

Which of these would you expect to find inside the space at the arrow in a living bone?

The joint shown is covered with a tough tissue layer known as the:

Which of the following is a feature of militia groups?