Blood calcium levels are maintained through negative feedback loops. Describe what the body does to reverse a decrease in blood calcium levels (i.e., to increase blood calcium levels). Be sure to include all relevant cells, structures, organs, hormones, etc.

Osteocyte:

Describe the action known as “adduction of the arm”.

Name the structure of microscopic compact bone labeled “A”

Name the structure of the skeletal muscle labeled “B”

Describe the difference between a flat bone and a long bone and give an example of each.

Name the structure of the skeletal muscle labeled “C”

Briefly describe each of the following: kyphosis, lordosis, and scoliosis.

Discuss the purpose of the fontanels and describe their location.

Describe circumduction. Give an example of a joint that exhibits this type of movement.