The _____________ is involved in the first step of vitamin D synthesis, which is important for increased bone strength.

If a long bone is broken on the diaphysis, during bone repair spongy bone is part of the bony callus, but then bone remodeling occurs to remove the spongy bone in what would be the medullary cavity.

_________[A] ________________ is important in absorbing calcium in bones by stimulating osteblasts to make more matrix.

_______[A]___________ is a hormone that would lower blood calcium levels by incorporating calcium into bone.

Which type of ossification would occur at the epiphyseal plate of long bones, such as the femur, and result in bone formation during childhood and end at 18-21 years of age?

________[A]_________ is a hormone that would raise blood calcium levels by removing calcium from bones.

Which type of ossification would occur during fetal development and would produce the clavicle?

The ________system produces calcitonin, a hormone important in calcium homoestasis and development of strong bones.

Muscles attach to bones via _________________ to allow muscles to move bones.

The ____________ system gets erythrocytes from the bone marrow of the skeletal system.