Topic 5-6 Part 2 Skeletal System

Which of the following increase blood Ca2+ levels? Select all that apply:

• Calcitonin
• Parathyroid hormone (PTH)
• Calcitriol

• Thyroid hormone

If you were Hypercalcemic (high Ca2+), which hormone would be released to lower Ca2+ back to a homeostatic range.

• calcitonin
• insulin
• aldosterone
• parathyroid hormone

What type of fracture?

• Open

• Greenstick

• Incomplete

• Oblique

• Compound

Name this fracture

• Comminuted

• Compound

• Greenstick

• Transverse

Blue arrow?

• Final step of intramembranous ossification

• Osteosarcoma

• Increased osteoclast activity

• Callus formation from bone repair

What is Intramembranous Ossification?

• Process of bone formation without cartilage model
• Process of bone formation through endochondral ossification
• Process of bone formation with a cartilage model
• Process of bone formation through appositional growth

What is Endochondral Ossification

• The process of bone formation where ligaments are replaced by bone tissue.

• The process of bone formation where bone tissue is replaced by cartilage.
• The process of bone formation where muscles are replaced by bone tissue.
• The process of bone formation where cartilage is replaced by bone tissue.

Appositional bone grown involves ___ whereas interstitial bone grown involves ___

• addition of new bone tissue within the existing bone; removal of existing bone tissue

• addition of new bone tissue on the surface; growth of bone tissue within the existing bone

• growth of bone tissue muscle; addition of new cartilage within the existing bone

• removal of existing bone tissue; addition of new bone tissue within the existing bone

Calcitonin is released from the ___ for the purpose of ___ Ca2+

• thyroid gland,

  increasing

• adrenal gland,

  increasing

• thyroid gland,

  reducing

• parathyroid gland,

  increasing