Anatomy ch 7 part 2 Flashcards
Osteocyte
Maintain bone
Osteoclast
Breakdown bone
Osteoblast
Build up bone
What is periosteum?
Covering outer surface of bone
What does dense irregular CT do?
Resist in all directions
What does periosteum do?
Attachment site for ligaments and tendons
What is perforating fibers?
Anchor onto bone
What is endosteum?
Covers all internal surface of bone within medullary cavity
What is diploe?
Spongy bone in-between flat bone of skull
What is nutrient foramen?
Hole in bone artery and vein go through
Bone is highly what?
Vascularized (blood vessels)
Nerves that supply bone what?
Innervate bone
What tissue is bone marrow?
Soft CT of bone
What is hemopoietic in red bone marrow?
Blood cell forming and reticular CT
Red bone marrow in children located
Spongy bone and medullary of long bone
Red bone marrow in adults located
Selected areas of axial skeleton
Function of EPO hormone
Produces red blood cells
4 types of cells found in bone CT
Osteoprogenitor cells, osteoblasts, osteocytes, osteoclasts
Osteoprogenitor cells
Stem cells
Order of cells of bone
Osteoprogenitor cells, osteoblasts, osteocytes
Function of osteoblasts
Becomes entrapped within matrix
Function of osteocytes
Detects stress on bone and triggers formation
Function of osteoclasts
Increases surface area