Vocab 1
What is a Stem Cell?
An undifferentiated cell of a multicellular organism which is capable of giving rise to indefinitely more cells of the same type, and from which certain other kinds of cell arise by differentiation
What is an Osteoprogenitor Cell?
Mitotically active osteo stem cells located in periosteum and endosteum.
What is a bone Fracture?
A break or crack in a bone
What is a Joint?
The point where two or more bones meet in the body, which can allow for movement or provide stability.
What are Sutures?
A type of fibrous joint that connect bones, most commonly the bones of the skull
What is Red Bone Marrow?
Soft, spongy tissue found inside certain bones that is responsible for producing blood cells.
What is Yellow Bone Marrow?
A type of soft, fatty tissue found within the cavities of certain bones that is mainly responsible for fat (energy) storage.
What is an Osteoblast?
Bone-forming cells that secrete unmineralized bone matrix called osteoid.
What are Tendon Sheaths?
Tube-like sacs filled with fluid that wrap around tendons near joints to reduce friction as the tendons move.
400 Point Question:
What is a Sprain?
What is a Dislocation?
Sprain: A stretch or tear of a ligament
Dislocation: When the bones in a joint are forced out of their normal position.
What is Bone Deposition?
The process whereby new bone is formed.
What is Ossification?
The process of bone tissue formation.
What is an Osteocyte?
Mature bone cells that can no longer divide.
What is the Origin Point?
Attachment to immovable bone
What is the Insertion Point?
Attachment to movable bone
What is the Periosteum?
White double layered connective tissue membranes that cover outside of compact bone.
What is the Endosteum?
Delicate connective tissue membranes that cover inside portion of compact bone.
What is an Osteoclast?
Large multinucleate bone cells which absorb bone tissue during growth and healing.
What are Synchondroses?
Joints where a bar or plate of hyaline cartilage unites bones
What are Bursae?
Small, fluid-filled sacs that act like cushions between bones, tendons, and muscles to reduce friction and help movement happen smoothly.
What are Trabeculae?
Needle-like or flat pieces of bone that all together take the shape of a honeycomb.
What is Bone Remodeling?
A continuous process in which old bone is removed, and new bone is formed to maintain the structural integrity and strength of the skeleton
What is Bone Resorption?
The process by which osteoclasts break down bone tissue to release the stored minerals.
What are Syndesmoses?
Joints where bones are connected by ligaments
What are Symphyses?
Joints where fibrocartilage unites bones together