EPHE 141 Lecture Notes - Lecture 38: Rectus Femoris Muscle, Weight-Bearing, Sarcolemma

• School: University of Victoria
• Department: Exercise Science, Physical and Health Education
• Course: EPHE 141
• Professor: Hundza Sandra

Document Summary

What is the functional unit of bone? osteon. What is the matrix of bone called? osteoid. Where does the ground substance and matrix come from? osteoblasts. Forms thick walls of shaft (diaphysis) in long bones. Contains no blood vessels trapped within the matrix. Collagen fibers of periosteum are continuous with those of the bone, adjacent joint capsules and attached tendons and ligaments. Does not surround sesamoid bones nor is it found in tendons, ligaments, joint capsules, or where bone surfaces are covered by articular cartilages. Common place for osteoporosis to occur is in the vertebrae. If there is not enough healthy stress on bone, there will be no mineralization on the bone, so weight-bearing is important for bone. When some hyaline cartilage is replaced by bone. Not all bones are formed from this, but all our long bones are. Bone formation that occurs in regions that are not high in hyaline cartilage, but made up of other tissues.