HSCI 100 Lecture Notes - Lecture 9: Hematoma, Intramembranous Ossification, Connective Tissue

• School: Simon Fraser University
• Department: Health Sciences
• Course: HSCI 100
• Professor: neinkevanhouten

Document Summary

Stores minerals (ca and k) and fat: mineral for muscle contraction: calcium, bones are calcified = stable structure, homeostasis: maintain blood calcium levels. Red bone marrow: makes blood cells found in spongy bone and flat bone. Osteocytes: mature bone cells that maintain bone structure derived from osteoblasts. Osteoclasts: bone-absorbing cells; release calcium and phosphorus (recycles bone) Osteoblasts form bone = takes ca out of the blood in order to build bone. Osteoclasts break down bone = release ca into the blood. Look at cartilage between diaphysis and the epiphysis (epiphyseal growth plate: expands region (move does into diaphysis and ossify, makes bone longer, rapid division creates more cells = more growth = more mass. Epiphysis > resting zone > proliferating zone > degenerating zone > ossification zone. Growth hormone (gh): stimulates bone growth and epiphyseal plates. Vitamin d: converted to a hormone to allow calcium absorption: produced in epidermis.