BIO210Y5 Chapter Notes - Chapter 1: Bone, Medullary Cavity, Hydroxylapatite
Document Summary
Spongy bone: network of struts and plates (more porous that makes things lighter) Compact bone: wall that acts as structural support (no pores) Medullary cavity: vascular support; red (vascular tissues) or yellow (adipose tissues) bone marrow. Periosteum: superficial covering rich in blood and lymphatic vessels as well as sensory nerves (you need to nutrient support of blood vessels for new cells to develop) Nutrient foramen: opening in a bone or nutrient artery and vein. Hydroxyapatite crystals (calcium, phosphate, hydroxide: hard, inflexible, brittle. Hydroxyapatite (crystal) + collagen (protein) = strong and resistant. A force being applied to something (something that holds the weight) A lot of weight is settled on the medial side. Allows something to return to normal after force is applied (stretching) It restores the bone after a force is allied to it (redistributes the force) Osteocytes: bone cells arranged in circles (compact bone in which the center of the circle is hollow with blood vessels).
