BIOL 1015 Lecture Notes - Lecture 7: Osteoclast, Calcium Metabolism, Skeletal Muscle
4 Apr 2016
School
Department
Course
Professor
Document Summary
*iclicker* which of the following animals has a hydrostatic skeleton. Has fluid filled segments that the muscle suse to create a pressure against. Exoskeleton: muscles attach to the inside of the exoskeleton. Endoskeleton: muscles attach to the ouside of bones or cartilage. *iclicker* the crystaline calcified material of the haversian system of anatomic bone is. Non-living matrix surrounding bone cells needed for calcium metabolism. Hydroxilapetite: hard bone made by connective tissues iis an organic calcium carbonate. Metabolize calcium into the plasma are called osteoclasts (strip the bone of calium and put it in blood) Bones of fishes and bones are avascular, acellular, and basicaly innert except for their surfaces where repairs can occur w/o sufficient vidamin d, proper bone calcification cannot be achieved and bones can become soft and flexible. Insuficient calcium can lead to brittle bones aka osteoporisis. Completely used and movavle, smei movable, freely muvable, No tendons-muscles attach directly to special attachment points.
