BIOL 207 Study Guide - Midterm Guide: Haversian Canal, Epiphyseal Plate, Bone
Document Summary
Functions of the skeletal system: support, protection (ex. Cranial brain, vertebrae spinal cord, ribs/sternum heart, hips lower organs: locomotion (movement, mineral storage (calcium, phosphate, blood cell production (hematopoiesis) Design of bones: compact (hard, spongy bone (looks like a sponge) [trabecular bone] Classification of bones: long bone- same physiology of growth, ex. Femur, humerus, fibula, tibia, phalanges, metacarpals, metatarsals, radius: short bone- roughly cube-like , have think outer layer of a hard (compact) bone, ex. Sternum, scapula, cranium bones, ribs: irregular bones, any bone not in top 3 categories, ex. Gross anatomy of bones because contain different types of tissue, bones are organs. Epiphyseal line: called epiphyseal growth plate when hyaline cartilage, becomes ossified and growth stops; point of reference. Hollow cavity (medullary cavity): filled w/yellow bone marrow surrounded by diaphysis. Epiphysis: thin layer articular (hyaline) cartilage covers joint surface of each one. Between diaphysis and epiphysis is metaphysis: flared portion.
