ANT 3520 Study Guide - Midterm Guide: Apoptosis, Bone Remodeling, Collagen

• School: University of Florida
• Department: Anthropology
• Course: ANT 3520
• Professor: Amanda Friend

Document Summary

Bones are classified as an organ system because they are formed of living tissue. Storage of calcium, phosphorous and other ions required for neural firing. Hematopoiesis- generation of blood cells from marrow. 206 bones on average: axial or appendicular groups, axial bones- 80 bones divided into skull, vertebral column and thoracic cage, appendicular bones- bones that help move around. Shape: long bones- tibia, fibula, metacarpals, short bones, flat bones- sternum and scaupli, irregular bones- vertebra and pelivis. Internal layer of spongy bone; formed from trabeculae. Red and yellow marrow: red marrow makes blood cells, yellow marrow stores fat. Classic long bones have marrow concentrated at epiphyses (explains why predators gnaw at the ends of long bones) Filled with lamellae; filled with collagen; runs in alternating pattern in a torsion pattern. Lacunae- gaps that house osteocytes; monitor and maintain skeleton. Embryonic bone tissue start as cartilage; osteoblasts deposit calcium phosphate bone matrix.