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Bone growth and development

by: Janaki Padmakumar

Bone growth and development ANT3520

Marketplace > University of Florida > ANT3520 > Bone growth and development
Janaki Padmakumar

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About this Document

Brief overview of the crash course video shown in class- goes over some basic concepts and terms about bone growth
Skeleton Keys: Introduction to Forensic Anthropology
Amanda Friend
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This 2 page Study Guide was uploaded by Janaki Padmakumar on Friday July 8, 2016. The Study Guide belongs to ANT3520 at University of Florida taught by Amanda Friend in Summer 2016. Since its upload, it has received 28 views.


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Date Created: 07/08/16
Bone growth and development: - 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 - Osteocalcin- regulates bone formation - 206 bones on average o Axial or appendicular groups o Axial bones- 80 bones divided into skull, vertebral column and thoracic cage o Appendicular bones- bones that help move around - Shape o Long bones- tibia, fibula, metacarpals o Short bones- o Flat bones- sternum and scaupli o Irregular bones- vertebra and pelivis - External layer of compact cortical bone - Internal layer of spongy bone; formed from trabeculae - Red and yellow marrow o Red marrow makes blood cells o Yellow marrow stores fat - Classic long bones have marrow concentrated at epiphyses (explains why predators gnaw at the ends of long bones) - Osteons- tubules inside bone - Filled with lamellae; filled with collagen; runs in alternating pattern in a torsion pattern - Central canals- nerves and blood vessels - Lacunae- gaps that house osteocytes; monitor and maintain skeleton - Osteoblasts- bone building cells - Embryonic bone tissue start as cartilage; osteoblasts deposit calcium phosphate bone matrix - Osteoclasts- bone degrader cells; bone remodeling - Osteocytes signal osteoclasts for damage areas (like microscopic fractures); collagen digesting enzyme and mild acid to conduct resorption - Undergo apoptosis (auto destruction) -


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