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Chapter 7

Skeletal System

QuestionAnswer
Support Rigid framework, supports soft organs of the body
Protection protects soft body parts
Storage Calcium Is stored and also released when calcium levels drop in blood .
Hematopoiesis Blood cell formation; takes place in red bone marrow.
Osteonic contain blood vessels for compact bone also passage way through bone matrix
Osteone microscopic unit of compact bone
Trabeculae plates of bone in spongy bone
Canaliculi blood supply for spongy bone
Long bone bone that's longer than they are wide. Leg, Thigh, Arm
Flat bone bones primarily found in the cranium
Irregular bone vertebrae and some of the skull contain these kind of bones
Diaphysis shaft of long bone
Medullary cavity Compact bone surrounds a hollow space, in adults it contains yellow bone marrow
Articular Cartilage mostly hayline cartilage makes a smooth surface for movement
Epiphyseal plate where the bone grows at length
Periosteum fibrous connective tissue; outer surface of long bone
Osteogenesis bone formation
Ossification bone formation
Osteocytes mature bone cells
Appendicular skeleton appendages and their attachments
Axial skeleton Head and the trunk
Cranial bones Parietal , Frontal, Occipital, Temporal, Ethmoid
Maxillary bone forms upper jaw
Auditory Ossicles Malleus , Incus , Stapes
Hyoid bone U-shaped bone in the neck base for the tongue
Vertebral Column Contains 26 bones
Vertebral arch curved portion, surrounding central large opening called vertebral foramen
Lumbar vertebra L1-L5
Coccyx tail bone
Thoracic cage protects heart, lungs, shoulders and great vessels
Sternum breast bone
Jugular Suprasternal Notch upper portion of sternum
True ribs upper 7 ribs
Pectoral girdle Makes up the shoulders clavical and scapula
Pelvic girdle Hip girdle ; provides
Synarthroses Immovable joints
Amphiarthroses Slightly Movable joints
Diarthroses Freely movable joints
Synovial Fluid Lubrication for joints
Bursae Fluid filled sacs for cushion
Hinge joints Knee; Elbow
Ball and Socket Hip;Shoulder
Created by: ShawnaGreen