Download - Jr skeleton11 12
JR A&P SKELETAL SYSTEM
Janet. J. Nelson RN,CMA
FUNCTIONS
• Protect• Support• Muscle Attachment• Mineral Reserve• Hemopoiesis• Movement
Bone Composition
• Bone is a connective tissue with living cells.
With fibers and matrix
OsteoblastOsteocyteOsteoclast
Macroscopic structure of long bone
Cross section of long bone
Compact vs. Cancellous Bone
Microscopic Structure of Compact Bone
Microscopic Structure of Cancellous Bone
BONE CLASSIFICATIONS
• LONG• SHORT• FLAT• IRREGULAR
BONE MARKINGS-Depressions• FOSSA: a shallow basinlike depression • SINUS: a cavity within a bone• FORAMEN: a hole• MEATUS: a tube like passagePROJECTIONS OR PROCESSES• CONDYLE: a rounded knuckle-like prominence • HEAD: a bony expansion on a narrow neck
BONE MARKINGS for muscle attachment
• TROCHANTER: a very large irregular shaped process
• CREST: a ridge of bone• SPINE: a sharp slender projection • LINE: a narrow ridge• TUBEROSITY: a large rounded process• TUBERCLE: a small rounded process
PERIOSTEUM
BLOOD SUPPLY
Periosteum of bone
BONE FORMATION
• 3 months gestation skeleton is cartilage and fibrous membrane
Fontanels are unossified areas of the skull
Epiphysial Plate
• Epiphysial plate is an unossified area in the ephipysis of long bone
APPENDICULAR SKELETON
• Axial & Appendicular Skeleton
SHOULDER GIRDLE
CLAVICLE
SCAPULA
UPPER EXTREMITY
HUMERUS
BRACHIAL REGION
Olecranon Fossa
RADIUS & ULNA
• REMEMBER THE RADIUS IS ON THE THUMB SIDE AND ULNA ON THE PINKY SIDE
HAND
INNOMINATE BONE
NOTICE: ACETABULUM
Female vs. Male Pelvis
PATELLA
FOOT
ANY QUESTIONS ABOUT :”DEM BONES”?
http://www.kididdles.com/assets/songs/music/d009.mid
AXIAL SKELETON
• SKULL
FRONTAL BONE (anterior view)
FRONTAL BONE (inferior view)
SINUSES
PARANASAL SINUSES
PARIETAL BONE
TEMPORAL BONE
OCCIPITAL BONE
SPHENOID BONE
ETHMOID BONE
CRISTA GALLI & CRIBRIFORM PLATE
FACIAL BONES
MAXILLA
Mandible
SMALL FACIAL BONES
INFANT SKULL
AXIAL SKELETON CONT.
HYOID BONE
VERTEBRA
4TH LUMBAR VERTEBRA
ATLAS & AXIS
THORACIC CAGE
THREE TYPES OF CARTILAGE
• HYALINE:
• FIBROCARTILAGE:
• ELASTIC:
JOINTS
• SYNARTHROTIC JOINTS
• AMPHIARTHROTIC JOINTS
• DIARTHROTIC JOINTS
MOVEMENTS of Diarthrotic Joints
BURSA