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Purpose & Function of skeleton Protection Storage of Calcium Hematopoiesis
Bones are 'replaced' every 7 years
Examples of Protecting Bones Skull Brestbone
Blood cell formation in the bone marrow Hematopoiesis
Two types of Marrow Red (think WBC, RBC, Platelets) Yellow (think fat)
Tips of long bone are called Proximal Epiphysis Distal Epiphysis
Shaft of bone is called Diaphysis
Wraps around the bone Periosteum
Located in the ends of long bones Spongy Bone aka cancellous bone
Types of Long Bones Femur Humours Phallanges
Types of Short bones carpal of wrist tarsal of feet
Type of flat bone skull
Type of Irregular bone vertebrae
Thin layer of hyaline cartilage covering the epiphysis Articular Cartilage
Very tight. No spaces. The wall of the Diaphysis is made of this. Compact bone cortical bone
Conects bone to bone Ligaments
Conects muscle to bone Tendons
Builds Bones Osteoblasts
Takes Bones Apart Osteoclasts
Mature Bone Cell Osteocytes
Bone forms between 2 layers of connective tissue Intramembranous
Bone growth starts as cartliage that bone latter replaces Endochondral
two divisions of the skeleton Axial Skeleton Appendicular Skeleton
Cranial Bones 1.Frontal 2.Parietal 3.Occipital 4.Temporal 5.Spheniod 6.Ethmoid
Sutures of the skull 1.Sagittal 2.Coronal 3.Lambdoial 4.Squamosal
Suture: midline between the two parietal bones Sagittal
Suture: between the frontal bone and the parietal bones Coronal
Suture: between the occipital and parietal bones Lambdoidal
Suture: between the temmporal and parietal bones Squamosal
'Soft Spots' on an infants skull Fontanels
Number of vertebrae (for this class) 26
Number of cervial vertebrae 7
Created by: 1331508009