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aka growth plate where cartilage is generated during bone growth in childhood
End of the bone
Spongy bone in Epiphysis
Between the Epiphysis and Diaphysis
Dormant until they become Osteocytes (Bone forming cells)
Dissolve bone structures not needed, or when salts are required for electrolyte balance
- aka Haversian system, is the fundamental functional unit of compact bone.
- Osteons, roughly cylindrical structures that are typically several millimeters long and around 0.2mm in diameter.
- Each osteon consists of concentric layers, or lamellae, of compact bone tissue that surround a central canal, the Haversian canal which contains the bone's nerve and blood supplies.
Yellow versus Red bone marrow
- Yellow: stores fat in semi-liquid state, found in Medullary canal
- Red: produces RBCs, found in Cancellous bone
Bone embedded within a tendon (e.g. kneecap/patella)
Main stem of bone
Small perforations of the long bones which blood vessels and nerves travel
- aka Volkmann's canals
- Carry blood in and out of the bone shaft
middle of the diaphysis section of the bone, full of yellow bone marrow
- [perry -oss-tea-um]
- Covers exterior of diaphysis, and contains nerve endings that signal damage/breaks
Where cartilage is
Movement through an arc of a circle with no rotation.
3 types of joint?
- Synarthroses: Immovable joints
- Amphiarthroses: Very limited joints (e.g. pelvis)
- Diarthroses: Synovial Joints (Free moving)
- Immovable joints
- e.g. Skull sutures / jaw & teeth
- Very limited joints
- e.g. pelvis
- aka Synovial Joints
- Free moving
Monaxial joint on a single plane
- e.g. C1 (atlas) and C2 (axis of the spine) allowing head to rotate
- Monaxial joint
- Condyloid joints
- aka Gliding joint
- aka Ellipsoidal joints
- Sliding motion in two planes
- e.g. between wrist and metacarpals
- Biaxial joints, move in 2 planes at right angles to each other
- e.g. joints at base of thumb
Ball and socket
Muscle Origin versus Insertion
- Origin attaches to non-moving bone.
- Insertion moves towards origin during contraction.
Small bundle of muscle fibres
They work against each other
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