INTERVERTEBRAL DISC (BIOMECHANIS OF SPINE)Physiotherapy Tutorial
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summary of the video with the time for reference:
1.Nucleus pulposus 1:02
-high in water and proteoglycans
-water changes with age and time
-type 2 collagen
-resists compressive forces
-force absorption mechanism
2.Anulus fibrosis 4:45
-low in water and proteoglycans
-has elastin
-high in type 1 collagen which helps in absorbing tensile forces
-covered by elastin superiorly and inferiorly
3.End plate 6:34
-layer of cartilage which is 0.6 to1 mm thick
-Hyaline cartilage and Fibrocartilage is present
-Hyaline gets converted into Fibrocrtilage
-Fibrocartilage helps in shock absorption
4.Innervation 8:19
-vertebral and sinuvertebral nerves supply the disc and ligaments
5.Nutrition 8:39
-Metaphyseal arteries and blood vessels at subchondral bone
-nutrition by diffusion
#biomechanicsofspine
#spinebiomechanics
#vertebralcolumnbiomechanics
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