Commenton’yesterday´s’lecture:’bme.lth.se/fileadmin/.../Biomekanik/lecture5_2016.pdf · 6. 7...
Transcript of Commenton’yesterday´s’lecture:’bme.lth.se/fileadmin/.../Biomekanik/lecture5_2016.pdf · 6. 7...
Comment on yesterday´s lecture:
Reac3on force in the hip
MEN WOMAN
Joint system, the spine
! !
The human spine
!
24 vertebrae
Atlas vertebra, C1
Even dogs…
What about the giraffe?
-‐ Trapezius -‐ La3ssimus dorsi -‐ Levator scapulae
!
Suppor3ng elements, muscles
Suppor3ng elements, muscles, deeper
Erector spinae (muscle group)
Suppor3ng elements, ligaments
Mo#on segment 1. Posterior longitudinal ligament 2. Anterior longitudinal ligament 3. Vertebral body 4. Car3lage layer 5. Intervertebral disc 6. Intervertebral foramen,
nerveroot 7. Ligamentum flavum 8. Spinous process 9. Intervertebral joint 10. Supraspinous ligament 11. Interspinous ligament 12. Transverse process 13. Vertebral canal
Mo#on segment
Range of mo3on
Pelvic 3lt
Anterior 3lt Posterior 3lt
!
The intervertebral disc
• nucleus pulposus • anulus fibrosus disci interver3bralis • car3laginous endplate
The curvature of the spine
Scoliosis
Standing posture
Rela3ve loads on the third lumbar spine
Influence of backrest
Abdominal pressure
Ar3ficial discs
Designing ar3ficial discs
Bone Support, Cerament
Healty trabecular bone Osteoporo3c bone
Ar3fical trabecular bone filled with Cerament
Illustra#ve exercises for the lectures
Deforma3on of a disc