ANP 1106 Lecture Notes - Lecture 5: Linea Aspera, Biceps, Glenoid Cavity

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1106
• Professor: Jackie Carnegie

Document Summary

33 bones: 7 cervical, 12 thoracic, 5lumbar, 5 sacral, 4 coccyx. 3 main functions: weight bearing, anchor for muscles/ligaments, protection of spinal cord. Anterior is strong and attached to bony vertebrae/discs prevent hyperextension limited backward motion of spine. Posterior is thin and only attached to discs preventing hyperflextion limited forward motion of spine. Cushions vertebral bodies-prevent from shock nucleus pulposus in centre gives elasticity/compressibility annulus fibrosus around periphery resists tension in spine. Discs thickest in lumbar/cervical region for flexibility requires lots of movement. Herniated disc is broken/ruptured disc, giving pressure on the spinal nerve. Vertebral foramen: - vertebral canal: spinal cord passage. Intervertebral foramina: spinal nerve passage between 2 vertebrae connects to spinal cord. Cervical vertebrae -7 parts- c 1st: atlas c2nd: axis. Transverse foramen: gives passage of vertebral artery to brain. Atlas-no body, spinous process facet for dens giving hook connection with axis. Vertebral foramen: circular spinous process: long pointing downward.