ANAT 215 Lecture 7: lecture_7_central_nervous_system_spinal_cord copy
25 Oct 2017
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Anatomy 215 (reading material; chapter 14: pages 368-374) Each one is identified with letter and number. External topography: beginning: ending: lies in the vertebral canal foramen magnum length and diameter level of second lumbar vertebrae conus medullaris. Areas where interneurons are responsible for relaying arriving sensory information and coordinating the activities of the somatic motor neurons that control the complex muscles of the limbs. cervical supplies nerves to the pectorial girdle and upper limbs lumbar. Innervation to structures of the pelvis and lower limbs. cauda equine. Flum terminale and long ventral and dorsal roots that extend caudal to the conus medullaris reminds of us a gorse"s tail. meninges: specialized membranes provide protection, physical stability and shock absorption. This covers the spinal cord and surround the spinal nerve roots. Blood vessels in it deliver oxygen and nutrients. Spinal meninges are continuous with the cranial meninges surrounding the brain. pia mater, arachnoid mater, dura mater.
