BIOL 2021 Lecture Notes - Lecture 9: Vasomotor, Tentorium Cerebelli, Blood Plasma

• School: University of Windsor
• Department: Biological Sciences
• Course: BIOL 2021
• Professor: Sara Mcnorton

Document Summary

Functions of the spinal cord: sensory and motor innervation through the spinal nerves, provides two-way conduction pathway for signals between the body and brain, major center for reflexes. Location of the spinal cord: runs through the vertebral column, extends from the foramen magnum to the level of the vertebra l1 or l2. Conus medullaris inferior end of the spinal cord where it tapers. Filum terminale long filament of connective tissue, attaches to coccyx inferiorly. Cervical and lumbar enlargements where nerves for upper and lower limbs arise. Cauda equina collection of spinal nerve roots at the inferior end of the vertebral canal. Organization of the spinal cord: gray matter divided according to somatic and visceral regions, white matter composed on myelinated and unmyelinated axons, allow communication between spinal cord and brain. Protection of the spinal cord: protected by vertebrae, meninges, and csf, meninges: Dura mater strongest, outermost layer surrounding the spinal cord, composed of dense fibrous ct.