ANATOMY 2300.03 Lecture Notes - Lecture 27: Venous Plexus, Dorsal Root Of Spinal Nerve, Potential Space

• School: Ohio State University
• Department: Anatomy
• Course: ANATOMY 2300.03
• Professor: Jennifer Burgoon

Document Summary

Extends from foramen magnum of skull (where it is connected to the medulla oblongata) to l1 or l2 in the vertebral canal, which is formed by successive vertebral foramina. The tapering end of the spinal cord is called the conus medullaris. The film terminal is a fibrous extension of the pia mater that extends from the conus medullaris to the posterior surface of the coccyx. The collection of spinal nerve roots that tends inferior to the spinal cord to reach their respective exit point from the vertebral canal (e. g. intervertebral foramina) is called the caudal equina. The caudal equina runs through the lumbar cistern (subarachnoid space inferior to conus meddularis) Cervical enlargement: c4 to t1; for innervation o fupper limbs. Lumbar enlargement: t11 to l1; for innervation of lower limbs.