front 1 spinal cord extends from the _______________ to
| back 1 foramen magnum, L1 or L2 |
front 2 length and width of spinal cord | back 2 17 inches and 3/4 inches wide |
front 3 spinal cord is surrounded by 3 layers of | back 3 meninges |
front 4 spinal cord terminates in a tapering cone shaped structure called | back 4 conus medullaris |
front 5 fibrous extension of the conus medullaris, that extends to the coccyx to keep it stable | back 5 filum terminal |
front 6 saw-tooth shelves of piamater that attach to the dura mater to keep the cord stable | back 6 denticulate ligaments |
front 7 the two regions of the spinal cord that are enlarged | back 7 cervical and lumbar |
front 8 why are the cervical and lumbar regions enlarged | back 8 it's the place where the upper and lower limbs arise. |
front 9 the collection of nerve roots at the inferior end of the vertebral canal is | back 9 cauda equina |
front 10 neurons that reside in the ganglion and conducts impulses from the skin to the spinal cord where they synapse with another order neurons | back 10 first order ascending neurons |
front 11 neurons that reside in the dorsal horn of the spinal cord or in medullary nuclei that transmit impulses to the thalamus or the cerebellum where they synapse | back 11 second order ascending neurons |
front 12 neurons that have cell bodies in the thalamus and transmit impulses to the post central gyri of the cerebrum hemesphere | back 12 third order ascending neurons |