First off, I'm confused as to why this is in the "Human Anatomy" catagory?
Anyway, the spinal cord of a squirrel monkey is similar to that of any other primate including humans. I recommend Britannica for a grossly in depth explanation of the exact structure of a squirrel monkey's spinal cord.
The notochord develops into the vertebrate spinal cord.
Yes it is a mammal.
Spinal cord......
brain and spinal cord
Obturator Nerve, Obturator Artery, and Obturator Vein.
No. It is a structure of nervous tissue and cells.
vertebral column
There is no joint between brain and spinal cord. The spinal cord is a mass of neurones that is situated in the backbone which feeds in to the brain via neurones.
medulla oblanga
Posterior root
medulla oblongata from the spinal cord
Tethered Spinal Cord is a condition where the spinal cord is attached to the spinal column and that causes the cord to become stretched.