Anatomy: The muscles on the back of the upper arm (brachium) comprise the 3-headed arm stretcher (M triceps brachii). The muscle primarily stretches the elbow joint (and the shoulder joint). 1  Clavicula.  Bursa subcutanea acromialis.
Overview. The cervical spine is made up of 7 vertebrae. The first 2, C1 and C2, are highly specialized and are given unique names: atlas and axis, respectively. C3-C7 are more classic vertebrae, having a body, pedicles, laminae, spinous processes, and facet joints.
Confidence votes 54.4K. The spinal cord is made up of nerve tissue. This is a thick bundle of neurons that runs through the spinal canal or the vertebral column. The vertebral column is the tower of vertebral bones typically called the spine by laymen. The spine is in fact the amalgamation of the two. In other words the spine is the vertebral column with the nervous spinal cord running through it.