Cervical spine fractures can occur secondary to exaggerated flexion or extension, or because of direct trauma or axial loading. Pathology. The cervical spine is susceptible to injury because it is highly mobile with relatively small vertebral bodies and supports the head which is both heavy and acts as a lever.
The inactive molecule pepsinogen is cleaved in a strongly acidic environment to give off the active enzyme, pepsin. Pepsinogen is produced in the stomach by chief cells.
Pepsin is an enzyme which is secreted by Zymogen cells of  the stomach. First it is secreted in an inactive form called  Pepsinogen. After that Hydrochloric acid (HCl) activ â¦ ates it  into pepsin.FUNCTION:   Its function is to hydrolyse the proteins to yield peptide.epsin is a protease, i.e. an enzyme that catalyzes the breakdown of proteins. In humans, it is secreted by certain cells (called chief cells) in the lining of the stomach. Specifically, pepsin breaks the peptide bonds linking amino acids in the chains found in proteins. Pepsin cannot break all peptide bonds, however.