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 secreted in an inactive form, called pepsinogen by chief cells. Parietal cells secrete hydrochloric acid which converts pepsinogen to the active pepsin only when both reach the lumen of the stomach, minimizing self digestion Minimize self digestion and pepsin hydrolyses proteins.Source(s): From my Univeristy notes =).arietal cells secrete hydrochloric acid which converts pepsinogen to the active pepsin only when both reach the lumen of the stomach, minimizing self digestion Minimize self digestion and pepsin hydrolyses proteins. Source(s): From my Univeristy notes =).