Critique of Radiograph #24. 1  The diagnostic standard for the AP cervical spine view includes: 2  Demonstration of vertebrae C3 through T1, even if the patient is in a cervical collar. All soft tissues of the neck should be included on the AP view. 3  Radiograph density should include good penetration of the entire spine.
The enzyme named pepsin is released by some chief cells that can be found in the stomach. This enzyme has the capability and the role of degrading food proteins into peptides, thus producing digestion. Discovered in 1836, pepsin was the first revealed enzyme and also the first that was crystallized.
Instructions. 1  Pepsin Pepsin is âan inactive form of pepsinogen that is produced in the stomachâ. 2  It activates only during the digestion process and breaks down the proteins in the food into components like peptones, proteoses and polypeptides.nlike pepsin, pepsinogen can be converted to pepsin by hydrochloric acid (HCL). Pepsinogenâs secretion is stimulated by histamine, vagal stimulation and gastrin, whereas the same is not the case with pepsin. Moreover, pepsinogen is constant in both alkaline and natural solutions, while pepsin is not.