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.
Pepsin is the main gastric enzyme. It is produced by the stomach cells called chief cells in its inactive form pepsinogen, which is a zymogen. Pepsinogen is then activated by the stomach acid into its active form, pepsin. Pepsin breaks down the protein in the food into smaller particles, such as peptide fragments and amino acids. Protein digestion, therefore, first starts in the stomach, unlike carbohydrate and lipids, which start their digestion in the mouth.