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Chief cells are part of fundic gland polyps (here shown in high magnification). [11]In gastric tissue, a loss of parietal cells due to chronic inflammation has been shown to affect chief cell differentiation and can induce chief cells to transdifferentiate back into neck cells and can lead to the formation of mucus cell metaplasia known as spasmolytic polypeptide expressing metaplasia (SPEM ...
Pepsinogen is a precursor enzyme produced by the gastric chief cells, and gastric acid activates this to the enzyme pepsin which begins the digestion of proteins. As these two chemicals would damage the stomach wall, mucus is secreted by innumerable gastric glands in the stomach, to provide a slimy protective layer against the damaging effects ...
Gastrointestinal physiology is the branch of human physiology that addresses the physical function of the gastrointestinal (GI) tract.The function of the GI tract is to process ingested food by mechanical and chemical means, extract nutrients and excrete waste products.
Depending on how their products are secreted, exocrine glands are categorized as merocrine, apocrine, or holocrine. [ 1 ] Merocrine – the cells of the gland excrete their substances by exocytosis into a duct; for example, pancreatic acinar cells, eccrine sweat glands [ dubious – discuss ] , salivary glands , goblet cells , intestinal glands ...
Gross anatomy (also called topographical anatomy, regional anatomy, or anthropotomy) is the study of anatomical structures that can be seen by the naked eye. [1] Microscopic anatomy is the study of minute anatomical structures assisted with microscopes , which includes histology (the study of the organization of tissues), [ 1 ] and cytology ...
The history of anatomy in the United States is a rich and multifaceted narrative, closely tied to the evolution of medical education and scientific discovery. Anatomical education in the U.S. began in the mid-18th century, with notable pioneers like William Shippen Jr., who delivered public lectures on anatomy, including human dissections, in ...
No. 6 Washington Commanders vs. No. 2 Philadelphia Eagles Follow USA TODAY Sports' Tyler Dragon on X @TheTylerDragon . This article originally appeared on USA TODAY: NFC championship game ...
The discipline of anatomy can be subdivided into a number of branches, including gross or macroscopic anatomy and microscopic anatomy. [9] Gross anatomy is the study of structures large enough to be seen with the naked eye, and also includes superficial anatomy or surface anatomy, the study by sight of the external body features.