Colon: funzione e anatomia

What is the colon? Bauhin’s valve marks the beginning of the colon in the right lower abdomen. It sits at the junction with the last section of the small intestine (ileum) and prevents intestinal contents from being forced from the colon back into the ileum. The large intestine first leads upward (to the underside of … Colon: funzione e anatomia


What is the structure of the nail? Finger and toe nails are corneal plates consisting of keratin. The smooth, transparent nail plate is fused with the underlying nail bed and flows into the free nail edge at the bottom. On the three other sides, the nail plate is bordered by the nail wall. The upper … Nails