Salivary Glands PancreasEsophagus LiverGallbladder Ascending Colon
Ileum Rectum AppendixPancreasStomach Transverse ColonDescending Colon Cecum Parotid Gland Sublingual Gland
Submandibular Gland Coranary LigamentCystic Duct DuedonumFalciform Ligament Sublingual GlandGallbladder Hepatic Duct Pancreatic Duct Common Bile Duct Parotid Gland
The levator ani muscles, a band of muscles that appears like plate, comprise the pelvic floor and surround the anus. Meanwhile, the anal wall is consists of circular muscles known as the external sphincter ani, which keep the anus close.
Externally, the anus is a body opening just adjacent to the perineum, posterior to the scrotum in males or behind the vaginal opening in females . As an orifice or opening, the anus function as portal of exit for the digestive waste or feces (stool) during defecation. It is a significant structure checked by medical professionals upon a child’s birth due to the incidence of imperforate anus, a congenital condition by which a newborn’s anus is blocked or there is no opening through which the feces can pass by during defecation.