The pectinate line
WebbUpper region (frequently named pecten): It’s 15 millimeters long and stretches from the pectinate line to Hilton’s line. It’s lined by the non-keratinized stratified squamous epithelium. The mucous lining in this region appears bluish in colour because of underlying dense venous plexus and is adherent to the underlying structures. Webb27 dec. 2016 · Anus and Perianal Area. Whenever the anatomy of the anal canal is discussed, one visible landmark, namely the dentate or pectinate line, is mentioned as important. This line is located at the distal end of the anal columns where the anal valves are situated. It has also been called the mucocutaneous line, although it is separated …
The pectinate line
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WebbThe horizontal line along which the anal valves lie is called the pectinate (“comb-shaped”) line. Because the mucosa superior to this line is innervated by visceral sensory fibers, it is relatively insensitive to pain. Inferior to the pectinate line, however, the mucosa is sensitive to pain because it is innervated by somatic nerves. Webb3 juni 2024 · Ano-Rectal anatomy: Above and below pectinate line Here's an illustration I made :) It shows the embryology, pathology, innervation, blood supply, venous drainage and lymphatic drainage on the rectum above and below pectinate line. That's all! A modified version of this will be in the First Aid book! :) -IkaN Posted by IkaN (Nakeya Dewaswala, …
Webb6 feb. 2024 · The bottom line is that it is the arrangement of the atrial appendages that indicates the presence of cardiac isomerism, as opposed to problems with either ventricular looping or specific ventriculo-arterial connections. ... The left-hand panel shows the pectinate muscles extending bilaterally to meet at the cardiac crux, ... Webb2 aug. 2024 · Histological images. (a) Histological image of the vicinity of the pectinate line of the anal canal showing the invasion of adenocarcinoma with tube formation directly under the stratified squamous epithelium. It was mucinous. Pagetoid cells, which are large clear cells, diffused into the stratified squamous epithelium.
Webb23 jan. 2024 · Essential features Diagnostic: Absent ganglion cells, submucosal nerve hypertrophy, absent calretinin immunoreactive mucosal innervation and increased cholinergic mucosal innervation (AChE histochemistry or ChT immunohistochemistry) Intraoperative: Levelling biopsy: identification of ganglion cells WebbAn imaginary line that extends from the ala of the nose to the tragus of the ear. The line is an estimated point of entry for intraoral dental radiographs of the maxilla and is also used in denture prosthodontics. arcuate line 1. The lower edge of the iliac fossa of the ilium.
WebbThe pectinate line is an important anatomic landmark, as it is where the blood supply, lymphatics, and nerves differ based on being above or below the pectinate line. Can you feel the pectinate line? Internal hemorrhoids are the hemorrhoids in the anal canal above the pectinate line, also known as the pain line because below this area you feel pain.
Webb4 juni 2012 · The dentate (pectinate) line divides the anal canal into upper (two-thirds) and lower (one-third) parts, each one being supplied by completely different neurovascular … the show the ranch castWebb1 INTRODUCTION. The study of anatomy relies upon the ability to investigate three-dimensional (3D) spatial relationships between structures (Miller, 2000).Many authors have advocated that the best approach to learning anatomy is to use dissected cadaveric specimens within a dedicated ‘wet’ laboratory facility (Aziz et al., 2002; Kerby et al., 2011; … my thai prince georgeWebb30 mars 2024 · Chronic anal fissure presents as longitudinal, deep ulcer, sometimes coated with smear. Secondary changes can occur in their development, such as hypertrophied anal papillae close to the proximal edge of the fissure at the level of the pectinate line, also pathologically altered crypts (anal cryptitis) or sentinel tags … the show the showWebb2 aug. 2024 · The inferior rectal nerve, also known as the inferior anal nerve or inferior hemorrhoidal nerve, is a branch of the pudendal nerve which is derived from S2, S3 and S4 nerve roots of the sacral plexus.The nerve provides sensory innervation to the anal canal inferior to the pectinate line and motor innervation to the external anal sphincter. the show the rockWebbThe postmortem finding of anal dilation or an exposed pectinate line in children who have died under suspicious circumstances continues to raise the concern of possible sexual … the show the talkWebbThe pectineal line of the pubis (also pecten pubis) is a ridge on the superior ramus of the pubic bone. It forms part of the pelvic brim . Lying across from the pectineal line are fibers of the pectineal ligament, and the … my thai restaurant baltimoreWebbPectinate line Overview Template:Infobox Anatomy The pectinate line ( anocutaneous line, dentate line, anal verge, anorectal junction) is a line which marks the end of the rectum … the show the pros watch