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The pectinate line

WebbBelow it, lymphatic drainage is to the superficial inguinal nodes. [2] Hilton's white line is slightly below the pectinate line, a landmark for the intermuscular border between internal and external anal sphincter muscles.. This line represents the transition point from non-keratinized stratified squamous epithelium of the anal canal to keratinized stratified … WebbThe opening of the pit is lined with epithelial cells that secret a thick basic mucous that aids in the protection of the gastric mucosa (lining) found throughout the stomach. If we …

Anatomy, Abdomen and Pelvis: Anal Triangle Article - StatPearls

Webb1 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; … WebbFinally, the hindgut extends from the distal third of the transverse colon to the anal canal, above the pectinate line. It consists of the distal portion of the transverse colon, descending colon and sigmoid colon and rectum. Now, remember that organs with the same embryologic origin share the same arterial supply, ... northampton fortus https://shopbamboopanda.com

Ano-Rectal anatomy: Above and below 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. WebbThe pectinate line is called the watershed line because it separates the two entirely different parts of the anal canal (in terms of development, nerve supply, blood supply and lymphatic drainage). How far in is dentate line? The median distance between the dentate line and the anal verge was 2.0 cm. 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 … northampton forecast

Schwalbe line definition of Schwalbe line by Medical dictionary

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The pectinate line

21.5: The Small and Large Intestines - Medicine LibreTexts

WebbPectinate 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 … 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 …

The pectinate line

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Webb23 juni 2024 · Dentate line (= pectinate line)은 anal canal 내부에서 서로 다른 두 점막이 만나는 경계입니다. 신경, 혈액 공급, 림프 drainge 등이 dentate line을 경계로 달라집니다. (홍성노 교수님 comment: Dentate line (= pectinate line)은 anal canal 내부에서 서로 다른 두 점막이 만나는 경계입니다. 신경, 혈액 공급, 림프 drainge 등이 dentate line을 경계로 … WebbThe pectinate or dentate line is a histologic transition zone between squamous and columnar epithelium at the level of the anal valves. … Below the pectinate line, the …

WebbWe indicate anterior and posterior. We show the anal columns, which are folds of tissue raised by the underlying vasculature. Inferiorly at the end of the columns, we see the pectinate line, which is a mucocutaneous line marking the demarcation between lining derived from endoderm superiorly and ectoderm inferiorly. WebbThe anal canal begins at the anal verge and ends at the anorectal junction (pectinate line, mucocutaneous junction, dentate line), where there are 8 to 12 anal crypts and 5 to 8 papillae. The canal is lined with anoderm, a continuation of the external skin. The anal canal and adjacent skin are innervated by somatic sensory nerves and are highly …

http://medbox.iiab.me/kiwix/wikipedia_en_medicine_2024-12/A/Intersphincteric_groove Webb23 juli 2016 · The anal valves collectively form an irregular circle – known as the pectinate line (or dentate line). This line divides the anal canal into upper and lower parts, which …

WebbThe 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 …

WebbThe 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 … northampton freecycleWebbLower rectum to anal canal (above pectinate line) - recall how the pectinate line is an important border (eg for portal vs systemic venous drainage, for visceral vs somatic innervation) Superficial inguinal . Anal canal (below pectinate line) - … northampton forterraWebbAlso known as inner hemorrhoids or internal piles, these conditions cause inflamed vascular structures inside the anal canal. They’re located above the pectinate line and are mostly painless. Unlike external hemorrhoids, can’t be seen from the outside since external hemorrhoids are located below the pectinate line. northampton fuelsWebb8 aug. 2024 · The inguinal lymph node can be subdivided into the superficial and deep lymph nodes and collectively drains the anal canal(below the pectinate line), the skin below ... how to repair rv toilet valveWebb2 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. how to repair rv slide out motorWebb2 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. northampton free library richboroWebbThe opening of the pit is lined with epithelial cells that secret a thick basic mucous that aids in the protection of the gastric mucosa (lining) found throughout the stomach. If we were to look deeper into the pit, we would see that the pit actually turns into the gastric gland. Within the gland, we see specialized epithelial cells. northampton football club fixtures