Mucous membrane
LAYERS: serosa longitudinal muscle myenteric plexus circular muscle submucosal plexus submucosal mucosal
Section of the human esophagus. Moderately magnified. The section is transverse and from near the middle of the gullet. a. Fibrous covering. b. Divided fibers of longitudinal muscular coat. c. Transverse muscular fibers. d. Submucous or areolar layer. e. Muscularis mucosae. f. Mucous membrane, with vessels and part of a lymphoid nodule. g. Stratified epithelial lining. h. Mucous gland. i. Gland duct. m’. Striated muscular fibers cut across.
Latin	tunica mucosa
Gray's	subject #242 1110
Dorlands/Elsevier	t_22/12831913

The mucous membranes (or mucosae; singular: mucosa) are linings of mostly endodermal origin, covered in epithelium, and are involved in absorption and secretion. They line various body cavities that are exposed to the external environment and internal organs. It is at several places continuous with skin: at the nostrils, the lips, the ears, the genital area, and the anus. The sticky, thick fluid secreted by the mucous membranes and gland is termed mucus. The term 'mucous membrane' refers to where they are found in the body and not every mucous membrane secretes mucus. Image File history File links Ens. ... A serous membrane is a very thin layer of cells (usually one row) covering internal body cavity. ... The muscular coat (or muscular layer, or muscular fibers, or muscularis externa) is a region of muscle in many organs in the vertebrate body, adjacent to the mucous membrane. ... Part of the enteric nervous system, Auerbachs plexus exists between the longitudinal and circular layers of muscle in the gastrointestinal tract and provides motor innervation to both layers and secretomotor innervation to the mucosa. ... The muscular coat (or muscular layer, or muscular fibers, or muscularis externa) is a region of muscle in many organs in the vertebrate body, adjacent to the mucous membrane. ... The nerves of the small intestines are derived from the plexuses of parasympathetic nerves around the superior mesenteric artery. ... In the gastrointestinal tract. ... Image File history File links Gray1033. ... The muscular coat (or muscular layer, or muscular fibers, or muscularis externa) is a region of smooth muscle in many organs in the vertebrate body, adjacent to the mucous membrane. ... The muscular coat (or muscular layer, or muscular fibers, or muscularis externa) is a region of muscle in many organs in the vertebrate body, adjacent to the mucous membrane. ... In the gastrointestinal tract. ... Section of mucous membrane of human rectum. ... Structure of the lymph node. ... Stratified epithelial lining can refer to: Stratified squamous epithelium Stratified columnar epithelia Stratified cuboidal epithelium Category: ... Exocrine glands are glands that secrete their products into ducts. ... In in anatomy and physiology, a duct is a circumscribed channel leading from a exocrine gland or organ. ... Striated muscle can refer to: Skeletal muscle Cardiac muscle In practice, the term striated muscle is sometimes used to refer exclusively to skeletal muscle when distinguishing it from smooth muscle. ... Latin is an ancient Indo-European language originally spoken in Latium, the region immediately surrounding Rome. ... Elseviers logo. ... Organs derived from each germ layer. ... Types of epithelium This article discusses the epithelium, an animal anatomical structure. ... Please wikify (format) this article or section as suggested in the Guide to layout and the Manual of Style. ... Secretion is the process of segregating, elaborating, and releasing chemicals from a cell, or a secreted chemical substance or amount of substance. ... In biology, an organ (Latin: organum, instrument, tool) is a group of tissues that perform a specific function or group of functions. ... It has been suggested that this article or section be merged with Epidermis (skin). ... A nostril is one of the two channels of the nose, from the point where they bifurcate to the external opening. ... This article or section does not cite its references or sources. ... Bat ears come in different sizes and shapes The ear is the sense organ that detects sound. ... Female Human Anatomy Male Human Anatomy This article is about the bodily orifice. ... A gland is an organ in an animals body that synthesizes a substance for release such as hormones, often into the bloodstream (endocrine gland) or into cavities inside the body or its outer surface (exocrine gland). ... Mucus is a slippery secretion of the lining of various membranes in the body (mucous membranes). ... With regard to living things, a body is the integral physical material of an individual, and contrasts with soul, personality and behavior. ...

Body cavities featuring mucous membrane include most of the respiratory system. The glans penis (head of the penis) and glans clitoris and the inside of the prepuce (foreskin) and clitoral hood are mucous membranes, not skin. The Respiratory System Among four-legged animals, the respiratory system generally includes tubes, such as the bronchi, used to carry air to the lungs, where gas exchange takes place. ... The glans penis is the sensitive erectile tip of the penis. ... The penis (plural penises, penes) is an external male sexual organ. ... A womans clitoris extends from the visible portion to a point below the pubic bone. ... The prepuce is a retractable piece of skin which covers part of the genitals of primates and other mammals. ... In female human anatomy, the clitoral hood, (also called prepuce), is a fold of skin that surrounds and protects the clitoral glans. ...

Components

• Epithelium
• Lamina propria
• Smooth muscle/Muscularis mucosa/ (GI tract)

Types of epithelium This article discusses the epithelium, an animal anatomical structure. ... The lamina propria is a thin vascular layer of connective tissue beneath the epithelium of an organ. ... Cultured Smooth muscle of the aorta. ... The muscularis mucosae is the thin layer of smooth muscle found in most parts of the gastrointestinal tract located outside the lamina propria mucosae and adjacent to the submucosa. ...

Types of mucosa (incomplete)

• Buccal mucosa
• Gastric mucosa
• Intestinal mucosa
• Olfactory mucosa
• Oral mucosa
• Endometrium is the mucosa of the uterus

Buccal mucosa is mucous membrane of the inside of the cheek. ... The gastric mucosa the mucous membrane layer of the stomach which contains the glands and the gastric pits. ... For the Physics term GUT, please refer to Grand unification theory The gastrointestinal or digestive tract, also referred to as the GI tract or the alimentary canal or the gut, is the system of organs within multicellular animals which takes in food, digests it to extract energy and nutrients, and... The olfactory mucosa is an organ made up of the olfactory epithelium and the mucosa, or mucus secreting glands, behind the epithelium. ... The mucous membranes (or mucosae; singular: mucosa) are linings of ectodermic origin, covered in epithelium, and are involved in absorption and secretion. ... The endometrium is the inner uterine membrane in mammals which is developed in preparation for the implantation of a fertilized egg upon its arrival into the uterus. ... The uterus or womb is the major female reproductive organ of most mammals, including humans. ...

Additional images

Wall of the ureter. Image File history File links Illu_ureters_wall. ...

Stomach Image File history File links Illu_stomach2. ...

Section of mucous membrane of human stomach, near the cardiac orifice. Image File history File links Gray1053. ...

See also

• Mucin
• Mucocutaneous boundary

Mucins are a family of large, heavily glycosylated proteins. ... The mucocutaneous boundary is the point near the orifices of the body at which the external skin stops and the mucosa that covers the inside of the body starts. ...

External links

• Dictionary at eMedicine mucosa
• Organology at UC Davis Digestive/mammal/system1/system4 - "Mammal, whole system (LM, Low)"
• MeSH Mucous+Membrane