What is a mucous membrane?
The term mucosa, or mucous membrane, indicates the tunic that lines the organism cavities communicating directly or indirectly with the outside, belonging to the respiratory, digestive, urogenital systems, and whose surface is kept constantly humid thanks to the presence of glands that produce mucus.
The mucosa - also called mucous membrane or mucous membrane - is a layered structure that covers the internal surface of the body's cavities and canals communicating with the outside.
Mucous membranes are soft and thin tissues that line the body cavities that are found in the extension of the skin and are open to the outside. Therefore the mucous membranes are found in five areas of the body: The digestive system, from the mouth to the anus. The respiratory system, from the nostrils to the lungs.
The mucous cells of the collar are the main constituent of the gastric glands. The mucous cells of the collar constitute the main cell typology of this area of the gastric gland.
The lamina propria (more correctly lamina propria mucosae) is a thin layer of loose connective tissue that lies under the epithelium and together with the epithelium forms the mucosa. As the Latin name indicates, it is a characteristic component of the mucosa, "the specific layer of the mucosa".
From the structural point of view, the organs are divided into hollow organs and full organs. The former consist of walls that enclose a light, suitable for holding a content, while the latter lack a main cavity, with the fabrics organized in compact and well-resistant structures.
Types of membranes: epithelial and connective tissue
Mucous membranes cover the internal surfaces of hollow organs that communicate with the outside. ... The epithelium can be: paved, cylindrical, cubic. SEROUS lining the internal cavities of the body that do not communicate with the outside (abdominal and thoracic cavity).
anatomy The epithelium is made up of cells of regular shape huddled together ... mucus anatomy and medicine Viscous and stringy liquid that wets the mucous membranes. It is composed of water, mucins, inorganic substances and leukocytes and exerts both mechanical and antibacterial protective action on the mucous membranes.
Mucus is produced by muciparous glands and mucipar goblet cells intercalated in some lining epithelia.
The parietal cells are cells present in the stomach responsible for the production of gastric juices and intrinsic factor and therefore capable of promoting digestion. Intrinsic factor is a molecule necessary for the absorption of vitamin B12 from food.
- antiseptic drugs, useful for disinfecting the oral cavity.
- oral supplements based on vitamin "E", which can help in maintaining the elasticity, hydration and integrity of the mucous barrier.
Stay well hydrated by drinking plenty of fluids and avoiding alcoholic beverages. Humidify the room if the air is very dry. Keep the nasal passages well hydrated (eg with spray or steam) Sleep with your head raised to help (thanks to gravity) the outflow of mucus.
Dog. The oculo-conjunctival mucosa, the buccal mucosa and the vaginal mucosa are to be examined. During the examination of the buccal mucosa it is also necessary to evaluate the capillary filling time, an indication of fundamental clinical importance on the state of the cardio-circulatory system.
Anatomical structure capable of perceiving odors. It extends for an area of about two and a half square centimeters for each nasal cavity, in correspondence with the upper third of the septum and the upper basin or meatus.
Mucous membranes generally consist of a superficial epithelium, which can appear as simple, pseudostratified or multilayered epithelium, or transition cells, in which the goblet cells or ducts of the mucus glands that produce mucus are located, and connective tissue. .
The mucosa (or mucous membrane, or mucous membrane) is the tissue portion in direct contact with the lumen of the animal hollow organs that are in communication with the external environment, such as the digestive canal and the respiratory tract (thus excluding the organs of cardiovascular system).
In the respiratory system the mucus has the task of capturing bacteria and dust avoiding their entry into the body, this occurs mainly in the nose. It also has a fundamental role in keeping the mucous membranes of the body always moist to prevent them from drying out.
Mucus is produced by the secretory (or muciparous) glands of many parts of the body; that present in the respiratory tract is secreted in the nasal cavities and in the trachea. Every day we produce about 1 liter of mucus, which is expelled from the body thanks to the movement of the eyelashes.
Mucorrhea is typical of proctitis (inflammation of the rectal mucosa), ulcerative colitis, Crohn's disease and intestinal infections of a bacterial nature (Campylobacter, Salmonella, Shigella); in these cases it is often accompanied by diarrhea and the presence of blood in the stool.
In vertebrates this tissue constitutes, in particular, the inner and outer covering of most of the body surfaces. Wherever they are, the epithelial tissues are separated from the underlying ones by a non-cellular, fibrous basement membrane.
It is located inside the bladder and if necessary, since this structure must contain variable volumes of liquid, it can be extended by making the club cells dilate and making the umbrella cells flatten.
They can be paved / scaly (if flattened and multilayered), cubic (dimensions on the three similar axes) and columnar / cylindrical (height that prevails over width). The cheek cells (buccal mucosa) are squamous and multilayered epithelial cells.
serous A thin membrane that delimits closed cavities in the adult or embryo. In anatomy the s. they are present in the thorax and abdomen and relate to various organs of the digestive, respiratory, circulatory and urogenital systems: they are called s.
The serous are made up of a layer of connective tissue, rich in elastic fibers, and of a simple paving epithelium, called mesothelium. Their surface is moistened with a colorless transparent liquid, which has characteristics similar to plasma.
The state of the skin and visible mucous membranes (substantially that of the oral cavity) is a useful element that allows us to diagnose both primary pathological conditions affecting the integumentary system, and signs, peculiar or non-specific, of pathologies affecting other organs and systems .