anatomical wall

organ wall

Organ component adjacent to an organ cavity and which consists of a maximal aggregate of organ component layers.

種類 Organ
親構造 organ part
ラテン語名 organ wall
FMA ID 82482

下位構造

pelvic wall Bone septum of scrotum Muscle membrana tympaniformis Organ abdominal wall Muscle alveolar wall Organ chest wall Organ thoracic wall Muscle uterine wall Organ posterior wall of the glottis Organ wall of orbit Organ gut wall Organ lateral wall of nasal cavity Vessel wall of blood vessel Vessel wall of central canal of spinal cord Organ wall of ureter Organ wall of urinary bladder Organ wall of ventricular system of brain Organ

よくある質問

What is an anatomical wall in the context of organ structure?
An anatomical wall is an organ component that forms the boundary adjacent to an organ cavity — it is the maximal aggregate of all the component layers that enclose the hollow space. For example, the wall of the stomach consists of four concentric layers (mucosa, submucosa, muscularis externa, and serosa) that together constitute the anatomical wall surrounding the gastric lumen. The concept unifies all structural layers under a single organizational term.
How are anatomical walls organized into layers?
Hollow organs typically have walls organized into concentric tissue layers (tunica or laminae). In the gastrointestinal tract, the standard four layers are: the mucosa (innermost, secretory/absorptive epithelium with lamina propria and muscularis mucosae), the submucosa (connective tissue with nerves and vessels), the muscularis externa (smooth muscle for peristalsis), and the outermost serosa or adventitia. Similar layered wall organization appears in the urinary bladder, uterus, and blood vessels.
Why is the concept of anatomical wall important in anatomy and pathology?
The anatomical wall concept is important for both descriptive anatomy and clinical staging of disease. In cancer pathology, tumor staging (such as the TNM system) relies on assessing how deeply a tumor has penetrated through successive layers of the organ wall — for example, whether colorectal cancer has breached the mucosa, muscularis, or serosa determines its T-stage and guides treatment. Knowing the layer-by-layer structure is essential for surgical planning and understanding disease spread.

関連構造

mucus body coating mucous body coating mucus cocoon mucous cocoon Mullerian duct ductus paramesonephricus multi cell part structure cell part cluster multicellular anatomical structure multicellular structure multilaminar epithelium laminated epithelium multi-tissue structure multi-tissue structures multi-unit eye

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Educational Disclaimer

This content is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for medical decisions.

Data sources: Terminologia Anatomica, Foundational Model of Anatomy, Wikidata.