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KMID : 1237720230560040441
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Anatomy & Cell Biology
2023 Volume.56 No. 4 p.441 ~ p.447
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A clinical perspective on the anatomical study of digastric muscle
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Nandini Prashanth Bhat
Suhani Sumalatha
Ashwija Shetty
Sushma Prabhath
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Abstract
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One of the suprahyoid muscles is the digastric muscle which comprises anterior and posterior bellies joined byan intermediate tendon. Because of its close relationship with the submandibular gland, lymph nodes, and chief vessels ofthe neck, detailed knowledge about the morphometry of the digastric muscle is essential. The objective of the current cross-sectional evaluative study is to record morphometry along with the digastric muscle’s origin, insertion, and variability.
Forty human cadavers (25 males and 15 females) were dissected, and the head and neck regions were studied in detail. Theattachment of the digastric muscle anterior belly to the digastric fossa of the mandible was noted, and the distal attachment ofthe posterior belly to the mastoid notch was traced. The length of the anterior belly from the digastric fossa to its intermediatetendon and the length of the posterior belly from the intermediate tendon to its mastoid attachment were measured. There is afair correlation between the length of the neck and the length of the anterior and posterior belly. The study also identified twocases of bilateral accessory bellies of the anterior belly of the digastric. Normal morphometric data is provided by this studyon details of the digastric muscle. It is significant from a clinical and surgical point of view as the muscle lies in proximity tothe important structures of the neck.
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KEYWORD
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Digastric muscle, Anterior belly, Posterior belly, Morphometry, Variation
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