Also found in: Medical, Encyclopedia, Wikipedia.


 (dī-găs′trĭk) Anatomy
Having two fleshy ends connected by a thinner tendinous portion. Used of certain muscles.
A muscle of the lower jaw that elevates the hyoid bone and assists in lowering the jaw.


(Anatomy) (of certain muscles) having two fleshy portions joined by a tendon
(Anatomy) a muscle of the mandible that assists in lowering the lower jaw
[C17: from New Latin digastricus (with two bellies), from di-1 + gastricus gastric, from Greek gastēr belly]


(daɪˈgæs trɪk)

1. (of a muscle) having two bellies with an intermediate tendon.
2. a muscle of the lower jaw serving to open the mouth.
[1690–1700; < New Latin digastricus. See di-1, gastric]
Mentioned in ?
References in periodicals archive ?
4 Other mandibular depressor muscles include the geniohyoid, mylohyoid, and the digastric muscles.
Necrosis of the mastoid process that extends to the digastric groove may result from inflammation and infection due to otitis media, leading to various abscesses like Bezold abscess [7].
3) Important structures seen surrounding the styloid process laterally are the facial nerve, the hypoglossal nerve, the occipital artery and the posterior belly of digastric muscle.
2, 3, 9, 13) Its sheath extends superiorly to the jugular foramen and inferiorly to the aortic arch and is bordered anteriorly by the styloid process and PPS, laterally by the anterior belly of the digastric muscle and the PS and medially by the lateral margin of the RPS.
salivarius had a beneficial effect on performance and immune function in broiler chicken [3], There are three predominant species of Lactobacillus in the chicken digastric tract (L.
The choice of suprahyoid muscles (mylohyoid muscles, genius-hyoid, digastric and style-hyoid) to evaluate the effect of NMES in dysphagia intervention occurs for the importance of the contraction of these muscles in the swallowing.
The ventral midline incision was done on the neck; then, careful blunt dissection was performed within the triangle formed by the sternohyoid, digastric, and sternomastoid muscles; common carotid artery was exposed; and the silk suture was placed around the vessel.
We recorded EMG activity [or submental EMG (SM-EMG)] on the second channel of the EMG apparatus using bipolar silver chloride electroencephalographic (EEG) electrodes taped under the chin and over the mylohyoid-geniohyoid-anterior digastric muscle complex.
Although the digastric muscle has been specified as one of the masticatory muscles by some researchers (Scapino 1965; Getty 1975) in this study the masticatory muscles have been observed as the masseter temporal lateral and medial pterygoid muscles similar to what is the case in the literature (Schmolke 1994; Velesco et al.
Medially, it abutted and displaced the adjacent anterior belly of the digastric and mylohyoid muscles.
The antagonistic response from the digastric muscles pulls the jaw apart.
Table-1: Diagnostic criteria used for classifying acute /chronic ear, nose and throat infections Symptoms Clinical Findings Constitutional symptoms Congested posterior pharyngeal wall Throat pain Congested tonsil Odynophagia Pus points on tonsil Cough Palpable Jugulo digastric node >1.