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digastric
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digastric
digastric, a. and n. Anat. (daɪˈgæstrɪk) [ad. mod.L. digastric-us, f. Gr. δι-, di-2 + γαστήρ, γαστρ- belly: cf. gastric. In F. digastrique ‘hauing two bellies’ Cotgr. 1611.] A. adj. 1. Having two parts swelling like bellies; spec. applied to muscles having two fleshy bellies with an intervening tend...
Oxford English Dictionary
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Digastric branch of facial nerve
The digastric branch of facial nerve provides motor innervation to the posterior belly of the digastric muscle.
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Digastric fossa of Mandible
The digastric fossa of the mandible is an anatomical region which occupies a space on the inner surface of the inferior border of the body of the mandible It is a position of attachment of the anterior belly of the digastric muscle.
References
Human head and neck
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jugulo-
jugulo- (ˈdʒuː-, ˈdʒʌgjʊləʊ) combining form of jugular a. and n., jugulum, in a few anatomical terms, as jugulo-ceˈphalic a., of or pertaining to the head and throat; in jugulo-cephalic vein, ‘an occasional vein which connects the cephalic and the external jugular veins’ (Syd. Soc. Lex. 1887); ˌjugu...
Oxford English Dictionary
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Stylohyoid branch of facial nerve
It frequently arises from the facial nerve (CN VII) in common with the digastric branch of facial nerve.
It is long and slender.
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which artery is located at the proximal end of the posterior somatosensory muscle
The upper branch diverts from the main trunk at the deep border of the posterior digastric muscle belly.
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Stylohyoid muscle
It is perforated near its insertion by the intermediate tendon of the digastric muscle. Relations
The muscle is situated anterosuperior to the posterior belly of the digastric muscle.
Variation
It may be absent or doubled.
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Trigeminal motor nucleus
muscles of the first branchial arch, namely the muscles of mastication, the tensor tympani, tensor veli palatini, mylohyoid, and anterior belly of the digastric
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Sternocleidomastoid branches of occipital artery
The upper sternocleidomastoid branch diverts from the main trunk at the deep border of the proximal end of the posterior digastric muscle belly, coursing
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Suprahyoid muscles
The digastric is uniquely named for its two bellies. When the two bellies of the digastric contract, they pull upward on the hyoid bone; but if the hyoid is fixed from below, the digastric assists in extreme
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Mylohyoid nerve
It provides motor innervation the mylohyoid muscle, and the anterior belly of the digastric muscle. Distribution
Motor
The mylohyoid nerve supplies the mylohyoid muscle and the anterior belly of the digastric muscle.
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Superior deep cervical lymph nodes
Jugulodigastric group
Superior deep cervical lymph nodes situated in a triangular region bounded by the posterior belly of the digastric muscle, the facial
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Jugulodigastric lymph node
Structure
The jugulodigastric lymph nodes are found in the proximity of where the posterior belly of the digastric muscle crosses the internal jugular
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Cervical lymph nodes
Level Ib: Submandibular triangle - within the boundaries of the anterior belly of the digastric muscle, the stylohyoid muscle and the body of the mandible muscle, Anterior belly of ipsilateral digastric muscle
Level IB: Body of mandible, Posterior belly of digastric muscle, Anterior belly of digastric muscle
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Submandibular space
potential space, and is paired on either side, located on the superficial surface of the mylohyoid muscle between the anterior and posterior bellies of the digastric medially and anteriorly to the submental space (located medial to the paired submandibular spaces, separated from them by the anterior bellies of the digastric
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