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Sagittal section of nose mouth, pharynx, and larynx. (Frenulum linguae is the topmost label at right.) The frenulum (or frenum) of the tongue, tongue web, lingual frenulum, frenulum linguae, or fraenulum[1] is a small fold of mucous membrane extending from the floor of the mouth to the midline of the underside of the human tongue.
Signs inside the mouth may include elevation of the floor of mouth due to sublingual space involvement and posterior displacement of the tongue, creating the potential for a compromised airway. [8] Additional symptoms may include painful neck swelling, drooling, tooth pain, dysphagia, shortness of breath, fever, and general malaise. [9]
The lingual nerve supplies general somatic afferent (i.e. general sensory) innervation to the mucous membrane of the anterior two-thirds of the tongue (i.e. body of tongue) (whereas the posterior one-third (i.e. root of tongue) is innervated via the glossopharyngeal nerve (CN IX) [citation needed]), the floor of the oral cavity, and the mandibular/inferior lingual gingiva.
The skeletal section of the head and neck forms the top part of the axial skeleton and is made up of the skull, hyoid bone, auditory ossicles, and cervical spine. The skull can be further subdivided into: the cranium (8 bones: frontal, 2-parietal, occipital, 2-temporal, sphenoid, ethmoid), and.
Sensation - The oral mucosa is richly innervated, meaning it is a very good at sensing pain, touch, temperature and taste. A number of cranial nerves are involved in sensations in the mouth including trigeminal (V), Facial (VII), glossopharyngeal (IX) and Vagus (X) nerves. The dorsum of the tongue is covered in specialised mucosa.
52996. Anatomical terms of neuroanatomy. [edit on Wikidata] In neuroanatomy, the mandibular nerve (V3) is the largest of the three divisions of the trigeminal nerve, the fifth cranial nerve (CN V). Unlike the other divisions of the trigeminal nerve (ophthalmic nerve, maxillary nerve) which contain only afferent fibers, the mandibular nerve ...
e. The hypoglossal nerve, also known as the twelfth cranial nerve, cranial nerve XII, or simply CN XII, is a cranial nerve that innervates all the extrinsic and intrinsic muscles of the tongue except for the palatoglossus, which is innervated by the vagus nerve. [a] CN XII is a nerve with a sole motor function.
Sublingual caruncles highlighted on either side of the lingual frenulum. Each submandibular gland is divided into a superficial lobe and a deep lobe, the two being separated by the mylohyoid muscle: [3] The superficial lobe comprises most of the gland, with the mylohyoid muscle runs under it. The deep lobe is the smaller part.