Submandib -floor of mouth & tongue

11-21 lecture

Submandibular Region

Area located beneath the mandible that includes vital structures such as glands, nerves, and muscles.

Lingual Nerve

Branch of CN V3 that provides general sensory innervation to the tongue and is joined by the chorda tympani.

Hypoglossal Nerve (CN XII)

Nerve responsible for motor innervation of most of the tongue muscles.

Suprahyoid Muscles

Muscles located above the hyoid bone that assist in elevating the hyoid during swallowing.

Mylohyoid Muscle

Muscle that forms the floor of the mouth, acting as a boundary between the oral cavity and neck.

Submandibular Gland

Salivary gland located in the submandibular triangle, involved in the production of saliva.

Sublingual Gland

Small salivary gland located beneath the tongue that releases saliva through multiple ducts.

Geniohyoid Muscle

Muscle that assists in tongue movement and elevates the hyoid bone during swallowing.

Digastric Muscle

Muscle with two bellies that aids in depress the mandible and elevates the hyoid during swallowing.

Facial Artery

Artery that supplies blood to the face and is associated with the submandibular triangle.

Lingual Vein

Vein that drains blood from the tongue and joins the internal jugular vein.

Taste Sensation

The sensation of taste realized through the facial nerve (CN VII) and glossopharyngeal nerve (CN IX).

V3 (Mandibular Division)

A branch of the trigeminal nerve providing sensory innervation to the teeth, gingivae of the mandible, and the floor of the mouth.

Intrinsic Tongue Muscles

Muscles located within the tongue that control its shape and movement, innervated by CN XII.

Frenulum of Tongue

Fold of tissue located under the tongue that connects it to the floor of the mouth.

Sublingual Fold

Membranous fold overlying the sublingual gland, which contains openings of its ducts.

Taste Pathways

Nerves involved in taste sensation from different regions of the tongue, including CN VII, IX, and X.

Hypoglossal Nerve Function

Innervates tongue muscles for movement; essential for speech and swallowing.

Coronoid Process

Projection of the mandible where muscles like temporalis attach.

Vallate Papillae

Large papillae located on the posterior part of the tongue that are involved in taste.