Anterior Triangle of Neck

• Innervation: Facial Nerve [VII]
• Function: Pulls hyoid bone upward in a posterosuperior direction

• Innervation: Mylohyoid nerve from inferior alveolar branch of mandibular nerve [V3]
• Function: opens mouth by lowering mandible, raises hyoid bone

• Innervation: Facial Nerve [VII]
• Function: Pulls hyoid bone upward and back

• Innervation: mylohyoid nerve from inferior alveolar branch of mandibular nerve [V3]
• Function: Support and elevation of floor of mouth, elevation of hyoid

• Innervation: Branch from anterior ramus of C1 (carried by hypoglossal nerve XII)
• Function: fixed mandible elevates and pulls hyoid bone forward; fixed hyoid pulls mandible downward and inward

• Innervation: anterior rami of C1 to C3 through ansa cervicalis
• Function: Depresses hyoid bone after swallowing

• Innervation: Ant. rami of C1-C3
• Function: Depresses and fixes hyoid bone

• Innervation: Fibers from anterior ramus of C1
• Function: Depresses hyoid bone, but when hyoid is fixed, raises larynx

• Innervation: ant. rami C1-C3
• Function: draws larynx downward

• Anterior neck right below the thyroid cartilage
• Deep to sternohyoid, sternothyroid, and omohyoid muscles
• Arterial Supply: Superior thyroid artery and inferior thyroid artery (branch of thyrocervical trunk off of the subclavian artery)
• Venous drainage: Superior thyroid vein and middle and inferior thyroid veins

• Most common thyroid pathology
• Diffuse irregular enlargement of the thyroid gland with areas of thyroid hypertrophy and colloid cyst formation

Contains: submental lymph nodes, tributaries forming anterior jugular vein

Submandibular Gland, lymph, hypoglossal nerve, mylohyoid nerve, facial artery and vein

• Tributaries to the common facial vein
• Cervical branch of facial nerve
• common carotid
• whole bunch of other shit i'm too lazy to write

Sternohyoid, omohyoid, sternothyroid, thyrohyoid, thyroid and parathyroid glands, pharynx