Overview of vocalis (fine tuner), transverse and oblique arytenoids (adductors), posterior cricoarytenoid (abductor), lateral cricoarytenoid (adductor), thyroarytenoid (relaxant), and cricothyroid (tensor) muscles.

Definition, location (C3-C6), and functions of the larynx (airway, vocal production, sphincter). The larynx consists of nine cartilages: three paired and three unpaired.

Detailed explanation of each cartilage: thyroid (largest, hyaline, Adam's apple), cricoid (ring-shaped, hyaline, only fully closed), epiglottic (leaf-shaped, elastic, sealing during swallowing), arytenoid (paired, pyramidal, hyaline), corniculate (elastic, on arytenoids), and cuneiform (elastic, in aryepiglottic folds).

Description of quadrangular membrane (forming aryepiglottic and vestibular folds), conus elasticus (forms vocal folds), and vocal ligament (thickening of conus elasticus). Also covers the false(vestibular) and true vocal folds.

Division into three parts: laryngeal vestibule, middle part (between vestibular and vocal folds), and infraglottic cavity.

All intrinsic laryngeal muscles are innervated by the vagus nerve. Specifically, the inferior laryngeal nerve innervates all muscles except the cricothyroid, which is innervated by the external laryngeal nerve. Blood supply comes from the superior and inferior laryngeal arteries.