𝙳𝙴𝙽𝚃𝙰𝙻 𝚂𝚃𝚄𝙳𝚈 𝙽𝙾𝚃𝙴𝚂.𝟻

Larynx 9 cartilages: 🔸Thyroid (1) 🔶epiglottic (1) 🔶cricoid (1) 🔶arytenoid (2) 🔶corniculate (2) 🔶cuneiform (2) 🔺Hyaline: Cricoid cartilage, thyroid cartilage 🔺Elastic: Epiglottis Membranes and ligaments: - thyrohyoid membrane - median thyrohyoid ligament - lateral thyrohyoid ligament - cricotracheal ligament - quadrangular membrane - cricothyroid membrane Muscles of the Larynx: Divided into extrinsic and intrinsic. Extrinsic = elevators & depressors. 🔹Elevators 🔶suprahyoid muscles: - digastric - stylohyoid - mylohyoid - geniohyoid 🔶longitudinal muscles of pharynx: - stylopharyngeus - salpingopharyngeus - palatopharyngeus 🔹Depressors 🔸infrahyoid muscles: - sternohyoid - sternothyroid - omohyoid Intrinsic = muscles controlling the laryngeal inlet & muscles controlling the movements of the vocal cords. 🔹Controlling laryngeal inlet - oblique arytenoid - aryepiglottic muscle 🔹Increasing length and tension of vocal cords - cricothyroid muscle 🔹Decreasing length and tension of vocal cords - thyroarytenoid (vocalis) muscle