Larynx
- Larynx: The larynx extends from the laryngopharynx to the trachea and protects the airway and produces voice. This relationship is an important landmark for clinical anatomy.
- Thyroid cartilage: Thyroid cartilage forms the laryngeal prominence. Cricoid cartilage forms a complete ring. Epiglottis covers the inlet during swallowing. Arytenoid cartilages anchor vocal ligaments and muscles. Its mechanical role contributes to controlled movement and structural support.
- Larynx: The thyrohyoid membrane connects larynx to hyoid. The cricothyroid ligament connects thyroid and cricoid cartilages. Its mechanical role contributes to controlled movement and structural support.
- Vocal ligaments form the: Vocal ligaments form the vocal folds. Vestibular ligaments form vestibular folds. This relationship is an important landmark for clinical anatomy.
- Larynx: The vestibule lies above vocal folds, the ventricle lies between vocal and vestibular folds, and the infraglottic cavity lies below vocal folds. This relationship is an important landmark for clinical anatomy.
- The laryngeal cartilages form the framework, laryngeal ligaments help connect and support the framework, and the vocal folds control the airway opening and voice production.
- Larynx: The rima glottidis is the opening between vocal folds and arytenoid cartilages. Its mechanical role contributes to controlled movement and structural support.
- Intrinsic laryngeal muscles adjust vocal-fold tension: Intrinsic laryngeal muscles adjust vocal-fold tension and glottic width. Posterior cricoarytenoid abducts vocal folds and is the only muscle that opens the airway. Its mechanical role contributes to controlled movement and structural support.
- Recurrent laryngeal nerve: Recurrent laryngeal nerve supplies all intrinsic laryngeal muscles except cricothyroid, which is supplied by the external laryngeal nerve. This relationship helps localize neurologic deficits after injury.
- Larynx: The superior laryngeal nerve supplies sensation above the vocal folds; recurrent laryngeal nerve supplies sensation below them. This relationship helps localize neurologic deficits after injury.
- The recurrent laryngeal nerve supplies most intrinsic laryngeal muscles and sensation below the vocal folds, while the external laryngeal nerve supplies cricothyroid and the internal laryngeal nerve carries sensation above the vocal folds.
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