LARYNX INTRODUCTION EXTENT SIZE CARTILAGES MUSCLES CAVITY MOVEMENTS

EXTENT & SIZE • • • EPIGLOTTIS TO CRICOID CARTILAGE. LIES OPPOSITE C 3

CARTILAGES • • • THYROID. CRICOID. EPIGLOTTIS. ARYTENOID. CORNICULATE. CUNEIFORM.

JOINTS • CRICOTHYROID JOINT. • CRICOARYTENOID JOINT.

LIGAMENTS • • VOCAL LIGAMENT. VESTIBULAR LIGAMENT. CRICOTHYROID LIGAMENT. CRICOVOCAL MEMBRANE. HYOEPIGLOTTIC LIGAMENT. THYROHYOID

MUSCLES • • • POSTERIOR CRICO ARYTENOID. TRANSVERSE ARYTENOID. OBLIQUE ARYTENOID. LATERAL CRICO ARYTENOID.

CAVITY • • • INLET, ARYEPIGLOTTIC FOLD. VESTIBULE, QUADRATE MEMBRANE. RIMA VESTIBULI/ VESTIBULAR FOLDS.

MOVEMENTS • • • ABDUCTION. ADDUCTION. LENGTHENING. SHORTENING. FUNCTIONS – RIMA VESTIBULI. RIMA GLOTTIDIS.

BLOOD & NERVE SUPPLY • SUPERIOR & INFERIOR LARYNGEAL VESSELS. • SUPERIOR & RECURRENT

APPLIED ANATOMY • INJURY TO RECURRENT LARYNGEAL NERVE. • INJURY TO INTERNAL LARYNGEAL NERVE.

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LARYNX INTRODUCTION EXTENT & SIZE CARTILAGES MUSCLES CAVITY MOVEMENTS BLOOD & NERVE SUPPLY APPLIED ANATOMY

INTRODUCTION

EXTENT & SIZE • • • EPIGLOTTIS TO CRICOID CARTILAGE. LIES OPPOSITE C 3 TO C 6 VERTEBRA. IN CHILDREN C 1 TO C 4 VERTEBRA. SIZE – VERTICAL 44/36 mm. TRANSVERSE 43/41 mm. AP 36/26 mm.

EXTENT

CARTILAGES • • • THYROID. CRICOID. EPIGLOTTIS. ARYTENOID. CORNICULATE. CUNEIFORM.

THYROID & CRICOID

THYROID CARTILAGE

ADAM’S APPLE

CRICOID CARTILAGE

EPIGLOTTIS

ARYTENOID CARTILAGES

CUNEIFORMS & CORNICULATES

JOINTS • CRICOTHYROID JOINT. • CRICOARYTENOID JOINT.

LIGAMENTS • • VOCAL LIGAMENT. VESTIBULAR LIGAMENT. CRICOTHYROID LIGAMENT. CRICOVOCAL MEMBRANE. HYOEPIGLOTTIC LIGAMENT. THYROHYOID MEMBRANE. QUADRATE MEMBRANE. CRICOTRACHEAL LIGAMENT.

LIGAMENTS

MUSCLES • • • POSTERIOR CRICO ARYTENOID. TRANSVERSE ARYTENOID. OBLIQUE ARYTENOID. LATERAL CRICO ARYTENOID. THYRO ARYTENOID. VOCALIS. CRICOTHYROID. ARY EPIGLOTTICUS. THYROEPIGLOTTICUS.

MUSCLES

CAVITY • • • INLET, ARYEPIGLOTTIC FOLD. VESTIBULE, QUADRATE MEMBRANE. RIMA VESTIBULI/ VESTIBULAR FOLDS. LARYNGEAL SINUS, SACCULE. RIMA GLOTTIDIS/ VOCAL FOLDS. INFRA GLOTTIC PART, CRICOVOCAL MEMBRANE. • MUCUS MEMBRANE.

CAVITY

INLET

CAVITY

MOVEMENTS • • • ABDUCTION. ADDUCTION. LENGTHENING. SHORTENING. FUNCTIONS – RIMA VESTIBULI. RIMA GLOTTIDIS.

MOVEMENTS

BLOOD & NERVE SUPPLY • SUPERIOR & INFERIOR LARYNGEAL VESSELS. • SUPERIOR & RECURRENT LARYNGEAL NERVES. • LYMPHATICS- PRELARYNGEAL, PRE & PARA TRACHEAL NODES

ARTERIAL SUPPLY

VENOUS DRAINAGE

NERVE SUPPLY

LYMPHATICS

APPLIED ANATOMY • INJURY TO RECURRENT LARYNGEAL NERVE. • INJURY TO INTERNAL LARYNGEAL NERVE. • INJURY TO BOTH NERVES. • SEMON’S LAW.