SLP 542: WEEK 2

Thyroid Cartilage

Largest cartilage of laryngeal framework

Sits on top of cricoid cartilage

Has ability to rock forward and down

Which cartilage houses the true vocal folds

Thyroid cartilage

Where do the true vocal folds attach on the thyroid cartilage?

Laryngeal Prominence

Cricoid Cartilage

Unpaired cartilage that forms interior base of larynx

Shaped like a signet ring with a broad posterior face

Which cartilage attaches to thyroid cartilage at the inferior horn

Cricoid cartilage

Which cartilage attaches to the first tracheal ring via cricotracheal ligament

Cricoid cartilage

Arytenoid Cartilage

Paired cartilages

Rotate inward/medially ~ 30 degrees for TVF to adduct and laterally to resting position for TVF to abduct

Arytenoid Cartilage attachment points

Vocal Process: posterior attachment

Muscular Process: posterior attachment of the lateral cricoarytenoid and posterior cricoarytenoid muscles

Lateral cricoarytenoid muscles

Adductor

Posterior cricoarytenoid

abductor

What cartilage connects to the cricoid cartilage via cricoarytenoid joint

Arytenoid cartilage

Corniculate cartilage

paired cartilage

Serve no role in voice production

Sits on top of the arytenoid

Cuneiform Cartilage

Paired cartilages that sit on top of corniculates

Serve no role in voice production

What cartilage provides support to arypiglottic fold

Cunieform cartilage:

forms the rim of the laryngeal vestibule

Epiglottis

Superior part of larynx

Leaf Shaped; elastic cartilage

provides glottic closure during swallowing

no significant role in voice