Week 2 Quiz: Laryngeal A&P

Corniculate cartilage

• Paired cartilage

• Unpaired cartilage

• Cartilage involved in voice production

• Cartilage found in the nasal cavity

Intrinsic laryngeal muscles

• 5 Paired Muscles

• 3 Unpaired Muscles

• 4 Paired Muscles

• 6 Paired Muscles

Infrahyoid muscles (don't focus on specific names for the quiz in week 2)

• Laryngeal depressors

• Sternohyoid

• Omohyoid

• Thyrohyoid

Vocal fold cover

• Epithelium + Superficial layer of the lamina propria

• Muscle layer + Deep layer of the lamina propria

• Epithelium + Intermediate layer of the lamina propria

• Submucosa + Epithelium

Myoelastic theory of voice production

• Subglottal air pressure develops until it is strong enough to separate the bottom edge of the TVFs

• Vocal fold vibration is solely dependent on neural signals from the brain

• The pitch of the voice is determined only by the length of the vocal folds

• Airflow through the vocal folds is constant and does not affect phonation

Thyroid cartilage

• Unpaired cartilage

• Paired cartilage

• Smallest cartilage of laryngeal framework

• Sits below the cricoid cartilage

Interarytenoids

• Adductors

• Abductors

• Rotators

• Flexors

Cricothyroid

• Connect the cricoid cartilage and thyroid cartilage

• Connect the arytenoid cartilage and thyroid cartilage

• Connect the cricoid cartilage and epiglottis

• Connect the thyroid cartilage and hyoid bone

Digastric (don't focus on this for the quiz in week 2)

• Laryngeal elevator

• Hyoid depressor

• Thyroid constrictor

• Cricothyroid muscle

Posterior Cricoarytenoid (PCA)

• Only abductor

• Only adductor

• Primary tensor of vocal cords

• Rotates arytenoids laterally