When discussing laryngeal anatomy, which cranial nerve is our main focus?
What is the vagus nerve (CNX)?
This muscle, the only vocal fold abductor, shares initials with the center fielder for the Chicago Cubs
What is the posterior cricoarytenoid (PCA)?
The vocal folds do not reach their adulthood amount of 5 vocal fold layers until this age
What is 12-13 years old?
The main purpose of breathing is to bring this item into the body, then remove this item from the body
What are oxygen and carbon dioxide (CO2)?
Lauren indicated that these 3 items are the foundation and requirements for all voice treatment
What are respiration, phonation, and resonance?
This nerve descends from the brain stem inferiorly to the subclavian artery before looping back toward its target of the larynx
What is the R recurrent laryngeal nerve (RLN)?
The lateral cricoarytenoid (LCA) is the primary vocal fold adductor muscle, bringing the vocal folds together by performing this action on the arytenoid cartilage
What is rotation?
In the later years of life, this phenomenon leads to thinning and increased stiffness of the true vocal folds
What is vocal fold atrophy?
This structure is directly posterior to the trachea, actually sharing a wall with it
What is the esophagus?
This action has an inhale to exhale ratio of 10:90
What is speech?
The TA, LCA, IA, and PCA are all innervated by the motor branch of this nerve
What is the recurrent laryngeal nerve (RLN)?
These extrinsic laryngeal muscles are most important for hyolaryngeal elevation
What are the suprahyoids?
This hormone leads to a 63% increase in vocal fold length for AMAB during puberty
What is testosterone?
This muscle is an accessory for phonation with the main purpose being head rotation
This term refers to the vocal folds continuing to vibrate independently via vocal fold adduction, elastic recoil, and airflow
What is self-sustaining oscillation?
This specific branch of the 10th cranial nerve provides sensation above the true vocal folds
What is the internal branch of the superior laryngeal nerve (ISLN)?
This adductor muscle is the core of the true vocal fold
What is the thyroarytenoid (TA)?
In mid-life, changes with these hormones influence both males and females
What are androgens?
The purpose of this region is to either improve or diminish resonance via enhancing or constricting vibration created at the vocal folds
What is the vocal tract?
In a pitch glide from high to low, these two muscles pass off the responsibility of lengthening the true vocal folds
What are the thyroarytenoid (TA) and cricothyroid (CT) muscles?
The external branch of the superior laryngeal nerve (ESLN) innervates the muscle that has this specific function
What is high pitch phonation?
The interarytenoid (IA) muscle is responsible for gliding together this portion of the true vocal folds
What is the posterior larynx?
With regard to laryngeal fetal development, vocalization-like behaviors are random until this age
What is 24 weeks gestation?
This muscle flattens when contracted, allowing the thoracic cavity to expand into the abdominal cavity
What is the diaphragm?
Alongside vocal fold adduction, this type of air pressure is required in the first step of Van den Berg's Aerodynamic-Myoelastic Theory
What is subglottic air pressure?