Physiology of Respiration
The name for various combinations of volumes
Capacities
This is the only bone of the laryngeal system
Hyoid bone
This connects the epiglottis and hyoid bone
Hyoepiglottic ligament
This cranial nerve innervates all intrinsic laryngeal muscles
CN X - Vagus nerve
This muscle has both a posterior and anterior belly, and serves as a laryngeal/hyoid elevator.
Digastricus (posterior / anterior)
If you add all of your volumes together you get this capacity (IRV + ERV + TV + RV = ?)
Total Lung Capacity (TLC)
These are the three unpaired cartilages of the larynx
Epiglottis, Cricoid, Thyroid
This membrane connects the hyoid bone and thyroid cartilage
Thyrohyoid membrane
The Lateral Cricoarytenoid, Oblique Arytenoid and Transverse Arytenoid all serve this purpose
Vocal fold adduction
This muscle connects your thyroid cartilage and sternum, and serves as a laryngeal/hyoid depressor
Sternothyroid
The amount of air you could still breathe in after a normal tidal inspiration.
Inspiratory Reserve Volume (IRV)
These two small cartilages rest on the superior posterior portion of the cricoid cartilage
Arytenoid cartilages
This large membrane connects the arytenoids, epiglottis and thyroid cartilage, and its upper boundary is the aryepiglottic fold
Quadrangular membrane
This muscle acts as either a tensor or relaxer and can be split into two portions
Thyroarytenoid (split into thyrovocalis & thyromuscularis)
This muscle connects the internal lateral surface of your jaw to your hyoid bone, and act as a laryngeal/hyoid elevator
Mylohyoid
This capacity includes Inspiratory Reserve Volume, Expiratory Reserve Volume and Tidal Volume
(IRV + ERV + TV = ?)
Vital Capacity
These two small cartilages provide structure to the aryepiglottic fold
Cuneiform Cartilages
These connect the sides of the hyoid bone and thyroid cartilage
Lateral thyrohyoid ligaments
This is the only muscle responsible for abducting the vocal folds
Posterior cricoarytenoid
This muscle connects the base/body of the tongue and your chin and can act as a hyoid/laryngeal elevator
Genioglossus
This capacity measures all the amount of air left in your respiratory system after a typical tidal expiration
Functional Residual Capacity
These two small cartilages sit directly superior to the arytenoid cartilages
Corniculate cartilages
This connects the cricoid cartilage and the first ring of your tracheal cartilage
Cricotracheal ligament
This muscle has two heads and serves to tense the vocal folds by rocking the thyroid cartilage forward and down
Cricothyroid (pars recta & pars oblique)
This muscle connects your scapulae and your hyoid bone, and acts as a laryngeal/hyoid depressor.
Omohyoid