Term
|
Definition
phonation: vibration of TVCs for voice production
respiration: adjustment of glottic aperature according to need
swallowing: protects the upper airway |
|
|
Term
| laryngeal prominence (Adam's apple) made of anterior union of two laminae of |
|
Definition
|
|
Term
| signet ring shaped cartilage with arch anteriorly & lamina posteriorly |
|
Definition
|
|
Term
| only portion of larynx & trachea that forms a *complete ring around airway |
|
Definition
|
|
Term
| pyramid-shaped cartilage; has a vocal process and a muscular process |
|
Definition
|
|
Term
| ligament extending from thyroid cartilage to vocal process of arytenoid cartilage; directly involved in *voice production & *respiratory protection |
|
Definition
|
|
Term
| these M.s attach to muscular processes of arytenoid cartilage (2) |
|
Definition
|
|
Term
| this contains numerous perforations, serving very little barrier to diseases; opens & closes to allow food down esophagus or air through trachea |
|
Definition
|
|
Term
| space found superior to epiglottis; AKA: "little ditch" |
|
Definition
|
|
Term
| nonfunctional cartilage found atop arytenoid cartilage |
|
Definition
|
|
Term
| synovial joint found between cricoid & *arytenoid cartilages; allows rotation & gliding of arytenoid cartilage |
|
Definition
|
|
Term
| synovial joint found between cricoid & *thyroid cartilages; allows rotation & gliding movements |
|
Definition
|
|
Term
| membrane connecting thyroid cartilage to hyoid bone |
|
Definition
|
|
Term
| membrane located in upper half of larynx that bridges gap between lateral borders of arytenoid & epiglottic cartilages |
|
Definition
|
|
Term
| superior border of quadrangular membrane is free and forms this structure |
|
Definition
|
|
Term
| inferior limit of quadrangular membrane is a weak vestibular ligament supporting this structure |
|
Definition
| vestibular fold (FVC/false vocal fold) |
|
|
Term
| structure located in lower half of larynx which runs from cricoid cartilage to vocal ligament, forming an elastic cone |
|
Definition
|
|
Term
| space found on interior/cavity of larynx: located between inlet & FVCs |
|
Definition
|
|
Term
| space found on interior/cavity of larynx: deep spindle recess between FVCs & TVCs |
|
Definition
|
|
Term
| space found on interior/cavity of larynx: rims glottidis (space between VCs) + vocal folds |
|
Definition
|
|
Term
| space found on interior/cavity of larynx: located below TVCs and lower border of cricoid cartilage |
|
Definition
|
|
Term
| MOST of laryngeal M.s are innervated by this branch of vagus N. (CN X) |
|
Definition
|
|
Term
laryngeal M. which is NOT innervated by recurrent laryngeal N.;
Action: draws arch of cricoid *posteriorly & *superiorly resulting in *tightening & *elongating of VCs;
**PRIMARY TENSOR of TVCs; responsible for ability to reach **HIGH notes |
|
Definition
|
|
Term
| cricothyroid M.: innervation |
|
Definition
| external laryngeal N. (branch of vagus N. (CN X)) |
|
|
Term
| extrinsic laryngeal M. group: suprahyoid M.s (4) |
|
Definition
| stylohyoid digastric mylohyoid geniohyoid |
|
|
Term
| extrinsic laryngeal M. group: suprahyoid M.s - function |
|
Definition
| elevate hyoid bone & larynx |
|
|
Term
| extrinsic laryngeal M. group: infrahyoid M.s - function |
|
Definition
| depress hyoid bone & larynx |
|
|
Term
| extrinsic laryngeal M. group: infrahyoid M.s (3) |
|
Definition
| omohyoid sternohyoid sternothyroid |
|
|
Term
M. originating from cricoid cartilage & inserting onto *muscular process of arytenoid cartilage;
contraction causes muscular process to rotate *anteriorly & *laterally leading to **ADduction of glottis |
|
Definition
| lateral cricoarytenoid M. |
|
|
Term
M. originating from cricoid cartilage & inserting onto *muscular process of arytenoid cartilage;
contraction causes muscular process to rotate *posteriorly, *medially, & *downward leading to **ABduction of glottis;
**THIS IS THE ONLY ABductor OF GLOTTIS |
|
Definition
| posterior cricoarytenoid M. |
|
|
Term
| this M. is the ONLY unpaired M. of the laryngeal M.s; stretches between posterior surfaces of two arytenoid cartilages; contracts to close posterior commissure of arytenoid cartilages (*ADduction) |
|
Definition
| transverse and oblique arytenoid M.s |
|
|
Term
| M.s which pull epiglottis backward (posterior) when they contract |
|
Definition
|
|
Term
| M.s which pull epiglottis forward (anterior) when they contract |
|
Definition
|
|
Term
| M.s which pull arytenoid cartilage anteriorly (toward thyroid cartilage), resulting in *decreased tension on the vocal cords |
|
Definition
|
|
Term
| M.s which originate from inner aspect of thyroid cartilage & insert *into vocal ligament; contraction allows for minute changes in specific areas of vocal folds |
|
Definition
|
|
Term
| superior A. supply to larynx is from this A., which is a branch off of superior thyroid A. (of external carotid A.) |
|
Definition
|
|
Term
| inferior A. supply to larynx is from this A., which is a branch off of inferior thyroid A. (branch of thyrocervical trunk of subclavian A.) |
|
Definition
|
|
Term
| lymphatic drainage is divided by these structures |
|
Definition
|
|
Term
| these laryngeal lymphatics drain through floor of *piriform recess, to ultimately gain access to the deep cervical nodes |
|
Definition
| superior (supraglottic) lymphatics |
|
|
Term
| these laryngeal lymphatics drain into *pre-tracheal nodes (in front of/anterior to trachea) and into *paratracheal nodes (lateral to trachea), to ultimately gain access to deep cervical nodes |
|
Definition
| inferior (infraglottic) lymphatics |
|
|
Term
| superior laryngeal N. gives off these branches (2) |
|
Definition
| external laryngeal N. internal laryngeal N. |
|
|
Term
| motor innervation to cricothyroid M. is via this N. |
|
Definition
|
|
Term
| sensory innervation ABOVE TVCs is via this N. |
|
Definition
|
|
Term
| motor innervation to ALL laryngeal M.s EXCEPT cricothyroid is via this N. |
|
Definition
|
|
Term
| sensory innervation BELOW TVCs is via this N. |
|
Definition
|
|
