1214 



THE RESPIRATORY SYSTEM 



The crico-arytaenoid articulation [articulatio cricoarytaenoidea (figs. 973, 977, 

 978). — The articular surface of the cricoid cartilage and the articular surface 

 of the arytaenoid which enter into this articulation are so disposed that at no time 

 do they meet in complete apposition. A loose capsule [capsula articularis crico- 



FiG. 977. — The Laryngeal Skeleton seen from Behind. (Poirier and Charpy.) 



Epiglottic cartilage 



-. — Greater cornu of hyoid 

 Triticeous cartilage 



Hyo-thyreoid membrane 



Posterior crico-arytaenoid 



ligament 



Inferior cornu of thyreoid — 



Lamina of cricoid — 



Membranous wall of trachea- 



"Body of hyoid 



-Superior cornu of thyreoid 



"Thyreo-epigottic ligament 



"Corniculate cartilage 



Corniculo- and crico-pharyn- 



geal ligaments 

 Arytaenoid cartilage 



— Crico-arytaenoid joint 



■Posterior cerato-cricoid 

 ligament 

 Crico-thyreoid joint 



Lateral cerato-cricoid ligament 



Fig. 978. — The Lartnx with its Ligaments, viewed from the Right. (The right lamina of 

 the thjTeoid cartilage has been removed.) (Spalteholz.) 



Hyo-epiglottic ligament 



Body of hyoid 



w, — Median hyo-thyreoid ligament 

 —Quadrangular membrane 



Thyreoid cartilage 



— Ventricular ligament 

 » ■Vocal ligament 



Elastic cone 



Median crico-thyreoid ligament 



I — Arch of cricoid 



Arytaenoid cartilage- 

 Muscular process 



Crico-arytaenoid joint 



Vocal process ^Kf 



Theyreoid articular surface-^ 

 Tracheal cartilages 



— Crico-tracheal ligament 

 Annular ligament 



arytaenoidea] of fibrous and synovial strata attached around the edges of the joint 

 surfaces unites the cartilages. 



Posterior crico-arytaenoid ligament [lig. cric(Kiryta;noidcum postcrius], attached above, to 

 the medial surface of the base and muscular process of the arytajnoid, and below to the lamina 



