Anatomy and Physiology of the Larynx. 



89 



Fig. 5.— diagram of a transverse section of the larynx of a 

 medium-sized horse, through the thyroid, cricoid, and 



ARYTiENOID CARTILAGES AND VENTRICLES, IMMEDIATELY ABOVE 

 THE VOCAL CORDS, WITH THE MEASUREMENTS OF THESE PARTS. 



A, Front of larynx, or Pomiim Adami of thyroid cartilage. B, 

 Posterior part of larynx. C, Pars vocales. D, Pars resjnratoria. 1, 

 Thyroid cartilage. 2, 3, Left and right arytsenoid cartilages. 4, Bezel 

 of cricoid cartilage. 5 5, Vocal cords— each 1^ to If inch long, by 

 ^ inch at widest part. 6 6, Morgagni's ventricles— from dotted line 

 1 inch long by ^ inch wide. 7 7, Insertion of vocal cords into ary- 

 tsenoid cartilages, 8, Width of glottis between the latter points f inch. 

 9, Width between the arytajnoid cartilages at their posterior part 

 I inch. 10 10, Length of each arytsenoid cartilage U inch, thickness 

 ^3g. inch. 11 11, Entire length of glottis 3f inches. 12, Length (trans- 

 verse) of cricoid cartilage 2 inches, thickness ^^. 13, Length of thyroid 

 cartilage each side 4^ thickness ^ inch. 14 14, Distance between each 

 wing of the thyroid" cartilage 3 inches. 15, Mucous membrane lining 

 the cricoid cartilage. 1616161 6, Muscles and connective tissue. 



