. Anatomy of the cat. Cats; Mammals. RllSriRATORY ORGANS. 247 and widened by the action of muscles. The vocal cords, which bound it, are set vibrating by currents of air transmitted from the lungs, and the voice-sounds are thus produced. The caudal portion (inferior portion) of the laryngeal cavity is that between the glottis and the hrst tracheal cartilage. It is narrowed near the glottis. Cartilages of the Larynx (Fig. 104).—There are three unpaired cartilages, the thyroid (1), cricoid (3), and epiglottic (2), and two paired cartilages, the arytenoids (4). The thyroid cartilage (cartilage th
. Anatomy of the cat. Cats; Mammals. RllSriRATORY ORGANS. 247 and widened by the action of muscles. The vocal cords, which bound it, are set vibrating by currents of air transmitted from the lungs, and the voice-sounds are thus produced. The caudal portion (inferior portion) of the laryngeal cavity is that between the glottis and the hrst tracheal cartilage. It is narrowed near the glottis. Cartilages of the Larynx (Fig. 104).—There are three unpaired cartilages, the thyroid (1), cricoid (3), and epiglottic (2), and two paired cartilages, the arytenoids (4). The thyroid cartilage (cartilage thyreoidea) (1) has nearly the form of a visor of a cap, but is relatively broader at its ends than a cap visor. It forms about two-thirds the circumference of a circle, and is so situated that it embraces the other carti-. FiG. 104.— ok Larynx, with Shie View of Hyoid Bone. /', ceratohyal; r, cpihyal; d, stylohyal; e, tympanohyal; /, thyrohyal. I, thyroid cartilage; 2, epiglottis; 3, cricoid cartilage; 4, arytenoid cartilage; 5, cricothyroid ligament; 6, thyrohyoid ligament; 7, trachea. lages ventrally and laterally. Its caudal and cranial borders are oblique to its caudocranial axis and are directed dorso- caudad. To the middle of the cranial border is attached the epiglottic cartilage (2), and the whole cranial margin is con- nected by membrane (6) to the body and caudal cornua (/) of the hyoid bone. The dorsal border projects craniad into a considerable cornu which is attached to the free end of the caudal hyoid cornu (/"). The border also projects caudad into a process which articulates with a facet on the lateral surface of the cricoid cartilage (3). In the middle of the dorsal surface. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Reighard, Jacob Ellsworth, 1861-1942; Jennings, H.
Size: 1741px × 1435px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollect, booksubjectcats, booksubjectmammals
