| 释义 |
Jacobson|ˈdʒeɪkəbsən|
The name of Ludwig Levin Jacobson (1783–1843), Danish anatomist and physician, used in the possessive or with of-adjunct to designate structures investigated by him, as Jacobson's nerve, the tympanic nerve, a branch of the glosso-pharyngeal (ninth cranial) nerve; Jacobson's organ, an organ which is only vestigial in adult man but is a well-developed olfactory organ in many vertebrates, notably snakes and lizards, occurring as (one of) a pair of sacs or tubes in communication with the mouth (or in some cases the nose).
1836–9R. B. Todd Cycl. Anat. & Physiol. II. 495/2 The most important of these is a small branch which proceeds from the ganglion into the tympanum (ramus tympanicus nervi glosso-pharyngei; nerve of Jacobson). 1860Gray Anat. (ed. 2) 524 The tympanic branch (Jacobson's nerve), arises from the petrous ganglion. 1871T. H. Huxley Man. Anat. Vertebrated Animals ii. 72 In the latter case they are the canals of Stenson... Glandular diverticula of the mucous membrane, supplied with nervous filaments from both the olfactory and the fifth pair, may open into these canals. They are called..the ‘organs of Jacobson’. 1888Rolleston & Jackson Anim. Life 346 A portion of the nasal cavity becomes separated off from the nose proper. It is known as Jacobson's organ, and is supplied by the fifth nerve as well as by the olfactory. 1888W. R. Gowers Man. Dis. Nervous Syst. II. 212 The gangliform enlargement also receives a twig from the nerve (small petrosal) which connects the otic ganglion, through the nerve of Jacobson, with the glosso-pharyngeal. 1896Kirkaldy & Pollard tr. Boas's Text Bk. Zool. 333 In some Reptiles and most Mammals, there is a peculiar saccular or tubular paired organ, Jacobson's organ, in close connection with the olfactory apparatus. 1951C. K. Weichert Anat. Chordates vi. 254 Although the function of Jacobson's organ is obscure, it is believed to aid in the recognition of food, since it is best developed in animals which hold food in their mouths. 1954T. L. Peele Neuroanat. Basis Clin. Neurol. ix. 217/2 By way of the tympanic branch of the glossopharyngeal (Jacobson's nerve) sensory fibers are supplied to the medial surface of the ear drum, to the tympanic cavity, to the eustachian tube in part, and to mastoid cells. 1965R. & D. Morris Men & Snakes viii. 195 Snakes, like lizards, possess a..Jacobsen's [sic] Organ. This is a scent-sensitive pair of pits lying in the roof of the mouth.
Hence † Jacobˈsonian a. (obs.).
1878A. Macalister Introd. Syst. Zool. & Morphol. Vertebr. Animals iii. 16 In connexion with this 5th pair [of nerves] there may be six separate ganglia:..5th, Cloquet's, on the Jacobsonian organ. 1893Gunn & Hensman in H. Morris Treat. Human Anat. vii. 928 In the septal cartilage above the opening of Stenson's canal there is a small pouch which presents a minute opening below. This is the representative of the Jacobsonian organ. A strip of cartilage underneath this..is known as the Jacobsonian cartilage. |