The bronchi and pulmonary blood-vessels : their anatomy and nomenclature, with a criticism of Professor Aeby's view on the bronchial tree of mammalia and of man / by William Ewart.
- William Ewart
- Date:
- 1889
Licence: Public Domain Mark
Credit: The bronchi and pulmonary blood-vessels : their anatomy and nomenclature, with a criticism of Professor Aeby's view on the bronchial tree of mammalia and of man / by William Ewart. Source: Wellcome Collection.
Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.
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![Riglit Superficial Mid-dorsal List rib id ion. The two divisions from tlie superficial horizontal are at right angles to Horizontal \ each other, one being vertical, the other horizontal and transverse. Both (>'t3ppe> these directions are also perpendicular upon the sagittal direction of the ^^',-11^^' ) parent trunk. ^I'hey are brought about by means of tlie rectangular curve mid-dorsal exhibited by each of tlie bronchi in ciuestion at its origin. The Twrizontal '^'l^^'^-'' ^ 7 7 1 T -1 1 , ^ -IT HorizoutaO vnd-dorsal trunk distributes branches to the upper part of the imd-dorsal mid-dorsal district; the vertical dcsrcnding raid-dorsal, to the lower part. \^^rtR-'ar The Horizontal Mid-dorsal Trunk, after a brief course of 6 mm., ■^scfiuUiig; mid-aorsal gives oft'by bifurcation tJie rcrtical ascendiiir/ mid-dorsal, for the supply of the (vj.dppes).^ posterior upper fringfe of the lower lobe ; and continuinjj liorizoiitallv outwards interiobav 7. 1-^ • ' T 7 1 1 1- 1 ,1 bvaiiclKvij, for 2*5 cm., biturcates into an upper ana a tower branch which supply the dppnaj. upper half of the middle third of the posterior axillary region (the lower fuia'dorg;!! half being supplied by a posterior branch from the mid-axillary horizontal), ^p^jg^.^j The Vertical Ascending Mid-dorsal gives up, by bifurcating almost [jppei- immediatelv, a Mid-dorsal Interlobar Bronchus. A short distance ^'laucii. -I • Tin lj0'\vor further down £ris:'S from the same trunk, upwards and outwards, the branch. Ascending Oblique Dorsal, which supplies the outer part of the posterior- Mid-dorsai\ • • m- 1 • T •! T 1 -!• •! • intrniobar upper innge. Imally the vertical ascending mid-dorsal divides mto two ter- (vij. dppesa). Vertical minal lateral branches, provided with branclilets, for the respective supply of the anterior and of the posterior aspect of the thin pulmonary edge. dorsai'(vij A similar interlobar hrancli also arises from the horizontal mid-dorsal dpposs). . bronchus prior to its final bifurcation. (^Hq'i'e' The Vertical Descending Mid-dorsal does not exceed 6 mm. in dorsal (viij. length. It presents considerable analogy with the vertical ascending mid-dorsal. Vertfca? ) It bifurcates into a small anterior branch, the Deep Descending Mid- mid-.. ^ dorsal (viij. dorsal, which approaches the posterior aspect of the lower lobar bronchus, dppcsss). and into the Superficial Descending Mid-dorsal, in continnation of the v< iticai dc- original direction. The latter divides into a small Mid-dorsal Vertebral mi.i-.ioi^ai Marginal, of T shape, and into the Mid-dorsal Oblique. This branch y),''^1',;'^;';^^^^ curves downwards and outwards and bears small superficial branches at a deaceudiu.- distance of 2-3 cm. below the horizontal mid-dorsal. (vfrip°HWj .'Jeep- ... descg. mid The dorsal part of the posterior-horizontal distribution is much more dorsal (vj. restricted than in the left lung. It does not extend upwards as high as the ''w^'^'')- 1 . '~ Mid-dorsal level 01 the u]:)per lobar bronchus, and inieriorly it is curtailed owing to the inner mar- powerful development of the lesser horizontal mid-dorsal, a branch which, in dpp^^^u)'''' the left luno', is of insimificant size. Mid-dorsal 0^0 . oblique (vij. dppdde).](https://iiif.wellcomecollection.org/image/b21518701_0177.jp2/full/800%2C/0/default.jpg)
