File:Quain's elements of anatomy (1882) (14780323645).jpg

Identifier: quainselementsof82quai02 (find matches)
Title: Quain's elements of anatomy
Year: 1882 (1880s)
Authors: Quain, Jones, 1796-1865 Thomson, Allen, 1809-1884 Sharpey-Schäfer, E. A. (Edward Albert), Sir, 1850-1935, ed Thane, George Dancer, 1850-1930
Subjects: Human anatomy Anatomy
Publisher: London : Longmans, Green
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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Text Appearing Before Image:
ected into theouter wall of the heart akli ; ihli, inner or endovascular lining of the heart; ph, ijericardialcavity ; i^us, mesoblast beyond the rudiments of the heai-t; dd, hypoblast ; (W, noto-chord ; sw, lateral wall of the developing x^harynx. into one by the union and subsequent disappearance of the adjacentparts ,of their primitive walls. In the case of the heart being thus atfirst double, each tube receives posteriorly the large entering vein, and isprolonged anteriorly into the issuing vessel or artery ; while in themedian single heart, whether formed originally so, or by later fusion oftwo tubes, the posterior part receives the two entering veins, wliile theanterior part opens into the two primitive outgoing arteries. sso TEE BLOOD-VASCULAll SYSTEM. The accompanying figures (7G8 & 7G9) from KoUiker will explain by asectional viev/ the manner in which in mammals the inflection of the twolaminas of the mcso blast gives rise to the walls of the separate components Fig. 770.
Text Appearing After Image:
Fi JO. TkAXSVEKSE section through the region OV the heart m AN EMBRYO-CHICK OF 39 HOURS. J. (From Kolliker.) m, medulla oblongata ; a, a, descending aortas ; ^)A., pharynx ; 7i, epilolast; A, thicken-ing of the same where the auditory vesicle is to be formed ; 7ip, parietal mesoblast;7izp, outer wall of the heart ; iJiA, inner wall, the cavity still divided by a sei^tuni s ;Jilb, pericardial cavity ; vhr/, ventral mesocardinm produced temporarily by the reflectionof the visceral mesoblast Ag i^ito dfp; (/, <j, vessels in the visceral niesoblast; Ent,hj^soblast. of the heart and the primary right and left compartments of the j)Pri-cardium. The endocardiac lining (ikh) is derived fiom the deej)er partof the visceral mesoblast. Pig. 771.

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