. Human physiology. ^~P^^^^i* IT^^^^^ ^\\. ^c-- ^.,. r\ Capillaries of the Web of the Frogs Foot. 1. Deep venous trunk, composed of three principal branches, 2, 2, 2; and covered with a rete of smallervessels. Fig. 106, from Wagner, exhibits the vascular rete and circulation ofthe web of the hind foot of a frog—Rana temjporaria—magnified 110times: here the parietes are very distinct. In another figure inWagner, which represents a portion of a live newt, magnified 150diameters, the capillaries are exceedingly delicate, and their Avails byno means as distinct. The arterial and venous trunks


. Human physiology. ^~P^^^^i* IT^^^^^ ^\\. ^c-- ^.,. r\ Capillaries of the Web of the Frogs Foot. 1. Deep venous trunk, composed of three principal branches, 2, 2, 2; and covered with a rete of smallervessels. Fig. 106, from Wagner, exhibits the vascular rete and circulation ofthe web of the hind foot of a frog—Rana temjporaria—magnified 110times: here the parietes are very distinct. In another figure inWagner, which represents a portion of a live newt, magnified 150diameters, the capillaries are exceedingly delicate, and their Avails byno means as distinct. The arterial and venous trunks and the capil-laries that form the medium of communication between them are wellseen, as well as the islets of the substance of the lung, in which agranular or areolar texture is indistinctly perceptible. Dr. Carpenter^is of opinion, that the mode of origin of the capillaries refutes thesupposition, that they are mere passages channeled out of the tissuesthrough which they convey the blood. lie thinks there can be nodoubt, that they a


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Keywords: ., bookauthordungliso, bookcentury1800, bookdecade1850, bookyear1856