. Anatomical technology as applied to the domestic cat; an introduction to human, veterinary, and comparative anatomy. Cats; Dissection; Mammals. TRANSECTION OF THE AURICLES. 335 dices projecting on either side of tlie aorta and pulmonary artery. Of these two vessels, the former is seen to be nearly in Hue with the auricular septum, while the latter, at this level, is ventro-sinistrad of it. The of the length of the septum aunculare should have been thinned to indicate the positioD of the fossa ovalia (§ 868). In the left auricle the two ends of the line which is interrupted by the abb
. Anatomical technology as applied to the domestic cat; an introduction to human, veterinary, and comparative anatomy. Cats; Dissection; Mammals. TRANSECTION OF THE AURICLES. 335 dices projecting on either side of tlie aorta and pulmonary artery. Of these two vessels, the former is seen to be nearly in Hue with the auricular septum, while the latter, at this level, is ventro-sinistrad of it. The of the length of the septum aunculare should have been thinned to indicate the positioD of the fossa ovalia (§ 868). In the left auricle the two ends of the line which is interrupted by the abbreviation VV. point respectively to the positions of the dextral and sinistral sinuses of the pulmonary veins (§ 888); the third or intermediate sinus is overhung by the auricular septum, and its position is indi- cated approximately by the s of the word septum. A little of the complete wall of the postcava remains, but the place of attachment of the prsecava is indicated only by an unshaded area. § 895. Fig. 96^The Auricles and Auriculo-ventricular Orifices seen from the. FiQ. 6.—Teansection of the Aukicles, Cephalic Aspect; Cephalic Aspect.—In addition to the features in common with Fig. 95, this figure illus- trates the following points :— (A) The relative positions of the three semilunar valves of the pulmonary artery, namely, ventral, dextral and sinistral. (B) The fact that the aortic valves are upon a lower (more caudal) level than the pul- monary, the former, indeed, not distinctly appearing unless the preparation is so held as to admit the light directly into the vessel (§ 866). The auriculo-ventricular valves are not especially well shown, but the form of the two unshaded areas indicates, approximately, the fact that of the two bicuspides (§ 881), one is lateral and the other septal, while of the three tricuspides (§ 884), one is septal and the others respectively dorsal and ventral (more strictly dorso-lateral and ventro-lateral). In the right auric
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Keywords: ., bookcentury1800, bookd, booksubjectdissection, booksubjectmammals
