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  • Title: Intermediary spleen microvasculature in canis familiaris- morphological evidences of a closed and open type.
    Author: Alexandre-Pires G, Pais D, Esperança Pina JA.
    Journal: Anat Histol Embryol; 2003 Oct; 32(5):263-70. PubMed ID: 12969025.
    Abstract:
    Numerous studies have been made regarding circulation via the red pulp of the spleen, and intense controversy surrounds the question as to whether or not endothelial continuity exists between arterial and venous vessels. Aware of this intense controversy, and in order to perform investigation over the spleen of dogs infected with a parasitic disease (future reports shall be done), the authors studied the vascularization of the normal dog spleen in order to define its normal pattern and evaluate the eventual changes of the circulation pattern under the parasitic condition. These studies led us to report, unequivocally, using complementary vascular replective techniques, that the normal dog's intermediary circulation is morphologically closed and of the open kind also. These findings are contrary to the thesis that defends the existence of a physiologically closed and morphologically open circulation in the dog spleen. Lymphatic vessels in the spleen of the dog are also demonstrated.
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