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Common Carotid Artery Bifurcation Levels Related to Clinical Relevant Anatomical Landmarks International Journal of Morphology
Ribeiro,Rogério Alves; Ribeiro,João Alberto de Souza; Rodrigues Filho,Omar Andrade; Caetano,Abadio Gonçalves; Fazan,Valéria Paula Sassoli.
In head and neck surgery, the common carotid arteries are important landmarks, defining dissection plane during radical neck surgeries. The objectives of the present study were to add information on the diameter of the carotid arteries and to correlate the common carotid artery (CCA) bifurcation level with important anatomical landmarks used regularly in clinical practice. Forty-six necks from male embalmed human cadavers were evaluated. The CCA as the external (ECA) and internal (ICA) carotid arteries diameters were studied with the aid of an electronic digital caliper. No differences were found between sides in any level studied. The CCA bifurcation level was measured in relation to clinically relevant anatomical landmarks (superior level of the thyroid...
Tipo: Journal article Palavras-chave: Vascular anatomy; Surgical anatomy; Neck surgery; Carotid artery; Arterial diameter.
Ano: 2006 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000400019
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Unusual Branching Pattern of External Iliac Artery: Case Report International Journal of Morphology
Ranganath,Vallabhajosyula; Gayathri,T.
During the routine dissection, a rare anomaly was observed in left lower limb of a female cadaver. The external iliac artery continued as femoral artery, branched on lateral side as the lateral circumflex femoral artery and on medial side as profunda femoris artery. On tracing the lateral circumflex femoral artery, the ascending branch towards the spinous anastomosis was very thin and coursed behind the rectus femoris muscle. The transverse and descending branches were not observed, however, the artery coursed along the vastus lateralis towards the knee. The femoral artery had its normal course and continued as popliteal artery. The profunda femoris artery originated from the medial side of the external iliac artery, initially superficial to the femoral...
Tipo: Journal article Palavras-chave: External iliac artery; Profunda femoris; Lateral circumflex femoral artery; Variations; Vascular anatomy.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000300028
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XYLEMANATOMYOF BETULAPENDULA ROTHSAPLINGS: RELATIONSHIP TO PHYSICAL VASCULAR MODELS Gayana Botánica
Átala,Cristian; Lusk,Christopher H.
In conifers and diffuse-porous angiosperms, tracheary elements have an important role in structural support and water transport. In these plants it is expected that the conflict between the mechanic and hydraulic function will result in less efficient water transport at the whole plant level than the expected for plants whose conduits do not fulfil a mayor structural role (vines and ring-porous trees). Here we analyse the vascular architecture of Betula péndula saplings in order to examine predictions for diffuse-porous trees. Murray's law (conservation of Zr³) was not supported in basal tissues where the mechanical demands are be greater. Although distal portions did not depart significantly from Murray's law, lower exponents better described the...
Tipo: Journal article Palavras-chave: Murray's law; Plant vascular models; Water transport models; Vascular anatomy.
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432008000100004
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