Anatomy and Histology of the Atrio-Ventricular Node of Goats<i>(Capra hircus)</i>

Nabipur, A.

doi:10.1080/09712119.2002.9706407

Cited by 6 publications

(2 citation statements)

References 4 publications

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“…It located 0.5 mm or less beneath the endocardium. The findings are in agreement with the observations of previous studies (James, ; Nabipour, ). However, in rabbit (James, ) and guinea pig (Nabipour, ), the AVN was occupied the entire interatrial septum.…”

Section: Discussionsupporting

confidence: 94%

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Morphological study of the atrioventricular conduction system and Purkinje fibers in yak

Duan

Cui

et al. 2017

Journal of Morphology

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We studied the morphology of the atrioventricular conduction system (AVCS) and Purkinje fibers of the yak. Light and transmission electron microscopy were used to study the histological features of AVCS. The distributional characteristics of the His-bundle, the left bundle branch (LBB), right bundle branch (RBB), and Purkinje fiber network of yak hearts were examined using gross dissection, ink injection, and ABS casting. The results showed that the atrioventricular node (AVN) of yak located in the right side of interatrial septum and had a flattened ovoid shape. The AVN of yak is composed of the slender, interweaving cells formed almost entirely of the transitional cells (T-cells). The His-bundle extended from the AVN, and split into left LBB and RBB at the crest of the interventricular septum. The LBB descended along the left side of interventricular septum. At approximately the upper 1/3 of the interventricular septum, the LBB typically divided into three branches. The RBB ran under the endocardium of the right side of interventricular septum, and extended to the base of septal papillary muscle, passed into the moderator band, crossed the right ventricular cavity to reach the base of anterior papillary muscle, and divided into four fascicles under the subendocardial layer. The Purkinje fibers in the ventricle formed a complex spatial network. The distributional and cellular component characteristics of the AVCS and Purkinje fibers ensured normal cardiac function.

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Section: Discussionsupporting

confidence: 94%

“…An abundance of large nerve trunks were observed in the central part and the periphery of AVN of the yak heart, similar to that observed in some species, such as cattle (James, ), horse (Meyling & Ter Borg, ), and goat (Nabipour, ). However, the nerve trunks were less in the dog (James, ), human (Titus et al, ).…”

Section: Discussionsupporting

confidence: 79%