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The morphological analysis of aorticorenal ganglion was based on the morphometry and morphology of above-mentioned ganglion. The neural connections of the ganglion afferent and efferent branches and nerves were also described. Key words: dogs, perinatal period, sympathetic system, aorticorenal ganglion. The morphologic analysis of aorticorenal ganglion in sheeps and pigs in perinatal period introduced Pospieszny [7, 8]. The morphology of above-mentioned ganglion and its function in neural kidney supply was described by Norvell [6], the innervations of kidneys and suprarenal glands in horse, pig and sheep postnatally, introduced Langenfeld [3]. The aorticorenal ganglion is binate and it usually lies above the renal artery, between this artery and the abdominal aorta, sometimes it is situated cranially from the renal artery.

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The morphological analysis of aorticorenal ganglion was based on the morphometry and morphology of above-mentioned ganglion. The neural connections of the ganglion afferent and efferent branches and nerves were also described.

Key words: dogs, perinatal period, sympathetic system, aorticorenal ganglion. The morphologic analysis of aorticorenal ganglion in sheeps and pigs in perinatal period introduced Pospieszny [7, 8]. The morphology of above-mentioned ganglion and its function in neural kidney supply was described by Norvell [6], the innervations of kidneys and suprarenal glands in horse, pig and sheep postnatally, introduced Langenfeld [3].

The aorticorenal ganglion is binate and it usually lies above the renal artery, between this artery and the abdominal aorta, sometimes it is situated cranially from the renal artery. In some cases the aorticorenal ganglion can be doubled or tripled on one body side [2]. It was described in adult domestic animals.

The investigations are very interesting because they refer to the aorticorenal ganglion, which is responsible for a lot of important functions in organism. Our work gives a detailed description of the ganglion, its location and neural connections.

The age of fetuses was assigned to the 62 nd day of gestation. It allows to proper interpretation of the neuroanatomical events. The investigation was made using the magnifying glasses and stereoscopic microscope. The measurements were taken with an electronic slide-caliper to the last complete 0,1 mm. The work contains also photographies. RESULTS Location The aorticorenal ganglion in investigated dogs from perinatal period occurred varied topography with regard to renal artery and abdominal aorta.

Above-mentioned ganglion lies in four different places, as shown in Fig. The mentioned ganglion lies on the right side in a half of its length in 2 females and 1 male.

In 2 females and 1 male it was located on the right side, nearby the hilum of kidney. It lies on the left in 1 female. Aorticorenal ganglion lies on the right in a half of the artery. The same situation on the left occurs in 1 female. It lies on the right side in 1 male. The aorticorenal ganglion ganglion aorticorenale of dogs American Staffordshirre Terrier from perinatal period.

Left side of investigated material. In one female, the first ganglion was located on the left side behind the renal artery in a half of its length and the second lies in front of the renal artery, nearby the hilum of kidney.

In the first male both the ganglions lie on the left side, below the wall of abdominal aorta. In the second male, the first ganglion was located behind the renal artery, in a half of its length and the second lies in front of the renal artery, nearby the hilum of kidney. Shape The shape of investigated ganglion: elongated ovate The aorticorenal ganglion was elongated on the right side in 4 males and 5 females, and on the left side in 4 females and 3 males.

The ganglion take the shape of oval in other investigated fetuses. Morphometry During the investigations following measurements were executed: length of the aorticorenal ganglion on both side of the body length from the aorticorenal ganglion to caudal extremity of the suprarenal gland on both side of the body Tab.

The longest section was in the first group on the left side and equals 3. Table 1. The length of section from the aorticorenal ganglion to the suprarenal gland caudal extremity with regard to sex Number Sex Left side Average Right side Average 2 M 4.

The thoracic ganglia gives communicating branches rami communicantes , which join each other and form the trunk of above-mentioned nerve. This situation refers to both sides of the body. There, the major part of neural fibres reaches the caudal pole of suprarenal gland, the slender of neural fibres join the aorticorenal ganglion Tab.

Table 5. They give the lumbar splanchnic nerves in the amount of two on both sides, which are joining the renal plexus and the aorticorenal ganglion. The first lumbar ganglion L 1 gives four branches, which penetrate into the renal plexus and the aorticorenal ganglion. The longest branch goes to the hilum of kidney. The plexus is formed by branches from the celiac plexus, lumbar splanchnic nerves, the branches of lesser splanchnic nerve and branches from the aorticorenal ganglion.

Sceletotopy The location of aorticorenal ganglion is varied not only in males and females, but also on the right and left side of the body. It is caused by the varied location of above-mentioned ganglion with regard to the renal artery and abdominal aorta. In 1 female it lies on both sides on the level of L 3.

In 1 male on the level of L 1 no the right side. The varied location of ganglion occurs also on the left side of the body. In 1 male and 1 female it is located on the level of L 1 Tab.

It is caused not only by the location of ganglion with regard to the renal artery and abdominal aorta, but also by the location of abdominal organs with regards to each other. The location of aorticorenal ganglion in pigs from perinatal period is stable [7]. In our investigation we proofed the varied location of aorticorenal ganglion with regard to renal artery.

Above-mentioned ganglion lies cranially or caudally from the renal artery, it lies also directly on the wall of abdominal aorta or nearby the output of renal artery from aorta. We observed two shapes of the ganglion: ovate and elongated.

The same ganglion in pigs takes the shape of spindle, triangular or it was irregular [7]. The length of mentioned ganglion is much bigger on the right side both in males and females than on the left. The aorticorenal ganglion joins the major splanchnic nerve, lesser splanchnic nerve, celiac ganglion and celiac plexus, lumbar splanchnic nerves, renal plexus and by renal branches kidney.

Our results can not be compared to the works introduced by Langenfeld and Norvell [3], because their investigations refer to adult animals. It occurs four locations of the ganglion. It occurs two shapes of above-mentioned ganglion. It occurs varied location with regard to the lumbar vertebrae and the renal artery.

Varied ganglion length on both sides of the body. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Pospieszny N. The morphometry of aorticorenal ganglion with regard to the length and weight of fetus. Length of the ganglion. Table 2. The sceletotopy with regard to the lumbar vertebrae. Table 3. The length of section from the aorticorenal ganglion to the suprarenal gland caudal extremity. Table 4. The length of section from the aorticorenal ganglion to the suprarenal gland caudal extremity with regard to sex.

The location of major splanchnic nerve and the place of neural roots branching. Location of nerve. Place of branching.

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