scholarly journals Morphological study of the testis of adult Sudanese Chicken : gallus domesticus

2022 ◽  
Vol 7 (1) ◽  
Author(s):  
Al-Bajuri Salwa Ismail Abd al-Qadir
Keyword(s):  
Morphological Study ◽  
Gallus Domesticus ◽  
Cold Weather ◽  
Seminiferous Tubules ◽  
Left Testis ◽  
Adult Chicken ◽  
Mean Diameter ◽  
Hot Season ◽  
The Mean ◽  
The Right

Morphological study of the testis of adult Sudanese Chicken : gallus domesticus The adult chicken testes were two bean - shaped , large and soft , the left testis is usually higher in position and larger in size than the right one . The testis is active during cold weather with the mean diameter of the seminiferous tubules being 126^m in the chicken . it is less active during the hot season with the mean diameter of the seminiferous tubules being 135^m in the chicken. The non - breeding season seemed to be characterized by a decline in the spermatogenic activity only and not by complete spermatogenesis

scholarly journals Histo morphometric evaluation of testes of Black Bengal goats

2019 ◽  
Vol 35 (1-2) ◽  
pp. 40-46
Author(s):  
AB Siddique ◽  
KA Ferdous ◽  
MNH Parvez ◽  
MS Islam ◽  
MA Hassan ◽  
...  
Keyword(s):  
Leydig Cells ◽  
Cell Types ◽  
Seminiferous Tubules ◽  
Left Testis ◽  
Tissue Samples ◽  
Microscopic Studies ◽  
Length Width ◽  
The Mean ◽  
The Right ◽  
Morphometric Evaluation

This study was designed to explore the gross and microscopic structures of the testes of Black Bengal bucks (n = 14) with special emphasis on the seminiferous tubules. A quantitative comparison of the various cell types in the seminiferous tubules of the testes were done. Biometrical values of testes were recorded. The left testes were significantly larger than the right. The mean length, width, weight and circumference of the left testis were 6.7 ± 0.1 cm, 3.9 ± 0.0 cm, 66.9 ± 0.8 gm and 13.4 ± 0.2 cm, respectively. The mean length, width, weight and circumference of the right testis were 6.3 ± 0.0 cm, 3.8 ± 0.0 cm, 66.5 ± 0.8 gm and 13.1 ± 0.1 cm, respectively. For microscopic studies tissue samples were evaluated with quantitative techniques. The testis was encapsulated by tunica toward the mediastinum testis. The testicular parenchyma was divided into convoluted seminiferous tubules and Leydig cells, which were found in the intertubular spaces. The Bangladesh Veterinarian (2018) 35(1&2): 40-46

scholarly journals True hermaphroditism associated with microphthalmia

1999 ◽  
pp. 62-65 ◽  
Author(s):  
T Hayashi ◽  
Y Kageyama ◽  
K Ishizaka ◽  
T Tsujii ◽  
H Oshima
Keyword(s):  
Y Chromosome ◽  
X Chromosome ◽  
Inguinal Canal ◽  
Chromosome Analysis ◽  
Interstitial Deletion ◽  
Seminiferous Tubules ◽  
Left Testis ◽  
Primordial Follicles ◽  
The Right ◽  
Hormonal Condition

A 4-year-old boy with an undescending left testis, penoscrotal hypospadia and bilateral microphthalmia was admitted to our hospital. Chromosome analysis revealed a karyotype of 46, XX del(x)(p2 2,31) and the sex-determining region of the Y chromosome (SRY) was negative. The right testis was located in the scrotum and a left cystic ovary-like gonad, a salpinx and a unicorn uterus were found in the left inguinal canal. Histologically the gonad was an ovotestis in which primordial follicles covered infantile seminiferous tubules. Microphthalmia is observed in some congenital syndromes caused by interstitial deletion of the X chromosome. This case suggested that the short arm of the X chromosome was involved in the differentiation of the gonad. Very closely located follicles and infantile seminiferous tubules indicated that induction of meiosis in the fetus was controlled by the local microenvironment in follicles and seminiferous tubules, and not by the systemic hormonal condition.

Morphological changes in the ampula of the uterine tubes in different periods of life of giving women

2021 ◽  
Vol 22 (3) ◽  
pp. 9-12
Author(s):  
I. A. Balandina ◽  
◽  
A. M. Nekrasova ◽  
Keyword(s):  
Fallopian Tube ◽  
Morphological Study ◽  
Transverse Section ◽  
Morphological Changes ◽  
Age Groups ◽  
Fallopian Tubes ◽  
Autopsy Material ◽  
Mean Values ◽  
The Mean ◽  
The Right

The aim of the study is to determine the dynamics of morphological changes in the ampullae of the fallopian tubes at different age periods of life using autopsy material from women giving birth. Materials and research methods. The analysis of the results of a complex morphological study of the ampullae of the fallopian tubes of 150 corpses of giving birth women of adolescence, the first and second periods of adulthood, elderly and old age was carried out. Results. The histological picture revealed regular atrophic changes in all layers of the wall of the ampulla of the fallopian tube. When comparing the mean values in five age groups according to the Kruskell-Wallis test, statistically significant differences in the length of the epithelial lining in the transverse section of the ampulla of the right and left fallopian tubes (p < 0,001), as well as the wall thickness of the ampulla of the right and left fallopian tubes (p < 0,001) have been identified. Conclusion. The results of the study supplement the literature data on morphological changes in the fallopian tube and can be used as a standard reference.

Morphology of bull testes and seminal vesicles in relation to testicular androgens

1961 ◽  
Vol 154 (957) ◽  
pp. 433-448 ◽  
Keyword(s):  
Citric Acid ◽  
Correlation Coefficients ◽  
Secretory Activity ◽  
Seminal Vesicles ◽  
Endocrine Function ◽  
Seminiferous Tubules ◽  
Interstitial Tissue ◽  
Mean Diameter ◽  
The Mean ◽  
Tubular Diameter

Correlations were studied between various morphological and functional characteristics of the testis and seminal vesicle in bull calves and bulls, ranging in age from 28 days to 17½ years. Data obtained by the analysis of testosterone and androstenedione in the testes, and of fructose and citric acid in the seminal vesicles, were related to results of gross anatomical and histological measurements of these organs. The mean diameter of the seminiferous tubules was adopted as a means of assessing testicular function, since it was shown that this diameter is related to the weight of the testis as a whole ( r = 0.92, P < 0.001), to the arrangement of the interstitial tissue, and to definite stages in the differentiation of the seminiferous epithelium . At 28 days, when the bull testis is relatively inactive, both as regards spermiogenesis and the endocrine function, the mean diameter of the seminiferous tubules was 48 μ. At the age of 90 days, coinciding with the appearance of spermatogonia in the testes, and just prior to the marked increase in fructose and citric acid formation in the seminal vesicles, it was 66 μ. At about 4½ months, when the androstenedione/testosterone ratio falls abruptly, the tubular diameter increased to more than 90 μ. By 7½ months, when the first spermatozoa appear in the tubules, it had risen to 177 μ. A significant correlation was established between the growth and secretory activity of the seminal vesicles and the diameter of the seminiferous tubules in bull testes. Correlation coefficients were established between the tubular diameter and the following: the weight of the seminal vesicles, r = 0.95, P < 0.001; the contents o f fructose and citric acid in the seminal vesicles, r = 0.81, P = 0.01 to 0.001; and the concentrations of fructose and citric acid in the seminal vesicles, r = 0.82 and r = 0.76, respectively, P = 0.01 to 0.001.

Effects of prolactin on testicular functions using an intratesticular pituitary graft

1983 ◽  
Vol 99 (3) ◽  
pp. 435-NP ◽  
Author(s):  
R. F. A. Weber ◽  
M. P. Ooms ◽  
J. T. M. Vreeburg
Keyword(s):  
Inhibitory Effect ◽  
Seminiferous Tubules ◽  
Left Testis ◽  
Direct Inhibitory Effect ◽  
Pituitary Glands ◽  
The Right ◽  
Venous Plasma

Pituitary glands were grafted under the capsule of the left testis of rats to induce high levels of prolactin in this organ. One hundred days after implantation, significantly increased levels of prolactin were found in the tissue and the venous plasma of the left testis. Although the levels of testosterone in testicular venous plasma were not raised, the testicular content of testosterone was increased when compared to the right testis. The ratio of testosterone and dihydrotestosterone was not affected in the pituitary-grafted testis. Since the seminiferous tubules adjacent to the pituitary graft appeared to be completely normal, it is concluded that in the rat high levels of prolactin have no direct inhibitory effect on testicular functions.

scholarly journals Morphological study of foramen venosum in dry human skulls in Northeast Brazil

2021 ◽  
Author(s):  
Ivon Marcos Inácio Rodrigues ◽  
Desiré Dominique Diniz de Magalhães ◽  
André de Sá Braga Oliveira ◽  
Pablo Mariz de Oliveira ◽  
Amanda do Nascimento Oliveira e Carneiro
Keyword(s):  
Morphological Study ◽  
Northeast Brazil ◽  
Foramen Ovale ◽  
Surgical Interventions ◽  
Human Adult ◽  
High Incidence ◽  
Mean Diameter ◽  
Emissary Veins ◽  
Human Skulls ◽  
The Right

Introduction: The foramen venosum (FV) is located in the larger wing of the sphenoid bone and allows the passage of emissary veins that help to balance the intra and extracranial pressure. Knowledge of its morphology and associated structures has an important surgical value. Objective: Analyze the morphology of FV and its relation to adjacent foramina in Northeast Brazil. Methods: 117 human adult skulls of Federal University of Paraíba were classified by gender, FV type and laterality, being evaluated the diameter of FV, foramen ovale (FO) and foramen spinosum (FS), as well as the distance of FO and FS to FV (DFVFO and DFVFS). Values of p≤0.05 were considered significant. Results: 52 (44.4%) skulls (65 sides, 29 on the right and 36 on the left) presented FV, being 63.46% females and 36.53% males. 33.3% of FV were unilateral and 11.1% were bilateral. The FV were mostly oval (50.7%) and round (49.3%) types. Mean diameter of FV was 3.56±0.7mm, FO 7.88±1.16mm, FS 4.01±0.39mm, DFVFO 8.18±1.09mm and DFVFS was 14.54±1.68mm. Only FO (p=0.009) and FS (p=0.001) had significant differences between genres, and DFVFO had among sides (p=0.021). Conclusions: FV has a high incidence in Northeast Brazil, predominantly in females on the left side with oval and round types. Its relation with other foramina showed differences among genres and sides. This shows the relevance of the FV study to minimize the risk of iatrogenic injury during surgical interventions in this region.

scholarly journals 3 Years Expeimental Study on Abdominal Aortic Aneurysm Patients Who were Treated with Endovascular Aneurysm Repair at Dr. Mohammad Hoesin Hospital Palembang During 1st of January 2018 – 31st of December 2020

2021 ◽  
Vol 4 (2) ◽  
pp. 286-304
Author(s):  
Muhammad Febriandi Djunaidi ◽  
Kemas Muhammad Dahlan ◽  
Fahmi Jaka Yusuf
Keyword(s):  
Abdominal Aortic Aneurysm ◽  
Aortic Aneurysm ◽  
Femoral Artery ◽  
Iliac Artery ◽  
Endovascular Aneurysm Repair ◽  
Abdominal Aortic ◽  
Mean Diameter ◽  
History Of ◽  
The Mean ◽  
The Right

Abdominal aortic aneurysm (AAA) is a focal dilatation of the aortic segment with an increase of 1.5 times the normal value or ≥3 cm. The risk increases in old age and requires alternative surgery such as EVAR. EVAR is more useful in AAA therapy than surgery with wide incisions. This research was descriptive in RSMH Palembang for 5 years in 1st of January 2018 - 31st of December 2020 with variables of patient clinical characteristics and patient CTA results. The results showed that AAA was more common in men, aged 60-69 years with high school education, risk factors such as a history of CHF, hypertension, CAD, and smoking habits. Angiographic CT result showed proximal diameter > 2 cm, PAU, calcification, iliac aneurysm, and lowest renal artery on the left side. All AAA patients had inferior limb thrombus and angulation > 600. The average of aneurysm is 5.8 cm in diameter and 9.23 cm in length. The mean diameter of the right iliac artery differs from the mean diameter of the left iliac artery. The diameter of the right femoral artery also differs from the diameter of the left femoral artery. AAA patients mostly had no history of CKD, COPD, and DM. The patients were hospitalized for an average of 7 days, especially in the ICU for 2 days.

scholarly journals Microsurgical anatomy of the arterial basket of the conus medullaris

2015 ◽  
Vol 22 (6) ◽  
pp. 672-676 ◽  
Author(s):  
Nikolay L. Martirosyan ◽  
M. Yashar S. Kalani ◽  
G. Michael Lemole ◽  
Robert F. Spetzler ◽  
Mark C. Preul ◽  
...  
Keyword(s):  
Blood Supply ◽  
Vascular Malformations ◽  
Conus Medullaris ◽  
Microsurgical Anatomy ◽  
Arteriovenous Fistulas ◽  
Mean Diameter ◽  
The Mean ◽  
Posterior Spinal Arteries ◽  
The Right ◽  
Formalin Fixed

OBJECT The arterial basket of the conus medullaris (ABCM) consists of 1 or 2 arteries arising from the anterior spinal artery (ASA) and circumferentially connecting the ASA and the posterior spinal arteries (PSAs). The arterial basket can be involved in arteriovenous fistulas and arteriovenous malformations of the conus. In this article, the authors describe the microsurgical anatomy of the ABCM with emphasis on its morphometric parameters and important role in the intrinsic blood supply of the conus medullaris. METHODS The authors performed microsurgical dissections on 16 formalin-fixed human spinal cords harvested within 24 hours of death. The course, diameter, and branching angles of the arteries comprising the ABCM were then identified and measured. In addition, histological sections were obtained to identify perforating vessels arising from the ABCM. RESULTS The ASA tapers as it nears the conus medullaris (mean preconus diameter 0.7 ± 0.12 mm vs mean conus diameter 0.38 ± 0.08 mm). The ASA forms an anastomotic basket with the posterior spinal artery (PSA) via anastomotic branches. In most of the specimens (n= 13, 81.3%), bilateral arteries formed connections between the ASA and PSA. However, in the remaining specimens (n= 3, 18.7%), a unilateral right-sided anastomotic artery was identified. The mean diameter of the right ABCM branch was 0.49 ± 0.13 mm, and the mean diameter of the left branch was 0.53 ± 0.14 mm. The mean branching angles of the arteries forming the anastomotic basket were 95.9° ± 36.6° and 90° ± 34.3° for the right- and left-sided arteries, respectively. In cases of bilateral arterial anastomoses between the ASA and PSA, the mean distance between the origins of the arteries was 4.5 ± 3.3 mm. Histological analysis revealed numerous perforating vessels supplying tissue of the conus medullaris. CONCLUSIONS The ABCM is a critical anastomotic connection between the ASA and PSA, which play an important role in the intrinsic blood supply of the conus medullaris. The ABCM provides an important compensatory function in the blood supply of the spinal cord. Its involvement in conus medullaris vascular malformations makes it a critical anatomical structure.

Development of the gonads in the triploid (ZZW and ZZZ) fowl, Gallus domesticus, and comparison with normal diploid males (ZZ) and females (ZW)

1995 ◽  
Vol 7 (5) ◽  
pp. 1185 ◽  
Author(s):  
M Lin ◽  
MH Thorne ◽  
IC Martin ◽  
BL Sheldon ◽  
RC Jones
Keyword(s):  
Young Adults ◽  
Gonadal Development ◽  
Gallus Domesticus ◽  
Seminiferous Epithelium ◽  
Seminiferous Tubules ◽  
Duct System ◽  
Diploid Males ◽  
The Right ◽  
Duct Development

Gonadal development in fowls aged from 1 day to more than 4.5 years was studied in 63 ZZW and 16 ZZZ triploid crossbreds and compared with normal diploid males (ZZ) and females (ZW). In the ZZW fowl, the right gonad developed into a testis (although this occurred earlier in the ZZ genotype), and a structurally-abnormal excurrent duct system containing some malformed spermatids and spermatozoa was associated with the gonad of young adults. The left gonad was an ovotestes at hatching and no excurrent ducts were associated with it. The ovarian component was much less developed than that in the ZW genotype-it started to degenerate by 1 week of age, and most of the oocytes had disappeared by about 3 weeks of age. The seminiferous tubules developed in the medullary region, but only abnormal spermatozoa were produced. Leukocytes infiltrated both gonads at about 9 months of age and the seminiferous epithelium had degenerated in most fowls over 1 year old. In ZZZ fowl, gonadal and excurrent duct development was normal, but occurred earlier than in the ZZ genotype. However, meiosis and spermiogenesis were abnormal and malformed spermatozoa were produced. The heads of spermatozoa from the ducts deferens were about 1.4-times longer in the ZZZ genotype than in the ZZ genotype, indicating that the former may be producing some diploid spermatozoa.

CASE REPORT: UNILATERAL ECTOPIC TESTIS IN THE TUNICA ALBUGINEA CONCURS WITH EPIDIDYMAL HYPERPLASIA IN THE ATROPHIC TESTIS IN A DOG

2017 ◽  
Vol 43 (04) ◽  
pp. 307-311
Author(s):  
Chun-Ming Lin ◽  
Hock-Liew Eng ◽  
Victor F. Pang ◽  
Fun-In Wang
Keyword(s):  
Spermatic Cord ◽  
Tunica Albuginea ◽  
Testicular Atrophy ◽  
Seminiferous Tubules ◽  
Cell Adenoma ◽  
Left Testis ◽  
Ectopic Testis ◽  
The Right ◽  
Convoluted Tubules ◽  
Arterial Malformation

A 10-year-old male Fox Terrier presented with two descended testes of different sizes. The left testis was normal, while the right one was atrophic. The tunica albuginea (TA) of the right testis was distributed with brown spots of less than 1[Formula: see text]mm in diameter, and was microscopically determined to be ectopic testis which consists of Leydig cell adenoma, primitive seminiferous tubules (STs), intratubular seminoma, and reduplication of arterioles. At the junction of the TA with the spermatic cord, units of testis primordia were present. The STs of the remaining atrophic (not ectopic) right testis were populated not by germ cells but by ciliated pseudostratified cells mimicking those of the epididymis, as supported by the immunohistochemistry results. During the adaptation process, multiple smaller tubules combined into fewer but larger less convoluted tubules. This is a case of concurrent ectopic testis and arterial malformation in the TA with hypoxia, subsequent testicular atrophy, and epididymal hyperplasia in a dog.

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