Microscopic anatomy of testis and ovary pdf merge

No fat to maintain temperature lower than rest of body contains. The scrotum is often asymmetric, with one testis extending further down than the other. Reproductive system microscopic anatomy of the ovary and. With the lowest power, identify the cremasteric fascia outside the testis, containing skeletal muscle fibers. Transcription of the sry gene testis determining factor region on the y chromosome ultimately leads to sex differentiation. Inside lobules are located in the seminiferous tubules. Initially, it begins as an undifferentiated gonad in the retroperitoneal area. Microscopically, the testis parenchyma is organized into multiple conical. The glomerulus is a capillary bed that filters blood.

The seminiferous tubules have a diameter of about 200. You might consider seeing a gyn oncologist for this surgery as they are. Introduction the male reproductive system figure 1 consists of a series of glandular, muscular, and ciliated tubes and diverticula dedicated to the production, storage, nourishment, and activation of spermatozoa, and to their transport into the female reproductive tract. It is an important component of both the male reproductive system and the endocrine system. Testis, in animals, the organ that produces sperm, the male. Jun 24, 2016 microscopic anatomy of ovary with description of different follicles and hand drawing of ovary slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The functions of the testes are to produce both sperm and androgens, primarily testosterone. Can you also identify the seminiferous tubules, which open into a network of anastomosing channels called the rete rete net testis at the mediastinum testes.

The testes are two ovalshaped organs in the male reproductive system. The testis develops in the abdominal cavity on its posterior wall from the genital ridge on the medial side of the developing mesonephros at the level of t10 segment. Morphological and histomorphological structures of testes and. They are distinguished by the presence of a ml and a longitudinal length of 4. Macroscopic and microscopic study of the testis after. Jun 30, 2016 the testis is a paired, ovoid male reproductive organ that sits in the scrotum, separated from its mate by a scrotal septum. Microscopic anatomy of the ovary of alouatta caraya. They are two nodular bodies, situated one on either side of the uterus in relation to the lateral wall of the pelvis, and attached to the back of the broad ligament of the uterus, behind and below the uterine tubes fig. Testis and ovary histology questions and study guide. Described by some as being shaped and sized like a large olive or small plum, the average volume of the adult testis is approximately 25 ml.

Discrete luteinized masses are present in the medulla in all. Testis, commonly referred to as testicle, is a mobile organ lying within the scrotum. Externally, the scrotum has a raised medial thickening on the surface called the raphae. Embryology of the testis the medical university of south. Inside lobules are located in the seminiferous tubules 2 to 4 tubes per lobule. No matter what your age, you should have it surgically removed. Pdf histological description of the testis, epididymis and. Pdf reappraising the microscopic anatomy of human testis. The pediatric testicle measures approximately 1 cubic centimeter and increases steadily in size from approximately 8 years until puberty when it reaches. All the components of the testis tunica albuginea, fibrous septa, seminiferous tubules, straight tubules, rete testis, and sertoli cells. This low power photograph of the testis shows its basic organisation.

A capsule made up of three distinct layers surrounds the parenchyma of the testis. Light microscopy photomicrographs of human testis sections. Testes develop retroperitoneally on the posterior abdominal wall and descend to scrotum before birth. The most significant feature seems to be the presence in adult ovaries of abundant glandular interstitial tissue which occupies both the cortex and medulla.

Histology of the testis, epididymis and spermatogenesis. Macroscopic and microscopic examination of seasonal gonad. Without the sry gene, the gonad would develop into an ovary. These organs are parts of the reproductive and endocrine systems. Get a printable copy pdf file of the complete article 285k, or click on a page image below to browse page by page. One or several highly convoluted seminiferous tubules form a.

Morphological characteristics were almost similar between testis and ovary in early developmental stages. The structures of the male reproductive system include the testes, the epididymides. The adult human testes are components of both the reproductive and endocrine systems structurally designed to perform spermatogenesis i. Testis morphometry, seminiferous epithelium cycle length, and.

They are contained within the scrotal sac, which is located directly behind the penis and in front of the anus. The ovaries are of a grayishpink color, and present either a. Male anatomy primary organ testes, genetically determined in mammals testis releases hormones that then control the development of secondary sex characteristics secondary organs internal duct system e. The functional unit of the kidney, the nephron, consists of the renal corpuscle, pct, loop of henle, and dct. As the tail of the epididymis merges with the ductus deferens, the microscopic anatomy.

The veins arising from the plexus merge to form the ovarian vein, which initially runs. May 01, 2003 based on the volume of the testis parenchyma testis weight minus tunica albuginea weight and the volume occupied by seminiferous tubules in the testis and the tubular diameter, approximately 23 m of seminiferous tubules were found per testis and testis gram. Pradeep kumar murudkar, 2,ratnapriyanka janamala 1professor and head, dept of anatomy, 2 tutor, dept of anatomy, 1,2khaja bandanawaz institute of medical sciences, gulbarga, karnataka. Mar 09, 2017 imperfect descent of the testis may be incomplete descent or ectopia testis. It should be mentioned that the testis parenchyma weight was almost 1. Macroscopic anatomy of the testis the ovoid testis in young healthy males has a volume of 15 to 25 tium of the testis. Microscopic anatomy of the testis in interactive image. The anatomy, histology and development of the testis. Reappraising the microscopic anatomy of human testis. The testicles are oval shaped, homogeneous low level echogenic structures and measure approximately 4 x 3 x 2 cm in size. Alessandro ilacqua, davide francomano, and antonio aversa. A 27cm ovarian cyst has a low chance of being cancer in a young women in her 20s. The microscopic structure of thealouatta caraya ovary is studied in different ages and reproductive stages. After their descent, the testes remain connected with the abdomen by spermatic cords, and attached to the scrotum by the testicular ligament.

Since the anatomy and function of the ovary vary considerably at different stages in a womans life, these aspects will be considered during adulthood, childhood, and after the menopause. The testes are surrounded by a thick layer of dense connective tissue, called tunica albuginia. In humans the testes occur as a pair of ovalshaped organs. Pdf the reproductive organs and processes anatomy and. Testicle or testis is the male reproductive gland or gonad in all animals, including humans. The testis from the greek word orchis is the male gland important for. Cortical nephrons have short loops of henle, whereas juxtamedullary nephrons have long loops of henle extending into the medulla. Anatomy of ovary only structure in abpelvis cavity that is extra peritoneal general info. In recent years, the classic description of the microscopic anatomical structure of a variety of. Macroscopic and microscopic study of the testis after ligation of head and body of epididymis in adult male albino rats. This chapter deals with the normal macroscopic, microscopic, and ultrastructural morphology of the human ovary, and its hormonal function.

Full text full text is available as a scanned copy of the original print version. It seems to be derived from the theca interna of atretic follicles. Microscopic anatomy of selected male and female reproductive organs 21. Testes produce sperm and androgens, primarily testosterone. Can you identify the thick collagenous capsule on the outside called the tunica albuginea. The testis from the greek word orchis is the male gland important for both reproductive exocrine and endocrine functions. The anatomy, histology and development of the testis, epididymis and ductus deferens. This microscopic anatomy of the ovary and testes lab is part of my. Morphology and histology of the male reproductive system in. Ovaries secrete hormones estrogen and progesterone. Anatomy of the scrotum the following structures enclose the contents of the scrotum, from outside to inside. What is the function of the cavernous bodies seen in the male penis.

Oct 03, 2018 paraffin and epoxy resinembedded normal human testis samples from 12 men aged 1830 years were selected from the archives of the section of anatomy and histology, department of experimental and clinical medicine, university of florence. Histological description of the testis, epididymis and ductus deferens of the northern great grey kangaroo macropus giganteus giganteus article pdf available january 2014 with 1,828 reads. Each of these lobes contains one to four, which converge on a tubular region at the testis hilus called the. Pdf histological description of the testis, epididymis. View lab report reproductive system lab report assistant. The epididymis consists mostly of the coiled epididymal duct, at the cauda of the epididymis the ductus deferens starts fig. Hollow, tubular structures, bilateral, 8 12 cm long and 0.

Reproductive system microscopic anatomy of the ovary and testes lab. Section 1 anatomy and physiology of the male 1reproductive system. In females, the ovaries secrete small amounts of testosterone, although most is. This website is intended for pathologists and laboratory personnel, who understand that medical information is imperfect and must be interpreted using reasonable medical judgment. The primary functions of testis are to produce sperm and androgens. Gametes are the reproductive cells that combine to form offspring. Learn vocabulary, terms, and more with flashcards, games, and other study tools. In females, the ovaries secrete small amounts of testosterone.

The testis is divided into a number of lobes by connective tissue. Anatomy of the testis, epididymis and spermatic cord. Well go over the different structures within each testis and how they function. Human beings commonly have one testis hanging lower than the other.