Anatomy and ultrastructure of the reproductive organs in. Histology of the ovary of the laying hen gallus domesticus. Know the microscopic anatomy of testis seminiferous tubules, spermatocytes, sperm, etc. 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. This document described the omnivorous behaviour of the agouti which is primarily considered a frugivorous animal. In humans the testes occur as a pair of ovalshaped organs. Microscopic anatomy of selected male and female reproductive organs 21. Testosterone release is controlled by the anterior pituitary luteinizing hormone. Human beings commonly have one testis hanging lower than the other. At birth, a female has approximately 12 million eggs, but only 300 of these eggs will ever become mature and be released for the purpose of fertilization. Pdf reappraising the microscopic anatomy of human testis. Studies on mitochondrial macromolecular syntheses in. Appendix of the testis is a benign structure of the testis that is a remnant of the muellerian duct.
Meiosis microscopic leaf section wet mount vas ductus deferens. Testicle or testis is the male reproductive gland or gonad in all animals, including humans. What is the function of the cavernous bodies seen in the male penis. Over 222 ovary testis pictures to choose from, with no signup needed. The anatomy, histology and development of the testis, epididymis and ductus deferens. Female right ovary left ovary uterine horns uterus vagina. Provides a site for immature sperm entering it from the testis to complete their maturation process. Anatomy of the scrotum the following structures enclose the contents of the scrotum, from outside to inside. Reproductive system microscopic anatomy of the ovary and.
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. The ovaries are responsible for housing and releasing ova, or eggs, necessary for reproduction. The testis is divided into a number of lobes by connective tissue. The scrotum is often asymmetric, with one testis extending further down than the other. Testis, commonly referred to as testicle, is a mobile organ lying within the scrotum. Microscopic examination of reproductive structures 1. Females have a pair of ovaries, held by a membrane beside the uterus on each side of the lower abdomen.
It should be mentioned that the testis parenchyma weight was almost 1. Morphological and histomorphological structures of testes and. Male anatomy 10 medical university of south carolina. This chapter deals with the normal macroscopic, microscopic, and ultrastructural morphology of the human ovary, and its hormonal function. Seminiferous tubules converge into rete testis at hilum, anastomose into efferent tubules. Reproductive organ tissue ovary, testis makes up the structure of female and male sex organs respectively. Microscope slide of testis using available resources textbook, posters, etc. The epididymis consists mostly of the coiled epididymal duct, at the cauda of the epididymis the ductus deferens starts fig. Testis and ovary histology questions and study guide. You might consider seeing a gyn oncologist for this.
Microscopic anatomy of the testis in interactive image. Testes produce sperm and androgens, primarily testosterone. Initially, it begins as an undifferentiated gonad in the retroperitoneal area. The use of animal models is critical in identifying early disease markers and developing and testing. Alessandro ilacqua, davide francomano, and antonio aversa. Microscopic anatomy of the ovary of alouatta caraya. 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.
Learn vocabulary, terms, and more with flashcards, games, and other study tools. The inflammatory cells with testicular torsion are frequently lymphohistiocytic instead of the mixed inflammatory cells of a polyarteritis nodosa. The most significant feature seems to be the presence in adult ovaries of abundant glandular interstitial tissue which occupies both the cortex and medulla. Reappraising the microscopic anatomy of human testis nature. The anatomy, histology and development of the testis. Pdf telocytes are a recently described stromal cell type widely distributed in. 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. Anatomy of the ovaries is displayed in the images below. Anatomy and physiology lab exercise 30, 31, 33a 50. Reproductive system microscopic anatomy of the ovary and testes lab. Testes in males are analogous to the female ovaries. The microscopic structure of thealouatta caraya ovary is studied in different ages and reproductive stages.
When released, this travels down the fallopian tube into the uterus, where it may become fertilized by a sperm. The testes are surrounded by a thick layer of dense connective tissue, called tunica albuginia. Well go over the different structures within each testis and. Pdf this study investigated the gross and microscopic anatomy of the reproductive. For embryology we do not study microscope slides of other male reproductive organs covered on this tape. In this study we described the macroscopic and microscopic histology of the reproductive.
After their descent, the testes remain connected with the abdomen by spermatic cords, and attached to the scrotum by the testicular ligament. Histology of the ovary and testis insert the images from the reproductive slide supplemental document, then add required labels by hand. Testis section under the microscope section of testis tissue under the microscope. Extension of mesovarium forming germinal epithelium, overlying tunica albuginea parts. Transcription of the sry gene testisdetermining factor region on the y chromosome ultimately leads to sex differentiation. Between the layers is a small amount of serous fluid that prevents friction and allows the testis to move in the scrotum. First published in 1950 and translated into eight languages, kuehnels pocket atlas of cytology, histology and microscopic anatomy is a proven classic. Testis, plural testes, also called testicle, in animals, the organ that produces sperm, the male reproductive cell, and androgens, the male hormones. They are contained within the scrotal sac, which is located directly behind the penis and in front of the anus. The laying hen gallus domesticus is a robust animal model for epithelial ovarian cancer.
This microscopic anatomy of the ovary and testes lab is part of my. There is an ovary from latin ovarium, meaning egg, nut found on each side of the body. No matter what your age, you should have it surgically removed. It is an important component of both the male reproductive system and the endocrine system. Taken into account that tcs have also been proposed to behave as hormonal sensors in the human female reproductive organs i. The ovary is a ductless reproductive gland in which the female reproductive cells are produced.
Light microscopy photomicrographs of human testis sections. Embryology of the testis medical university of south. Anatomy of the testis, epididymis and spermatic cord. A 27cm ovarian cyst has a low chance of being cancer in a young women in her 20s. Color atlas of cytology, histology, and microscopic anatomy. Inside lobules are located in the seminiferous tubules. Clinical history is useful but often can overlap for both entities at presentation. On electron microscopic radioautograms obtained from each animal, ten photographs in respective groups, numbers of mitochondria per cell. Crosssection of the ovary of a nonpregnant female agouti. Histology of the testis, epididymis and spermatogenesis. 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. Morphology and histology of the male reproductive system. The testicles are oval shaped, homogeneous low level echogenic structures and measure approximately 4 x 3 x 2 cm in size. Ovaries secrete hormones estrogen and progesterone.
Reproductive system lab report assistant exercise 1. Imperfect descent of the testis may be incomplete descent or ectopia testis. Insl3 expression in the ovary initiated day 6 after birth. Get a printable copy pdf file of the complete article 285k, or click on a page image below to browse page by page. These organs are parts of the reproductive and endocrine systems. Testis, seminiferous tubules, cross sect testicle macro seminiferous tubule. Testes develop retroperitoneally on the posterior abdominal wall and descend to scrotum before birth. The testes are a pair of male reproductive organs that produce sperm and some reproductive hormones. This position has only previously been described for the left ovary in the domestic hen mclelland and king 1970. The functions of the testes are to produce both sperm and androgens, primarily testosterone.
Well go over the different structures within each testis and how they function. The pediatric testicle measures approximately 1 cubic centimeter and increases steadily in size from approximately 8 years until puberty when it reaches. The primary functions of testis are to produce sperm and androgens. Research article seasonal variation in the microscopic. Topography and microscopic anatomy of the testes of the swan. No fat to maintain temperature lower than rest of body contains. Each of these lobes contains one to four, which converge on a tubular region at the testis hilus called the. The histology of the testis in present study revealed preparatory phase during spring season with small testicular lobules and packed interlobular spaces with dense stroma which consists of loose connective. Know the microscopic anatomy of the ovary follicles, oocytes, etc. Anatomy of the testis and epididymis lateralright view on the testis, we can observe two sides. Embryology of the testis parks and jameson endocrinology 1463. The fully revised and updated fourth edition contains 745 fullcolor illustrations almost 200 more than were included in the third.
The female reproductive system consists of a pair of ovaries alongwith a pair. The testis from the greek word orchis is the male gland important for both reproductive exocrine and endocrine functions. Pdf gross and microscopic anatomy of the reproductive tract of. As previously, the schedule for neet 2019 examination has three subjects physics, chemistry, and biology. This timeless pocket atlas is the ideal visual companion to histology and cytology textbooks. Testis morphometry, seminiferous epithelium cycle length. In the male reproductive system, the scrotum houses the testicles or testes singular. The testes are two ovalshaped organs in the male reproductive system. This site describes the histology of the testes including cells in the seminiferous tubules and leydig cells and ducts.
This microscopic anatomy of the ovary and testes lab is part of my reproductive system unit that covers human reproduction. Morphological characteristics were almost similar between testis and ovary in early developmental stages. The ovaries are homologous with the testes in the male. The ovary is an organ found in the female reproductive system that produces an ovum. Inside lobules are located in the seminiferous tubules 2 to 4 tubes per lobule. Once this lab report is complete, print out the document and place in your lab notebook for submission at the end of the semester.