male reproductive system of rat ppt

$.' Expression of an AQP2 Cre recombinase transgene in kidney and male reproductive system of transgenic mice Am J Physiol. Male & Female Reproductive System.ppt [Read-Only] Author: Andrea D. Peterson Created Date: 12/15/2007 1:25:17 PM de Barros AL, Bae JH, Borges CS, Rosa JL, Cavariani MM, Silva PV, Pinheiro PF, Anselmo-Franci JA, Arena AC. Lateral view of the internal male reproductive organs.|via biology-forums.com Epididymis. <>>> The Cowper’s glands, also known as the bulbourethral glands, are made up of multiple lobules that secrete a pre-ejaculatory, or Cowper’s fluid, into the urethra during sexual arousal. The rat has two vesicular glands. The prepuce fits snugly around the penis and protects it from friction, debris, bacteria, and injury. 67. 74. doi: … Spermatozoa are produced in the seminiferous tubules. Procedure:Remove a single kidney (without damaging the other org… 3 0 obj Female urogenital tract. The vaginal walls are lined … %���� The working hypothesis was that social disruption in a mixed-sex colony would reveal functional changes that reflect the interaction between the two endocrine systems. Rats can hear up to 80 kHz in the ultrasonic range as opposed to people that can hear up to 17 kHz. These glands are located behind the urinary bladder and curve in towards the each other. Smegma is composed of oils, moisture, and shed epithelial cells. 68. <> endobj The results indicated that the reproductive toxicity of FA is dose-dependent. Wiggle the kidneys to helplocate these tiny tubes. Male Reproductive System ... male. endobj The male reproductive system
Composed of the testes, genital ducts, accessory glands, and penis.
The dual function of the testis is to produce spermatozoa and hormones.
The genital ducts and accessory glands produce secretions that, aided by smooth muscle contractions, conduct spermatozoa toward the exterior. Testicular, epididymal structure and function in rats … stream Suckow, M., Weisbroth, S., & Franklin, C. (2005). Sperm are produced in the testes and then are transported by a series of ducts until they exit the penis via the urethra. The reproductive system also supplies nourishment for the offspring after birth and produces female sex hormones. This fluid is released through the penis during ejaculation. Each one of these glands has a duct that joins with the vas deferens to form an ejaculatory duct. endobj x����o�0��#��'tF�량-M��flE-�.�4!B %�D��\�"ڭjX���9�|�������?�Rgg0H��#.��J���u��� Right testis. Male reproductive system parts and main function. ���� JFIF ` ` �� ZExif MM * J Q Q �Q � �� ���� C �v�ml̗a�-�Ea!��a �!�Kn��#��sA�5d˓`��VCl��eib���lz��fJa�<>����Θ��aVVEͤ�"�h]*L �� �LIL�48'� ��apNZ(���:m��V�`��1��h,-�&�b��"$�b�'d��q��qM>��\�i�M���\����q��Y�u3�;�Q���u���)g�Y%5w;X Ӓ|�Ri����4�ՂYl stream View Part 8 - Male Reproductive System Histology.ppt from BIO 59 at Jordan University of Science & Tech. REVIEW:• The main function of the Male Reproductive System is to produce sperm cells and deliver them to the female reproductive system.• It consists of external and internal genital organs which are essential for the continuous reproduction of life. The male rat has 5 pairs of accessory sex glands. The size of the testes in relation to the rat’s body weight will vary between individuals. The caput epididymus is enveloped in fat and leads into the ductus deferens. The vas deferens are long tubular structures in the inguinal canal that run from the epididymus to the urethra. 1998 Jul;275(1):C216-26. SPERM• Function: – To move and carry genetic information to the egg.• Structure: – Head: The large head region of the sperm that contains … Examining the reproductive system of the rat, students have the opportunity to compare male and female organs, study internal fertilization, and observe gestational changes in the female. Some sperm are stored in the epididymis, along with the semen. This is a tightly coiled tube that is responsible for conducting the sperm from the tubule to the vas deferens. The majority of the male reproductive tissues are paired, allowing … <> Ducts known as efferent tubules transport the sperm … Male Reproductive Diagram by Joanne “Bella” Hodges. 65. ",#(7),01444'9=82. The developing sperm travels through the tubules, collecting in the rete testes. The Prepuce. The goal of this study was to determine the effects of BEP, in doses analogous to those given to humans, on the male reproductive system, spermatozoa, fertility, and progeny outcome in an animal model. 5 0 obj They carry the sperm to the penis. Winner of the Standing Ovation Award for “Best PowerPoint Templates” from Presentations Magazine. Male reproductive system presenter: Rose Ikirima MALE REPRODUCTIVE SYSTEM 2 Specific objecives • At … 2 0 obj 3. Male Reproductive system Primary sex organs (two testes) Secondary sex organs (duct system) Accessory sex organs Spermatogenesis (formation of sperm) occurs in the epithelial lining of the seminiferous tubes found within the testes. The product may also serve as an energy source for the sperm. This duct empties into the urethra. (1999). The word baculum means “stick” or “staff” in Latin. Locate the delicate uretersthat attach to the kidney and lead to the bladder. Fipronil is an insecticide widely used in agriculture, veterinary medicine and public health that has recently been listed as a potential endocrine disrupter. This white, creamy material may collect under the prepuce of the penis and is called smegma. They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect. 2. 71. The male rat has 5 pairs of accessory sex glands. Renal arteries and veinssupply the kidneys with blood. Perinatal exposure to insecticide fipronil: effects on the reproductive system in male rats. Testes Produce sperm and sex hormones Epididymides Sites of maturation and some storage of sperm Vas deferens Conduct and store sperm Seminal vesicles Contribute fluid to semen Prostate gland / Bulbourethral glands Contribute fluid to semen Urethra Conducts sperm (and urine) Penis Organ of copulation. METHOD Subjects and Housing The experimental animals were 72 male … Honey supplementation during prenatal restraint stress significantly increased testis and epididymis weights as well as improved the percentages of abnormal spermatozoa and sperm motility in male rat offspring. The secretions of these glands serve to nourish and activate the sperm, to clear the urethral tract prior to ejaculation, serve as a means of transporting the sperm in the female tract, and to create a copulatory plug to help ensure fertilization. This secretion serves to clear the urethra of urine and to lubricate it and the vagina. These are small sebaceous exocrine glands (glands that do not secrete directly into the blood stream). View 12B.Male reproductive system.ppt from NURS 3142 at CUHK. A total of 30 Sprague-Dawley male rats were randomly allotted to three groups, rats were exposed to FA at a dose of 0 (control), 0.5, 2.46 mg/m 3 respectively by inhalation for consecutive 60 days. 66. The main component of the male reproductive system is the testis, suspended in the body cavity by tracheae and the fat body.The more primitive apterygote insects have a single testis, and in some lepidopterans the two maturing testes are secondarily fused into one structure during the later stages of larval development, although the ducts leading from them remain separate. •The surface of the rat cerebrum, as with most lower mammals, is smooth without the complex sulcal pattern seen in humans Endocrine System •Adrenal glands are larger in the female than the male. World's Best PowerPoint Templates - CrystalGraphics offers more PowerPoint templates than anyone else in the world, with over 4 million to choose from. In this paper, we evaluated the male reproductive toxicity of long-term, low-dose formaldehyde exposure in rats, and explored the potential mechanisms. The vagina is the short muscular canal that leads from the female rat’s uterus to the outside of the body. However, within mammals, the size increases when the mating habits are more polygamous than monogamous. Circulatory System: 75. It moisturizes the glans and in a healthy rat has antibacterial and antiviral properties. The pesticide was administered to rats orally at dose levels of 50, 150 and 250 mg/kg/body wt/day for 60 days. Bladder and prostate. Smegma can however form a proteinaceous plug , otherwise termed “penis plug” , that can interfere with urination and/or lead to infection if not removed. The vesicular glands produces a fluid that contains fructose (an energy source for the sperm), as well as secretions that contribute to the mobility and viability of the sperm. Uterus of full-term female. Classwork/Homework Male Reproductive System - Unlike other body systems, the reproductive system is different for males and females In this lesson, you will learn to identify the parts of the male reproductive ... | PowerPoint PPT presentation | free to view 73. The preputial glands are located towards the end of the prepuce (the sheath that covers the penis) that secrete smegma. 4 0 obj The testes are partially covered by the epididymus which consists of 3 regions: the caput epididymus (located at the top), the corpus epididymus (running down one side), and the cauda epididymus (the portion at the bottom of the testes). endstream Testes The primary reproductive organs of the male reproductive system. The Rat Guide and its affiliates accept no responsibility for misuse or misunderstanding of its information. The penis pushes urine and semen through the urethra and out of the body. The prostate gland is a dense gland located behind and slightly below the urinary bladder and is partially wrapped around the penis. Locate these large bean shapedstructures located toward the back of the abdominal cavity on either side ofthe spine. ANATOMY & PHYSIOLOGY •Hearing is highly developed. Part 8 – Male Reproductive System Histology • The internal male genitalia consist of: 1- The main system structures of the female rat are the vagina, ovaries, uterus, and mammary glands. The primary organs ofthe excretory system are the kidneys. The os penis is a single cartilaginous structure (penile bone) that supplies the rigidity for copulation. Cold, C., & Taylor, J. A Layman's Guide to Health, Medication Use, Breeding, and Responsible Care of Pet Rats. It has a length of approximately 20 feet long. The secretions of these glands serve to nourish and activate the sperm, to clear the urethral tract prior to ejaculation, serve as a means of transporting the sperm in the female tract, and to create a copulatory plug to help ensure fertilization. In the current study it was aimed to investigate the toxicity of low doses of imidacloprid (IMI) on the reproductive organ systems of adult male rats. The male reproductive system tissues include testes, epididymides, the various accessory sex glands, and the penis. GSEY��b��.���˼:���k�]2�X��©\8�)@�y8O�,��Ne���aF�_�q@O�*r\�nh�p�3��ݤ#��#��#���j̔��&-�����6�v�/o�t�w)]o�ws��������|������F-�z�:4�Wc�,��Q^�����Vk ʭ7�?�gc� 1 0 obj Both the vesicular glands and the coagulating gland secrete fluids that form the copulatory plug. The rat is representative of mammalian reproduction where fertilization of ova occurs inside the female, and the fertilized zygotes develop in the mother during a gestation period known as pregnancy. Follicles in virtually all stages of development are generally present within the ovaries at all phases of the cycle. Reproductive Biology of the Mouse • Reproductive characteristics • Determining gender • Male & female anatomy and gamete production • Reproductive states in female mice • Estrous cycle – Stage detection – Interruption • Troubleshooting non -productive animals %PDF-1.5 Male urogenital system. It lies below the urethra. Abdominal viscera. After 6 and 9 weeks, males were mated to 2 groups of untreated females. The outer surface of the prepuce is skin and the inner surface is mucosal membrane. 76. <> The penis is sheathed by the prepuce. Male Sprague-Dawley rats were treated daily with BEP for 3 cycles of 3 weeks each, for a total of 9 weeks. The Male Reproductive System | Merck Manual Consumer - YouTube. The side of the glands facing each other is where the coagulating gland is located. The stage of the reproductive cycle cannot easily be determined from the appearance of the ovarian follicles in a species like the rat, which has a short estrous cycle. Throughout the rat’s life the testes are able to move up into the rat’s abdominal cavity as a result of the feature of the rat having an open inguinal canal. Female urogenital system. These tissues exhibit direct and indirect (usually hormonal) pleotrophic pathologic responses, often with a change in one reproductive tissue accompanied by changes in other reproductive tissues. 72. The preputial sac contains desquamated squamous epithelial cells similar to other mucosal cavities such as the oral cavity or vagina. Reproductive organs. Right ovary and Fallopian tube. The prostate glands produce most of the fluids found in semen as well as the fluid that transports the sperm through small ducts to the urethra. 69. Please seek advice and treatment from a qualified Veterinarian if your rat is ill. Our Reproductive System PowerPoint templates include slide designs on Reproductive System, Gynaecology, Gynaecologist, Female Genital System, Male Genital System, Sex Organs, Female Reproductive System, Male Reproductive System, Sexual Reproduction, Genital System, Pregnancy, Fertilizationand many more concepts and categories in the field of Reproductive System. With rats, the testes are larger due to their polygamous mating habits. 1. The primary functions of the male reproductive system are the production of sperm, the transportation of sperm from the testes out of the male body, the placement of sperm into the female’s vagina, and the production of glandular secretions and hormones. Male and Female Reproductive Systems Male Reproductive System It includes both internal and external organs Two main functions: Production and storage of sperm ... – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 77f9d1-YTE4Y Male rats have an os penis also termed the baculum. During sexual arousal … This guide in whole or part, exists solely for the purpose of recognizing and understanding the care and illnesses in the pet rat. Male reproductive organs. Browse … The treatment groups received 0.5 (IMI-0.5), 2 (IMI-2) or 8 mg IMI/kg body weight by oral gavage (IMI-8) for three months. <>/Font<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 959.76 540] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Pregnant female with uterus displayed. 22. Another role of the testes involves the secretion of steroidal hormones such as testosterone, estrone, and progesterone. 70. A study was conducted to asses the effects of malathion on the male reproductive system of wistar rats. The epididymus stores the sperm that have been manufactured within the testes. Female urogenital tract. Identification of estrogen receptors and development of biological radioisotope methods to assess estradiol binding revealed that the male reproductive tract expresses estrogen receptor extensively from the neonatal period to adulthood. In the present research, we examined functioning of the reproductive system of male rats under chronic social stress and cohabitating with females. In comparison to the control rats, there was a significant reduction in the weight of testes, epididymis, seminal vesicle and ventral prostate. endobj Then, male rats were euthanised for assessment on reproductive parameters. The testes (singular: testis) are contained in two separate membranes called scrotal sacs. Pregnant female with uterus in situ. Vagina. In a young rat they descend between 4-6 weeks of age.