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Topic: Male reproductive system


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In the News (Thu 18 Oct 18)

  
  Male Reproductive System
The male gamete, or sperm, and the female gamete, the egg or ovum, meet in the female's reproductive system to create a new individual.
Both the male and female reproductive systems are essential for reproduction.
The male sex organs work together to produce and release semen into the reproductive system of the female during sexual intercourse.
www.kidshealth.org /parent/general/body_basics/male_reproductive.html   (2132 words)

  
 Male Reproductive System
Reproduction - the process by which organisms make more organisms like themselves - is one of the things that sets living things apart from nonliving matter.
Unlike the female, whose sex organs are located entirely within the pelvis, the male has reproductive organs, or genitals (pronounced: jeh-nuh-tulz), that are both inside and outside the pelvis.
Alongside the testicles are the epididymis (pronounced: eh-puh-dih-duh-mus) and the vas deferens (pronounced: vass de-fuh-runz), which make up the duct system of the male reproductive organs.
www.kidshealth.org /teen/sexual_health/changing_body/male_repro.html   (935 words)

  
 Reproductive System
Animals’ reproductive systems can be divided into the internal reproductive organs and the external genitalia.
In internal fertilization, the eggs are fertilized within the reproductive tract of the female, and then are covered with eggshells and/or remain within the body of the female during their development.
Males who have not been circumcised need to keep the area between the glans and the prepuce clean so bacteria and/or yeasts don’t start to grow on accumulated secretions, etc. there.
biology.clc.uc.edu /courses/bio105/reproduc.htm   (2386 words)

  
 Reproductive System Information
Sexual reproduction is the process of producing offspring for the survival of the species, and passing on hereditary traits from one generation to the next.
The male and female gonads (testes and ovaries) produce sex cells (ova and sperm) and the hormones necessary for the proper development, maintenance, and functioning of the organs of reproduction and other organs and tissues.
The system structures are the ovary, uterine tubes, uterus, vagina, vulva, and mammary glands.
www.besthealth.com /besthealth/bodyguide/reftext/html/repr_sys_fin.html   (1986 words)

  
 reproductive system. The Columbia Encyclopedia, Sixth Edition. 2001-05
In the human female reproductive system, ova are produced in the ovaries, two small organs set in the pelvic cavity below and to either side of the navel.
In the male reproductive system sperm are produced in the seminiferous tubules of the testes, two organs contained in the scrotum, an external sac in the groin.
Disorders that may affect the proper functioning of the reproductive system include abnormal hormone secretion, sexually transmitted diseases, and the presence of cancerous tissue in the region.
www.bartleby.com /65/re/reprosys.html   (703 words)

  
 From the Cleveland Clinic:Structure and function of the male reproductive system
Unlike the female reproductive system, most of the male reproductive system is located outside of the body.
The entire male reproductive system is dependent on hormones, which are chemicals that regulate the activity of many different types of cells or organs.
The primary hormones involved in the male reproductive system are follicle-stimulating hormone, luteinizing hormone, and testosterone.
www.webmd.com /content/article/46/2953_485.htm?z=2953_00483_6501_00_66   (957 words)

  
 Introductory Anatomy: Excretory & Reproductive Systems
In the male changes are under the influence of the Y chromosome (we know this because of the few unfortunates who don't have one, or who have an unusual number of X chromosomes).
The testes ultimately lie in the scrotum, and the duct system is rearranged to pass from the scrotum back into the abdominal wall, in the inguinal canal, before it unites with the terminal duct of the excretory system, the urethra to enter the penis.
In the male the labia unite in the midline to form the scrotum and part of the penis, the head of which is formed by the genital tubercle.
www.leeds.ac.uk /chb/lectures/anatomy9.html   (1325 words)

  
 Male Fertility and Infertility: the male reproductive system   (Site not responding. Last check: 2007-10-04)
Male Fertility and Infertility: the male reproductive system
In addition to sperm, the testes produce testosterone, a male hormone that is largely responsible for defining and maintaining "male" characteristics.
The male's reproductive tract must have open pathways for the sperm to travel from the testicles, where sperm is produced, out through the penis during ejaculation.
www.fertilitext.org /p4_male/the_male_body.html   (746 words)

  
 The educational encyclopedia, reproductive system, anatomy, male and female reproductive anatomy   (Site not responding. Last check: 2007-10-04)
Human reproduction from a biological standpoint, the purpose of sex is to merge two sets of genetic information, one from the father (sperm) and one from the mother (egg), to make a baby that is genetically different from either parent
Female reproductive system the organs of the female reproductive system are specialized to produce and maintain the female sex cells, or egg cells, to transport these cells to the site of fertilization, to provide a favorable environment for a developing offspring, to move the offspring to the outside, and to produce female sex hormones
Male reproductive system the primary function of the male reproductive system is reproduction, which includes the production of spermatozoa, the transportation of spermatozoa from the testes out of the male body, the secretion by glands, and the placement of spermatozoa in the female reproductive tract.
users.pandora.be /educypedia/education/reproductivesystem.htm   (657 words)

  
 Handbook of Andrology
Knowledge of the anatomy and embryological origins of each of the components of the male reproductive tract is important in developing a basic and thorough understanding of the system as a whole.
The testis is central to the male reproductive system.
Initially formed as the early embryonic excretory system, the mesonephric system is comprised of the longitudinal duct and a series of tubules that branch from the duct toward the developing gonad.
www.andrologysociety.com /resources/handbook/ch.1.asp   (1710 words)

  
 Mother to Daughter   (Site not responding. Last check: 2007-10-04)
Release of a mature ovum from the ovary.
A male gland that produces a fluid which, along with sperm, is one of the components of semen.
Male glands that produce a fluid designed to make sperm more mobile; a component of semen.
www.tampax.com /en_us/pages/m2d_main.shtml?pageid=AR0067   (931 words)

  
 Male Reproductive 1
The primary function of the male reproductive system is reproduction, which includes the production of spermatozoa, the transportation of spermatozoa from the testes out of the male body, the secretion by glands, and the placement of spermatozoa in the female reproductive tract.
A secondary function of the male reproductive system is the production of the male hormones which are responsible for the secondary sex characteristics of the male animal.
The male reproductive system is composed of several distinct organs.
www.cvm.okstate.edu /instruction/mm_curr/histology/MR/himrp1.htm   (275 words)

  
 [Regents Prep Living Environment] Reproduction & Development: Human Reproductive Systems
The structure and function of the human male reproductive system, is very similar to that of many other mammals.
Human reproduction and development are influenced by factors such as gene expression, hormones, and the environment.
The reproductive cycle in both males and females is regulated by several different hormones.
regentsprep.org /Regents/biology/units/reproduction/human.cfm   (606 words)

  
 Male Reproductive System   (Site not responding. Last check: 2007-10-04)
The primary reproductive organs are the testes; these are the organs in which the sperm are made and from which the male reproductive hormones are secreted.
Other organs are needed to make the sperm fully functional and to deliver the sperm to the female reproductive system (for internal fertilization).
Finally, the primary male reproductive organ, the testis, is the one that secretes the male reproductive hormones; therefore, I am linking off of this web page to describe the male reproductive hormones.
distance.stcc.edu /AandP/AP/AP2pages/reprod/male.htm   (272 words)

  
 SignOnSanDiego.com > News > Science -- Immune system may point the way to male contraceptive
The method worked in experiments on male monkeys, most of which regained their fertility when the treatments were stopped, researchers report in Thursday's issue of the journal Science.
That is a protein produced in the testis and epididymis, the tightly coiled ducts that carry sperm.
Male monkeys that developed a strong immune response to the eppin were still able to copulate but could not impregnate females, the researchers said.
www.signonsandiego.com /news/science/20041111-1401-malecontraceptive.html   (570 words)

  
 The male reproductive system
The organs of the male and female reproductive systems are concerned with the process of reproducing offspring, and each organ is adapted to perform specialized tasks.
The primary male sex organs of the reproductive system are the testes.
This hormone is initially responsible for the formation of the male reproductive organs.
www.tpub.com /corpsman/54.htm   (424 words)

  
 Andrology Australia | The Male Body | Anatomy Overview | Male Reproductive System   (Site not responding. Last check: 2007-10-04)
A man's fertility and sexual characteristics are dependent on the normal functioning of the male reproductive system.
The testes are the main male reproductive organ and are crucial for the normal functioning of the male reproductive system.
The penis is the male organ through which the urethra passes and is necessary for urination and sexual intercourse.
www.andrologyaustralia.org /malebody/default/reproductive.htm   (809 words)

  
 Endocrine System 1
In the male, LH is sometimes called interstitial-cell-stimulating hormone because it stimulates the interstitial cells of the testes to produce and secrete the male sex hormone testosterone.
Male hormones, androgens, and female hormones, estrogens, are secreted in minimal amounts in both sexes by the adrenal cortex, but their effect is usually masked by the hormones from the testes and the ovaries.
The gonads, the primary reproductive organs, are the testes in the male and the ovaries in the female.
www.maexamhelp.com /id94.htm   (6204 words)

  
 Reproductive System/ Introduction to the Reproductive System
The major function of the reproductive system is to ensure survival of the species.
Other systems in the body, such as the endocrine and urinary systems, work continuously to maintain homeostasis for survival of the individual.
These hormones function in the maturation of the reproductive system, the development of sexual characteristics, and have important roles in regulating the normal physiology of the reproductive system.
training.seer.cancer.gov /module_anatomy/unit12_1_repdt_intro.html   (187 words)

  
 Winged Wisdom Pet Bird Magazine - The Male Bird Reproductive System- Pet Birds
The avian male reproductive tract is very unique and different from that of humans and mammals.
This hormone is very important in stimulating growth of the male reproductive tract, the development of secondary sexual characteristics such as courtship behavior and aggression and, in chickens, the combs and wattles.
Sperm undergo maturation in the male reproductive tract.
www.birdsnways.com /wisdom/ww33eiv.htm   (639 words)

  
 Reproductive System / Male Reproductive System / Duct System
It is a passageway for sperm and fluids from the reproductive system and urine from the urinary system.
While reproductive fluids are passing through the urethra, sphincters contract tightly to keep urine from entering the urethra.
The male urethra is divided into three regions.
training.seer.cancer.gov /module_anatomy/unit12_2_repdt_male2_duct.html   (489 words)

  
 male reproductive system - is about
The male reproductive system is essential to the perpetuation of life: the female is dependent on the male for fertilization of her egg, even though it is she who carries the offspring through pregnancy and childbirth.
Learn how the male bird reproductive system works and why castration is not recommended.
The reproductive system is arguably the body system that is most influential on life as we know it.
www.angelfire.com /ab8/angelte/21/male-reproductive-system.html   (244 words)

  
 anatomy and physiology of male reproductive system
In order to properly understand the causes and treatment of male infertility it is essential to appreciate the normal anatomy and physiology of male reproduction.
The human male reproductive system includes the hypothalamic-pituitary-gonadals axis, the epididymis, vas deferens, seminal vesicles, prostate and the urethra.
Transport of spermatozoa through the female reproductive tract is very rapid: it takes about 15 minutes to reach abdominal cavity and about 1 hour to reach mature egg.
www.uhmc.sunysb.edu /urology/male_infertility/anatomy_and_physiology_of_male_reproductive_system.html   (772 words)

  
 Prostate Enlargement: Benign Prostatic Hyperplasia   (Site not responding. Last check: 2007-10-04)
The prostate is a walnut-sized gland that forms part of the male reproductive system.
When BPH is suspected, you may be referred to a urologist, a doctor who specializes in problems of the urinary tract and the male reproductive system.
Reproductive system: The bodily systems that allow men and women to have children.
kidney.niddk.nih.gov /kudiseases/pubs/prostateenlargement/index.htm   (4538 words)

  
 Men's Health > The Male Reproductive System
To understand how reproductive hazards affect a man's ability to have healthy children, it is important to understand how the male reproductive system works.
Reproductive hazards may cause the shape of sperm cells to be different.
If a reproductive hazard is carried in the semen, the fetus might be exposed within the uterus, possibly leading to problems with the pregnancy or with the health of the baby after it is born.
www.emaxhealth.com /cms/?m=show&id=1454   (589 words)

  
 Male Reproductive System
Reproduction - the process by which organisms make more organisms like themselves - is one of the things that sets living things apart from nonliving
Unlike the female, whose sex organs are located entirely within the pelvis, the male has reproductive organs, or genitals (pronounced: jeh-nuh-tulz), that are both inside and outside the pelvis.
Alongside the testicles are the epididymis (pronounced: eh-puh-dih-duh-mus) and the vas deferens (pronounced: vass de-fuh-runz), which make up the duct system of the male reproductive organs.
kidshealth.org /teen/sexual_health/changing_body/male_repro.html   (934 words)

  
 the REPRODUCTIVe system
During male arousal, blood flows into the three shafts of spongy erectile tissue inside the penis, causing it to become elongated and erect.
Male condoms are fitted over the erect penis; female condoms are placed inside the vagina.
About 40 of the cases are due to male problems, 40 due to female problems and the remaining 20% are caused by some unknown agent(s).
www.emc.maricopa.edu /faculty/farabee/BIOBK/BioBookREPROD.html   (3069 words)

  
 Your Guide to Uterine Health
The uterus is part of a complex system of tissues and hormones that, together, make up the female reproductive system.
The main parts of the system are the vagina, cervix, uterus, fallopian tubes and ovaries.
But the eggs are just one part of your reproductive system, all designed for the express purpose of creating, carrying and birthing a baby.
www.healthywomen.org /UterineHealthGuide/pages/page3.html   (747 words)

  
 Male Reproductive System   (Site not responding. Last check: 2007-10-04)
The male reproductive system consists of the germinal tissue (seminiferous tubules), a conducting portion (excurrent ducts), and associated glands.
The rete testis connect to the ductuli efferentes that exit the testis proper and connects to the epididymis at the head of the epididymis.
The glands that empty their contents into the excurrent system prior to the post-prostatic urethra contribute to the semen volume and contain elements that nurture the sperm on their treacherous journey to fertilize the egg.
anatomy.iupui.edu /courses/histo_D502/Lab.17.male.repro.f01.html   (1901 words)

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