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Male reproductive system - MS

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  • Chronic tobacco use - Smoking has been shown to affect arterial blood flow and may also affect the arteries in the penis, reducing the blood flow necessary to maintain an erection.
    Diabetes - This is one of the most common causes of impotence, because diabetes can cause changes in blood flow through narrowing of the arteries, or damage to nerve endings in the penis.
    Hormonal Imbalance - Only a small percentage of cases of impotence are due to hormonal problems, such as insufficient testosterone.
    Neurologic Impairment - Injuries to the spinal cord or brain, or neurological diseases, such as Alzheimer's Disease, can lead to impotence. Erectile dysfunction is commonly associated with multiple sclerosis and Parkinson's disease.
    Pelvic Surgery - Surgery or radiation to the prostrate, bladder, rectum or colon can cause nerve damage in the surrounding area. The damage may interfere with signals that must pass between the brain and the sexual organs to allow erection and orgasm.
    Pelvic Trauma - Injuries caused by accidents, particularly accidents associated with bicycle riding, water sports, gymnastics and horseback riding, can cause impotence.
    Prescription Drugs- Many prescription drugs, especially blood pressure or anti-depressant medication, can cause impotence, as well as some over-the-counter medications.
    Psychological - Depression, anxiety, problems with self-esteem, anger, fear, and other mental conditions may lead to impotence.
    Vascular Disease - Vascular diseases such as hardening of the arteries, or heart disease, can lead to reduced blood flow, thereby impairing the ability of the penis to become sufficiently engorged to maintain an erection.
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    • 1. The Male Reproductive System
    • 2. The Male Reproductive System
    • 3. The Male Reproductive System • The pituitary gland releases the gonadotropic hormones _________
    • 4. The Male Reproductive System • The pituitary gland releases the gonadotropic hormones LH and FSH. • These hormones stimulate the testes to begin producing _________
    • 5. The Male Reproductive System • The pituitary gland releases the gonadotropic hormones LH and FSH. • These hormones stimulate the testes to begin producing testosterone and sperm. • Testosterone is the hormone which is responsible for the development of _________
    • 6. The Male Reproductive System • The pituitary gland releases the gonadotropic hormones LH and FSH. • These hormones stimulate the testes to begin producing testosterone and sperm. • Testosterone is the hormone which is responsible for the development of secondary sex characteristics in males.
    • 7. The Male Reproductive System Testosterone Leydig Cells (located in the testes) to produce LH Luteinizing Hormone stimulates the Sperm Seminiferous Tubules (located in the testes) to produce FSH Follicle Stimulating Hormone stimulates the Pituitary Gland produces
    • 8. External Male Reproductive Organs • Penis – Male sexual organ – Serves an important function in _________
    • 9. External Male Reproductive Organs • Penis – Male sexual organ – Serves an important function in sexual reproduction, pleasure, and _________
    • 10. External Male Reproductive Organs • Penis – Male sexual organ – Serves an important function in sexual reproduction, pleasure, and elimination of body wastes
    • 11. External Male Reproductive Organs - Penis • When sexually aroused, the penis becomes _________
    • 12. External Male Reproductive Organs - Penis • When sexually aroused, the penis becomes stiff and enlarged (erect) because _________
    • 13. External Male Reproductive Organs - Penis • When sexually aroused, the penis becomes stiff and enlarged (erect) because its tissues fill with blood. • Although the entire penis is sensitive and sexually excitable, the _________ and _________ are particularly sensitive.
    • 14. External Male Reproductive Organs - Penis • When sexually aroused, the penis becomes stiff and enlarged (erect) because its tissues fill with blood. • Although the entire penis is sensitive and sexually excitable, the glans penis and corona are particularly sensitive.
    • 15. External Male Reproductive Organs - Penis • Erections can occur at any time
    • 16. External Male Reproductive Organs - Penis • Erections can occur at any time • Men have no control over the timing of erections
    • 17. External Male Reproductive Organs - Penis • Erections can occur at any time • Men have no control over the timing of erections • Little baby boys have erections
    • 18. External Male Reproductive Organs - Penis Flaccid means _________
    • 19. External Male Reproductive Organs - Penis Flaccid means soft, limp, lacking firmness
    • 20. External Male Reproductive Organs - Penis Average size when flaccid
    • 21. External Male Reproductive Organs - Penis Average size when flaccid 2-4 inches long Average size when erect (hard or aroused) _________ inches long
    • 22. External Male Reproductive Organs - Penis Average size when flaccid 2-4 inches long Average size when erect (hard or aroused) 5-6 inches long
    • 23. External Male Reproductive Organs - Penis • The penis is neither a muscle nor a bone.
    • 24. External Male Reproductive Organs - Penis
    • 25. External Male Reproductive Organs - Penis
    • 26. External Male Reproductive Organs - Penis • Circumcision – All boys are born with a fold of skin over the end of the penis. – This is called the _________
    • 27. External Male Reproductive Organs - Penis • Circumcision – All boys are born with a fold of skin over the end of the penis. – This is called the foreskin. – A circumcision is _________
    • 28. External Male Reproductive Organs - Penis • Circumcision – All boys are born with a fold of skin over the end of the penis. – This is called the foreskin. – A circumcision is the clipping off of that fold of skin. – Circumcisions are usually performed a few days to a few months after birth.
    • 29. External Male Reproductive Organs - Penis • Circumcisions are performed for _________ and _________ reasons.
    • 30. External Male Reproductive Organs - Penis • Circumcisions are performed for religious and cosmetic reasons.
    • 31. External Male Reproductive Organs - Penis • Circumcisions are performed for religious and cosmetic reasons. • Doctors once performed circumcisions because they believed _________ build up led to disease.
    • 32. External Male Reproductive Organs - Penis • Circumcisions are performed for religious and cosmetic reasons. • Doctors once performed circumcisions because they believed smegma build up led to disease.
    • 33. External Male Reproductive Organs - Penis • Circumcisions are performed for religious and cosmetic reasons. • Doctors once performed circumcisions because they believed smegma build up led to disease. • Smegma may cause irritation and infection if the penis is not _________ on a regular basis.
    • 34. External Male Reproductive Organs - Penis • Circumcisions are performed for religious and cosmetic reasons. • Doctors once performed circumcisions because they believed smegma build up led to disease. • Smegma may cause irritation and infection if the penis is not cleaned on a regular basis.
    • 35. External Male Reproductive Organs - Penis • According to the World Health Organization (WHO), global estimates suggest that 30% of males are circumcised, of whom 68% are Muslim. • Based on the statement above, what percentage of non-Muslim males are circumcised?
    • 36. External Male Reproductive Organs - Penis • Only 9.6% non-Muslim males are circumcised. • 90.4% of non-Muslim males in the world are uncircumcised. • Only 56% of American males are circumcised.
    • 37. External Male Reproductive Organs – Penis Circumcision Worldwide
    • 38. Circumcision Worldwide
    • 39. External Male Reproductive Organs – Penis Circumcision in America
    • 40. External Male Reproductive Organs - Penis
    • 41. External Male Reproductive Organs - Penis • Routine circumcisions are not supported by the American Academy of Pediatrics (AAP).
    • 42. Circumcision
    • 43. Injection of lidocaine into dorsum of penis
    • 44. Circumcision
    • 45. Circumcision
    • 46. Circumcision
    • 47. Circumcision
    • 48. Circumcision
    • 49. Circumcision
    • 50. Circumcision
    • 51. Circumcision Related Infant Deaths • In 2010, researchers estimated a circumcision death rate of 9.01 per 100,000 or 117 per year in the United States. • Bollinger, Dan; Boy's Health Advisory (2010-04-26). "Lost Boys: An Estimate of U.S. Circumcision-Related Infant Deaths"
    • 52. • Watch “Look just like Dad, by matching genitalia?” • http://www.youtube.com/watch? v=XcIf6xRFPpw&feature=related
    • 53. External Male Reproductive System - Scrotum Loose pouch of skin that contains the _________ and _________
    • 54. External Male Reproductive System - Scrotum Loose pouch of skin that contains the testes and spermatic cords -wrinkled and covered with pubic hair
    • 55. External Male Reproductive System - Scrotum • The temperature of the testicles must be _________ degrees lower than the temperature of the body in order for sperm production to occur.
    • 56. External Male Reproductive System - Scrotum • The temperature of the testicles must be 3-5 degrees lower than the temperature of the body in order for sperm production to occur.
    • 57. External Male Reproductive System - Scrotum • The Cremaster Muscle controls _________
    • 58. External Male Reproductive System - Scrotum • The Cremaster Muscle controls scrotal sac length • Thereby regulating the temperature of the _________
    • 59. External Male Reproductive System - Scrotum • The Cremaster Muscle controls scrotal sac length • Thereby regulating the temperature of the testes
    • 60. External Male Reproductive System - Scrotum • Contracting to draw them up toward the body when the body is _________
    • 61. External Male Reproductive System - Scrotum • Contracting to draw them up toward the body when the body is cold
    • 62. External Male Reproductive System - Scrotum Contracting to draw them up toward the body when the body is cold Relaxing to let them hang lower away from the body when the body is _________
    • 63. External Male Reproductive System - Scrotum Contracting to draw them up toward the body when the body is cold Relaxing to let them hang lower away from the body when the body is hot
    • 64. Sterility • A condition which a person is unable to reproduce – Less than 60 million sperm per healthy ejaculate
    • 65. Sterility • A condition which a person is unable to reproduce – Less than 60 million sperm per healthy ejaculate • Wearing _________ clothing may cause temporary sterility in males
    • 66. Sterility • A condition which a person is unable to reproduce – Less than 60 million sperm per healthy ejaculate • Wearing tight clothing may cause temporary sterility in males
    • 67. Sperm • The male reproductive cell
    • 68. Sperm • The male reproductive cell • Fertile male - 200 million sperm per healthy ejaculate
    • 69. Sperm • The male reproductive cell • Fertile male - 200 million sperm per healthy ejaculate • Marijuana, cocaine and cigarette use may decrease chances of fertilizing an by 50%
    • 70. Sperm • One spoonful of semen contains 100 to 500 million sperm • Only _________ sperm will fertilize the female’s egg
    • 71. Sperm • One spoonful of semen contains 100 to 500 million sperm • Only one sperm will fertilize the female’s egg • Each normal sperm cell carries _________ chromosomes
    • 72. Sperm • One spoonful of semen contains 100 to 500 million sperm • Only one sperm will fertilize the female’s egg • Each normal sperm cell carries 23 chromosomes
    • 73. Sperm Characteristics • _________ - speed and ability to move
    • 74. Sperm Characteristics • Motility - speed and ability to move
    • 75. Sperm Characteristics • Motility - speed and ability to move • _________ - number of diseased sperm
    • 76. Sperm Characteristics • Motility - speed and ability to move • Morbidity - number of diseased sperm
    • 77. Sperm Characteristics • Motility - speed and ability to move • Morbidity - number of diseased sperm • _________ - number of dead sperm
    • 78. Sperm Characteristics • Motility - speed and ability to move • Morbidity - number of diseased sperm • Mortality - number of dead sperm
    • 79. The Male Reproductive System
    • 80. Internal Male Reproductive System • Testes (Testicles) -
    • 81. Internal Male Reproductive System • Testes (Testicles) - two small _________
    • 82. Internal Male Reproductive System • Testes (Testicles) - two small glands that produce _________
    • 83. Internal Male Reproductive System • Testes (Testicles) - two small glands that produce sperm • The left testicle normally _________ than the right.
    • 84. Internal Male Reproductive System • Testes (Testicles) - two small glands that produce sperm • The left testicle normally hangs lower than the right.
    • 85. Internal Male Reproductive System - Testicles • The testicles are suspended from the _________
    • 86. Internal Male Reproductive System - Testicles • The testicles are suspended from the spermatic cords. • The spermatic cords contain the _________ , _________ , _________ and _________
    • 87. Internal Male Reproductive System - Testicles • The testicles are suspended from the spermatic cords. • The spermatic cords contain the vas deferens, blood vessels, nerves and muscle fibers.
    • 88. Internal Male Reproductive System - Testicles
    • 89. Internal Male Reproductive System - Seminiferous Tubules • Section of the testes where sperm are _________
    • 90. Internal Male Reproductive System - Seminiferous Tubules • Section of the testes where sperm are produced • Long threadlike tubes
    • 91. Internal Male Reproductive System - Seminiferous Tubules • Section of the testes where sperm are produced • Long threadlike tubes • Approximately _________ , each is one to three feet long
    • 92. Internal Male Reproductive System - Seminiferous Tubules • Section of the testes where sperm are produced • Long threadlike tubes • Approximately one thousand tubes, each is one to three feet long • Combined length can extend over a _________
    • 93. Internal Male Reproductive System - Seminiferous Tubules • Section of the testes where sperm are produced • Long threadlike tubes • Approximately one thousand tubes, each is one to three feet long • Combined length can extend over a quarter mile
    • 94. Internal Male Reproductive System - Epididymis • Stores _________
    • 95. Internal Male Reproductive System - Epididymis • Stores sperm • Approximately _________ in length
    • 96. Internal Male Reproductive System - Epididymis • Stores sperm • Approximately twenty feet in length
    • 97. Internal Male Reproductive System -Leydig Cells • Located in the _________
    • 98. Internal Male Reproductive System -Leydig Cells • Located in the testicles • Produce _________
    • 99. Internal Male Reproductive System -Leydig Cells • Located in the testicles • Produce testosterone
    • 100. Internal Male Reproductive System - Vas Deferens • Two tubes approximately _________
    • 101. Internal Male Reproductive System - Vas Deferens • Two tubes approximately 18 inches long • Connect the _________ with the __________
    • 102. Internal Male Reproductive System - Vas Deferens • Two tubes approximately 18 inches long • Connect the _________ with the urethra
    • 103. Internal Male Reproductive System - Vas Deferens • Two tubes approximately 18 inches long • Connect the epididymis with the urethra • The vas deferens are lined with _________
    • 104. Internal Male Reproductive System - Vas Deferens • Two tubes approximately 18 inches long • Connect the epididymis with the urethra • The vas deferens are lined with cilia
    • 105. Cilia • Fingerlike projections located in the vas deferens that help move _________ through the tube.
    • 106. Cilia • Fingerlike projections located in the vas deferens that help move sperm through the tube.
    • 107. Vasectomy
    • 108. Vasectomy
    • 109. Vasectomy • Surgical procedure to _________
    • 110. Vasectomy • Surgical procedure to sterilize males
    • 111. Vasectomy • The surgeon will make an incision on the _________, remove a section of the _________ and stitch that area.
    • 112. Vasectomy • The surgeon will make an incision on the scrotal sac, remove a section of the _________ and stitch that area.
    • 113. Vasectomy • The surgeon will make an incision on the scrotal sac, remove a section of the vas deferens and stitch that area.
    • 114. Vasectomy • It is the most common form of male contraception in the United States, and more than 500,000 men have a vasectomy each year.
    • 115. Vasectomy • It is safe, highly effective, and has no impact on erection or sexual performance.
    • 116. Vasectomy • You will be asked to bring one or more specimens of semen to your follow-up visit to verify the success of the procedure.
    • 117. Vasectomy • Most doctors suggest a minimum of 3 to 4 months, and advise a minimum of 20 ejaculations before performing the first semen analysis.
    • 118. Vasectomy
    • 119. • Watch http://video.about.com/contraception/Vasectomy.
    • 120. Impotence • The inability of a sexually mature male to _________
    • 121. Impotence • The inability of a sexually mature male to maintain an erection long enough to _________
    • 122. Impotence • The inability of a sexually mature male to maintain an erection long enough to have an ejaculation. • May be due to lack of _________
    • 123. Impotence • The inability of a sexually mature male to maintain an erection long enough to have an ejaculation. • May be due to lack of sexual desire, _________
    • 124. Impotence • The inability of a sexually mature male to maintain an erection long enough to have an ejaculation. • May be due to lack of sexual desire, inability or _________ .
    • 125. Impotence • The inability of a sexually mature male to maintain an erection long enough to have an ejaculation. • May be due to lack of sexual desire, inability or erectile dysfunction.
    • 126. • Watch http://video.about.com/menshealth/Impotence.htm
    • 127. Possible Causes of Erectile Dysfunction • Chronic tobacco use • Diabetes • Being overweight • Avoiding exercise • Hormonal Imbalance • Neurologic Impairment • Pelvic Surgery • Pelvic Trauma • Prescription Drugs • Psychological • Vascular Disease
    • 128. • Watch http://video.about.com/infertility/Erectile-Dysfun
    • 129. Internal Male Reproductive System - Seminal Vesicles • Two little pouches near the prostate gland which secrete a fluid to help _________
    • 130. Internal Male Reproductive System - Seminal Vesicles • Two little pouches near the prostate gland which secrete a fluid to help provide nourishment to the sperm
    • 131. Internal Male Reproductive System - Prostate Gland • Lies below _________
    • 132. Internal Male Reproductive System - Prostate Gland • Lies below the bladder and is about the size of a chestnut.
    • 133. Internal Male Reproductive System - Prostate Gland • Lies below the bladder and is about the size of a chestnut. • Secretes a milky fluid which _________
    • 134. Internal Male Reproductive System - Prostate Gland • Lies below the bladder and is about the size of a chestnut. • Secretes a milky fluid which protects the sperm.
    • 135. Internal Male Reproductive System - Prostate Gland
    • 136. Prostate Cancer - Digital Rectal Exam Prostate cancer affects 1 in 6 men The PSA Blood Test, Transrectal Ultrasound and Digital Rectal Exam are used to detect the presence of cancer.
    • 137. Transrectal Ultrasound
    • 138. Prostate Cancer - Digital Rectal Exam PSA is a protein produced by the prostate and released in very small amounts into the bloodstream. When Prostate cancer develops and grows more PSA is released into the blood stream.
    • 139. • http://video.about.com/prostatecancer/Prostate-Ca
    • 140. Internal Male Reproductive System - Cowper’s Gland • Two pea sized glands located below _________
    • 141. Internal Male Reproductive System - Cowper’s Gland • Two pea sized glands located below the prostate
    • 142. Internal Male Reproductive System - Cowper’s Gland • Two pea sized glands located below the prostate • Secretes a clear sticky fluid that _________
    • 143. Internal Male Reproductive System - Cowper’s Gland • Two pea sized glands located below the prostate • Secretes a clear sticky fluid that cleans the urethra of urine
    • 144. Urethra • Tube like organ that travels _________
    • 145. Urethra • Tube like organ that travels through the penis
    • 146. Urethra • Tube like organ that travels through the penis • Both urine and sperm pass through the urethra but _________
    • 147. Urethra • Tube like organ that travels through the penis • Both urine and sperm pass through the urethra but never at the same time
    • 148. Semen • A mixture of sperm and fluids from the
    • 149. Semen • A mixture of sperm and fluids from the – seminal vesicles
    • 150. Semen • A mixture of sperm and fluids from the – seminal vesicles – prostate gland
    • 151. Semen • A mixture of sperm and fluids from the – seminal vesicles – prostate gland – cowper's gland
    • 152. Masturbation • Self stimulation to the point of ejaculation.
    • 153. Masturbation • Self stimulation to the point of ejaculation. • According to former Surgeon General Joycelyn Elders : “[Masturbation] never got anybody pregnant,” she said, “and you know you’re always having sex with somebody you love.”
    • 154. Former Surgeon General Joycelyn Elders • In 1994, she was invited to speak at a United Nations conference on AIDS. She was asked whether it would be appropriate to promote masturbation as a means of preventing young people from engaging in riskier forms of sexual activity.
    • 155. Former Surgeon General Joycelyn Elders • She replied, "I think that it is part of human sexuality, and perhaps it should be taught.”
    • 156. Former Surgeon General Joycelyn Elders • She replied, "I think that it is part of human sexuality, and perhaps it should be taught." This remark caused great controversy, especially among conservative Christian groups and right wing interests in the United States. President Clinton asked for her resignation.
    • 157. Former Surgeon General Joycelyn Elders • "We know that more than 70-80% of women masturbate, and 90% of men masturbate, and the rest lie."
    • 158. Nocturnal Emission • Wet Dream • An ejaculation that takes place in males during puberty while asleep. • Occurs because of the build up of semen. • Sometimes it is accompanied by a dream with sexual content
    • 159. Testicular Cancer • One of the most common cancers in men between the ages of 15 and 34.
    • 160. Testicular Cancer • If discovered in the early stages, testicular cancer can be treated promptly and effectively.
    • 161. Testicular Cancer • Men who have an undescended or partially descended testicle are at much higher risk.
    • 162. Undescended Testicle
    • 163. Testicular Cancer • The first sign of testicular cancer is usually a slight enlargement of one of the testes.
    • 164. Testicular Cancer • Pain may be absent but usually there is a dull ache in the lower abdomen and groin.
    • 165. Testicular Self Examination (TSE) • Early detection can be done with a simple three minute monthly examination. • The best time is after a warm bath or shower when the scrotal sac is relaxed.
    • 166. Testicular Self Examination (TSE) • The male rolls each testicle gently between the thumb and fingers of both hands. If there are any hard lumps the person should see a doctor immediately.
    • 167. Hydrocele A hydrocele is a collection of fluid inside the area of the scrotum, surrounding the testicle. Hydroceles are common in newborn infants and normally resolve after a few months after birth. The main symptom is a painless, swollen testicle, on one or both sides, which feels like a water-filled balloon. Hydroceles are usually not dangerous, and they are usually only treated when they cause discomfort or embarrassment, or they get so large that they threaten the blood supply of the testicle.
    • 168. Circumcise Me?!