logging in or signing up HUMAN REPRODUCTIVE SYSTEM chiradeee Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 2588 Category: Entertainment License: All Rights Reserved Like it (7) Dislike it (0) Added: July 03, 2010 This Presentation is Public Favorites: 3 Presentation Description No description available. Comments Posting comment... By: saeid321 (7 month(s) ago) tnx Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript THE HUMAN REPRODUCTIVE SYSTEM : THE HUMAN REPRODUCTIVE SYSTEM MALE REPRODUCTIVE SYSTEM : MALE REPRODUCTIVE SYSTEM THE MALE SEX GLANDS OR MALE REPRODUCTIVE ORGANS ARE TWO : TESTES OR TESTICLES WHICH ARE OVAL BODIESCONSISTING OF FINE TUBULES, ENCLOSED IN A TOUGH, FIBROUS SHEATH. Slide 6: SEMINIFEROUS TUBULES – PRODUCES SPERMS OR SPERMATOZOA. EPIDIDYMIS – A TEMPORARY STORAGE PLACE OF SPERMS. Slide 7: TESTOSTERONE - MALE SEX HORMONE, WHICH CONTROLS THE DEVELOPMENT OF SECONDARY SEX CHARACTERISTICS. VAS DEFERENS – RECEIVES THE SPERM CELLS FROM THE EPIDIDYMIS, CARRIES THEM UP, AND DELIVERS THEM INTO THE URETHRA. Slide 8: SEMINAL VESICLE – A GLAND THAT PRODUCES PART OF THE SEMINAL SECRETION. SCROTUM – THE POUCH CONTAINING THE TESTES. PROSTATE GLANDS – PRODUCES A THIN, WATERY, ALKALINE SECRETION THAT MIXES WITH THE SPERM CELLS AND OTHER SECRETION TO FORM THE SEMEN. Slide 9: PENIS – IS A MASS OF ERECTILE TISSUE ( BLOOD SPACES SURROUNDED BY A FIBROUS CASE). FORESKIN OR PREPUCE – COVERS THE SENSITIVE HEAD OF THE PENIS. - IS OFTEN SO LONG AND TIGHT IN NEWBORN BOYS THAT IT CANNOT BE PULLED BACK TO CLEANSE THE PENIS PROPERLY. THE HUMAN SPERM CELL ( SPERMATOZOA) : THE HUMAN SPERM CELL ( SPERMATOZOA) THE HUMAN SPERM SPERM CONSISTS OF FOUR MAJOR PARTS: HEAD – IS FLATTENED, OVAL SHAPED PART THAT IS PROPELLED BY THE LASHING MOTION OF THE TAIL. PIECE TAIL Slide 15: WHEN THE SPERM PENETRATES AN OVUM DURING THE FERTILIZATION, THE TAIL SEPARATES FROM THE REST OF THE SPERM. THE HEAD AND CONNECTING PIECE ENTER THE OVUM AND ZYGOTE IS FORMED. SPERM PRODUCTION AND THE SEMINAL FLUID : SPERM PRODUCTION AND THE SEMINAL FLUID SERTOLI CELL – SUPPORTING CELL, NOURISHES THE DEVELOPING SPERM CELL INSIDE THE SEMINIFEROUS TUBULE. FLAGELLUM – MAKES SPERM MOVEMENT POSSIBLE. ACROSOME – FILLED WITH SPECIAL DISSOLVING ENZYMES, AND WHICH ALLOWS THE SPERM TO PENETRATE THE EGG. ORGANS FOR SPERM PRODUCTION : ORGANS FOR SPERM PRODUCTION TESTES – PRIMARY MALE REPRODUCTIVE ORGANS. SEMINIFEROUS TUBULES – FOUND INSIDE THE TESTES, KNOWN AS THE SPERM – BEARING TUBULES. SPERMATOGONIA – SPERM PRODUCING CELLS FOUND IN THE TUBULE WALLS, CONTAINING 46 CHROMOSOMES IMMATURE SPERM CELLS. Slide 18: SERTOLI CELLS – SUPPORTING CELLS FOUND IN TUBULE WALLS. LUDWIG CELLS – FOUND AROUND THE TUBULE, PRODUCE TESTOSTERONE AND OTHER MALE HORMONES. EPIDIDYMIS – NARROW TUBE, FOUND ON TOP OF THE TESTES; WHERE SPERM CELLS ARE COLLECTED; WHERE CELLS MATURE FINALLY AND BECOME READY FOR TRANSPORT. ORGANS FOR SPERM TRANSPORT : ORGANS FOR SPERM TRANSPORT VAS DEFERENS – CONNECTING TUBE THAT CONTINUE TO PROPEL THE SPERM. EJACULATORY DUCT – DUCT LEADING FROM THE SEMINAL VESICLE. PROSTATE GLAND URETHRA Slide 20: BULBORETHRAL ( COWPER’S) GLAND – SECRETES MUCUS–LIKE LUBRICATING SUBSTANCE. PENIS – CYLINDRICAL ORAN THROUGH WHICH SPERM AND URINE EXIT THE BODY; TRANSFERS SPERM TO THE FEMALE ORGAN. Slide 21: SEMINAL FLUID – IS SECRETED BY THE GLANDS DESCRIBED BY THE GLANDS DISCUSSED EARLIER ON THE PREVIOUS SLIDE. EVERYTIME A MAN EJACULATES, HE RELEASES BETWEEN 3 TO 4 MILLILITERS OF FLUID, WHICH CONTANS APPROXIMATELY 500 MILLION SPERM CELLS. THIS FLUID IS ALSO CALLED AS SEMEN AND HELPS IN THE MOBILITY OF SPERM CELLS BY ACTING AS A “ SWIMMING MEDIUM”. Slide 22: TO DEVELOP PROPERLY, SPERM MUST HAVE AN ENVIRONMENT SEVERAL DEGREES COOLER THAN NORMAL BODY TEMPERATURES, 37°C OR 98°F. AT BODY TEMPERATURE, SURVIVAL TIME OF SPERM CELLS IS 24 TO 72 HOURS. THEY CAN BE PRESERVED THOUGH AT - 100°C. MALE HORMONES AND THEIR FUNCTIONS : MALE HORMONES AND THEIR FUNCTIONS ANDROSTERONE AND TESTOSTERONE : STIMULATE SPERMATOGENESIS ( SPERM PRODUCTION), INFLUENCE DEVELOPMENT OF SECONDARY SEX CHARACTERISTICS ( GROWTH OF BODY HAIR, LOWERING OF VOICE, ETC.), Slide 24: STIMULATE MATURATION OF THE BODY OILS (LINKED TO DEVELOPMENT OF ACNE IN MALES AT PUBERTY), AND ARE USED IN PRODUCING ANABOLIC STEROIDS (STRENGTH-BUILDING DRUGS FOR ATHLETES). Slide 25: GONADOTROPIC HORMONES – REGULATES FUNCTIONS OF TESTES. MALE FSH [FOLLICLE – STIMULATING HORMONE] STIMULATES SPERM PRODUCTION. MALE LH [ LEUTEINIZING HORMONE] – PROMOTES TESTOSTERONE PRODUCTION. GnRH [ GONADOTROPIC-RELEASING HORMONE] – ACTIVATES PITUITARY GLAND TO SECRETE AND RELEASE FSH AND LH. Slide 26: ANY QUESTIONS? You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
HUMAN REPRODUCTIVE SYSTEM chiradeee Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 2588 Category: Entertainment License: All Rights Reserved Like it (7) Dislike it (0) Added: July 03, 2010 This Presentation is Public Favorites: 3 Presentation Description No description available. Comments Posting comment... By: saeid321 (7 month(s) ago) tnx Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript THE HUMAN REPRODUCTIVE SYSTEM : THE HUMAN REPRODUCTIVE SYSTEM MALE REPRODUCTIVE SYSTEM : MALE REPRODUCTIVE SYSTEM THE MALE SEX GLANDS OR MALE REPRODUCTIVE ORGANS ARE TWO : TESTES OR TESTICLES WHICH ARE OVAL BODIESCONSISTING OF FINE TUBULES, ENCLOSED IN A TOUGH, FIBROUS SHEATH. Slide 6: SEMINIFEROUS TUBULES – PRODUCES SPERMS OR SPERMATOZOA. EPIDIDYMIS – A TEMPORARY STORAGE PLACE OF SPERMS. Slide 7: TESTOSTERONE - MALE SEX HORMONE, WHICH CONTROLS THE DEVELOPMENT OF SECONDARY SEX CHARACTERISTICS. VAS DEFERENS – RECEIVES THE SPERM CELLS FROM THE EPIDIDYMIS, CARRIES THEM UP, AND DELIVERS THEM INTO THE URETHRA. Slide 8: SEMINAL VESICLE – A GLAND THAT PRODUCES PART OF THE SEMINAL SECRETION. SCROTUM – THE POUCH CONTAINING THE TESTES. PROSTATE GLANDS – PRODUCES A THIN, WATERY, ALKALINE SECRETION THAT MIXES WITH THE SPERM CELLS AND OTHER SECRETION TO FORM THE SEMEN. Slide 9: PENIS – IS A MASS OF ERECTILE TISSUE ( BLOOD SPACES SURROUNDED BY A FIBROUS CASE). FORESKIN OR PREPUCE – COVERS THE SENSITIVE HEAD OF THE PENIS. - IS OFTEN SO LONG AND TIGHT IN NEWBORN BOYS THAT IT CANNOT BE PULLED BACK TO CLEANSE THE PENIS PROPERLY. THE HUMAN SPERM CELL ( SPERMATOZOA) : THE HUMAN SPERM CELL ( SPERMATOZOA) THE HUMAN SPERM SPERM CONSISTS OF FOUR MAJOR PARTS: HEAD – IS FLATTENED, OVAL SHAPED PART THAT IS PROPELLED BY THE LASHING MOTION OF THE TAIL. PIECE TAIL Slide 15: WHEN THE SPERM PENETRATES AN OVUM DURING THE FERTILIZATION, THE TAIL SEPARATES FROM THE REST OF THE SPERM. THE HEAD AND CONNECTING PIECE ENTER THE OVUM AND ZYGOTE IS FORMED. SPERM PRODUCTION AND THE SEMINAL FLUID : SPERM PRODUCTION AND THE SEMINAL FLUID SERTOLI CELL – SUPPORTING CELL, NOURISHES THE DEVELOPING SPERM CELL INSIDE THE SEMINIFEROUS TUBULE. FLAGELLUM – MAKES SPERM MOVEMENT POSSIBLE. ACROSOME – FILLED WITH SPECIAL DISSOLVING ENZYMES, AND WHICH ALLOWS THE SPERM TO PENETRATE THE EGG. ORGANS FOR SPERM PRODUCTION : ORGANS FOR SPERM PRODUCTION TESTES – PRIMARY MALE REPRODUCTIVE ORGANS. SEMINIFEROUS TUBULES – FOUND INSIDE THE TESTES, KNOWN AS THE SPERM – BEARING TUBULES. SPERMATOGONIA – SPERM PRODUCING CELLS FOUND IN THE TUBULE WALLS, CONTAINING 46 CHROMOSOMES IMMATURE SPERM CELLS. Slide 18: SERTOLI CELLS – SUPPORTING CELLS FOUND IN TUBULE WALLS. LUDWIG CELLS – FOUND AROUND THE TUBULE, PRODUCE TESTOSTERONE AND OTHER MALE HORMONES. EPIDIDYMIS – NARROW TUBE, FOUND ON TOP OF THE TESTES; WHERE SPERM CELLS ARE COLLECTED; WHERE CELLS MATURE FINALLY AND BECOME READY FOR TRANSPORT. ORGANS FOR SPERM TRANSPORT : ORGANS FOR SPERM TRANSPORT VAS DEFERENS – CONNECTING TUBE THAT CONTINUE TO PROPEL THE SPERM. EJACULATORY DUCT – DUCT LEADING FROM THE SEMINAL VESICLE. PROSTATE GLAND URETHRA Slide 20: BULBORETHRAL ( COWPER’S) GLAND – SECRETES MUCUS–LIKE LUBRICATING SUBSTANCE. PENIS – CYLINDRICAL ORAN THROUGH WHICH SPERM AND URINE EXIT THE BODY; TRANSFERS SPERM TO THE FEMALE ORGAN. Slide 21: SEMINAL FLUID – IS SECRETED BY THE GLANDS DESCRIBED BY THE GLANDS DISCUSSED EARLIER ON THE PREVIOUS SLIDE. EVERYTIME A MAN EJACULATES, HE RELEASES BETWEEN 3 TO 4 MILLILITERS OF FLUID, WHICH CONTANS APPROXIMATELY 500 MILLION SPERM CELLS. THIS FLUID IS ALSO CALLED AS SEMEN AND HELPS IN THE MOBILITY OF SPERM CELLS BY ACTING AS A “ SWIMMING MEDIUM”. Slide 22: TO DEVELOP PROPERLY, SPERM MUST HAVE AN ENVIRONMENT SEVERAL DEGREES COOLER THAN NORMAL BODY TEMPERATURES, 37°C OR 98°F. AT BODY TEMPERATURE, SURVIVAL TIME OF SPERM CELLS IS 24 TO 72 HOURS. THEY CAN BE PRESERVED THOUGH AT - 100°C. MALE HORMONES AND THEIR FUNCTIONS : MALE HORMONES AND THEIR FUNCTIONS ANDROSTERONE AND TESTOSTERONE : STIMULATE SPERMATOGENESIS ( SPERM PRODUCTION), INFLUENCE DEVELOPMENT OF SECONDARY SEX CHARACTERISTICS ( GROWTH OF BODY HAIR, LOWERING OF VOICE, ETC.), Slide 24: STIMULATE MATURATION OF THE BODY OILS (LINKED TO DEVELOPMENT OF ACNE IN MALES AT PUBERTY), AND ARE USED IN PRODUCING ANABOLIC STEROIDS (STRENGTH-BUILDING DRUGS FOR ATHLETES). Slide 25: GONADOTROPIC HORMONES – REGULATES FUNCTIONS OF TESTES. MALE FSH [FOLLICLE – STIMULATING HORMONE] STIMULATES SPERM PRODUCTION. MALE LH [ LEUTEINIZING HORMONE] – PROMOTES TESTOSTERONE PRODUCTION. GnRH [ GONADOTROPIC-RELEASING HORMONE] – ACTIVATES PITUITARY GLAND TO SECRETE AND RELEASE FSH AND LH. Slide 26: ANY QUESTIONS?