The Reproductive System: Part A - Next2Eden

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Role of Sustentacular Cells• Tight junctions divide the wall into twocompartments1. Basal compartment—spermatogonia andprimary spermatocytes2. Adluminal compartment—meiotically activecells and the tubule lumenCopyright © 2010 Pearson Education, Inc.
Basal laminaSpermatogonium(stem cell)Type A daughter cellremains at basal laminaas a stem cellType B daughter cellTight junction betweensustentacular cellsPrimaryspermatocyteSecondaryspermatocytesEarlyspermatidsLate spermatidsCytoplasm of adjacentsustentacular cellsSustentacularcell nucleusSpermatozoaCytoplasmicbridgeLumen ofseminiferoustubule(c) A portion of the seminiferous tublule wall, showing the spermatogeniccells surrounded by sustentacular cells (colored gold)Copyright © 2010 Pearson Education, Inc. Figure 27.7c
Page 1 and 2: PowerPoint ® Lecture Slidesprepare
Page 3 and 4: Reproductive System• Sex hormones
Page 6 and 7: PeritoneumSeminalvesicleAmpulla ofd
Page 8 and 9: The Scrotum• Temperature is kept
Page 10 and 11: The Testes• Sperm are conveyed th
Page 12 and 13: Blood vesselsand nervesSpermatic co
Page 14: Seminiferoustubule(c)Interstitial c
Page 17 and 18: The Penis• External anatomy inclu
Page 19 and 20: The Male Duct System• Epididymis
Page 21 and 22: Blood vesselsand nervesSpermatic co
Page 24 and 25: UreterAmpulla of ductus deferensUri
Page 26 and 27: Accessory Glands: Prostate• Encir
Page 28 and 29: UreterAmpulla of ductus deferensUri
Page 30 and 31: Semen• Alkalinity neutralizes the
Page 32 and 33: Male Sexual Response• Erection:
Page 34 and 35: Copyright © 2010 Pearson Education
Page 36 and 37: Meiosis• Gamete formation involve
Page 38 and 39: MEIOSIS IIProphase IIMetaphase IIMe
Page 40 and 41: Number ofdivisionsSynapsis ofhomolo
Page 42 and 43: Copyright © 2010 Pearson Education
Page 44 and 45: Mitosis of Spermatogonia• Begins
Page 46 and 47: Meiosis: Spermatocytes to Spermatid
Page 48 and 49: Spermiogenesis: Spermatids to Sperm
Page 50 and 51: Approximately 24 daysGolgiapparatus
Page 54 and 55: Role of Sustentacular Cells• Tigh
Page 56 and 57: HPG Axis1. Hypothalamus releases go
Page 58 and 59: 1Anteriorpituitary82GnRHVia portalb
Page 60 and 61: Mechanism and Effects of Testostero

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