Download presentation
Presentation is loading. Please wait.
Published byMarion Osborne Modified over 8 years ago
1
Animal Reproduction Chapter 46
2
Reproduction Asexual 1 parent No gamete fusion May or may not be produced Mitotic division Sexual 2 parents Haploid gametes fuse Egg: large, nonmotile female Sperm: small, motile male Meiosis and mitosis
3
Asexual Reproduction Fission Prokaryotes Budding Hydras Fragmentation Some sea stars & sponges Parthenogenesis Bees, ants, & Komodo dragons
4
Sexual Reproduction Hermaphroditism Self- or cross-fertilization Sequential hermaphroditism Blue-banded gobies Separate sexes External Internal
5
Fertilization ExternalInternal
6
Human Reproductive System Female versus Male
7
Female Reproductive System
9
Male Reproductive Anatomy
11
Gametogenesis
12
Spermatogenesis
13
Oogenesis
14
Variations of Spermatogenesis All 4 meiotic daughters become gametes 1 oocyte develops others degenerate Adolescence through adulthood Mitotic divisions done by birth Mature sperm continuously produced 1 development pre cycle (28 days)
15
Hormonal Control of Spermatogenesis
16
Hormonal Control of Oogenesis
17
Ovarian Cycle
18
Uterine Cycle
19
Menopause
20
Disorders of the Reproductive System Testicular cancer Prostatitis Impotence Cryptorchidism STDs Cervical cancer Amenorrhea Dysmenorrhea Endometriosis Prolapse of the uterus
21
Semen Sperm and glandular secretions Seminal vesicles: nutrients/energy for sperm Prostate gland: nutrients to activate sperm Bulbourethral gland: mucus to neutralize Fluid release before ejaculation Bulbourethral gland neutralizes urine remnants Sperm Pullout method of contraception
22
Sexual Response Physiological Responses: Vasocongestion Myotonia Phases of Sexual Response: Excitement Plateau Orgasm Resolution
23
Contraception
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.