reproductive system ppt
TRANSCRIPT
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39-3 The Reproductive System
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Asexual examples: Hydra
Budding of polypsRegenerationof cut pieces
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Amoeba asexual division
2nd amoebaNucleus
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Asexual Reproduction:
Runners in strawberries
Spores in Puffball Mushrooms
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Sexual Reproduction
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“Joey” develops in a Pouch
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Flowering Plants Sexual Reproduction
Dry PollenFor sperm
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Ferns Sexual & Asexual Reproduction
Sexual & Asexual
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The Male Reproductive System
Male Reproductive System
Urinary bladder
Vas deferens
Pubic bone
Urethra
Penis
Seminal vesicle
Rectum
Prostate gland
Bulbourethral gland
Scrotum
Testis
Epididymis
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The Male Reproductive System
A sperm cell consists of:
• a head, which contains the nucleus
• a midpiece, which contains energy-releasing mitochondria
• a tail, which propels the cell forward
Head
Nucleus
Midpiece
Mitochondria
Tail
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Sperm Production (Spermatogenesis)
Video
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Reproduction Hormones
Hormone Produced by Function
Testosterone Testicles Male sex traits
FSH Pituitary Stimulates egg/sperm dvlp
Stimulate estrogen
LH Pituitary Stim. Testosterone
Release of egg, corpus luteum, progesterone
Estrogen Ovaries Female sex traits
Progesterone Corpus luteum Maintains Uterus lining
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Sperm Production Regulation
See p. 53
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The Female Reproductive System
Fallopian tube
Ovary
Uterus
Urinary bladder
Pubic bone
Urethra Vagina
Rectum
Cervix
Female Reproductive System
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The Menstrual Cycle
The Menstrual Cycle
The menstrual cycle is controlled by internal feedback mechanisms between the reproductive system and the endocrine system.
The cycle takes an average of 28 days.
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The Menstrual Cycle
Ovulation
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