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Lecture

BIOB33H3 Lecture Notes - Seminal Vesicle, Anterior Pituitary, Spermiogenesis


Department
Biological Sciences
Course Code
BIOB33H3
Professor
Connie Soros

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1
Chapter 20 Reproductive System
Basics
- Primary reproductive organs (gonads)
1. major functions
a. produce gametes (gametogenesis)
(1) sperm in male
(2) ova in female
b. secrete sex hormones (androgens & estrogens)
(1) mainly testosterone in male
(2) mainly estrogen & progesterone in female
(3) important in the development of secondary sex characteristics (hair
distribution, body shape, voice change) as well as major reproductive functions
and development
- essential functions in the male
1. spermatogenesis
2. delivery of sperm to female
- essential functions in the female
1. oogenesis
2. receive sperm and transport for fertilization
3. maintain fetus
4. parturition and nourishment of infant
- sex differentiation
Spermatogenesis
- begins at puberty
- parts of sperm
1. head contains DNA
a. acrosome has enzymes to penetrate egg
2. midpiece has mitochondria
3. tail is for movement
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