1. Male Reproductive Anatomy (Front View)
Seminal vesicle (behind bladder)
(Urinary bladder)
Prostate gland
Bulbourethral gland
Urethra
Erectile tissue of penis
Scrotum
Vas deferens
Epididymis
Testis

2. Male Reproductive Anatomy (Side View)
(Urinary bladder)
(Urinary duct)
Seminal vesicle
(Rectum)
(Pubic bone)
Vas deferens
Erectile tissue
Ejaculatory duct
Prostate gland
Urethra
Penis
Bulbourethral gland
Glans
Vas deferens
Epididymis Testis Scrotum
Prepuce

3. Female Reproductive Anatomy (Front View)
Oviduct
Ovaries
Follicles
Corpus luteum
Uterine wall
Uterus
Endometrium
Cervix
Vagina

4. Female Reproductive Anatomy (Side View)
Oviduct
Ovary
Uterus
(Urinary bladder)
(Rectum)
(Pubic bone)
Cervix
Urethra
Vagina
Shaft
Glans
Clitoris
Prepuce
Labia minora
Labia majora
Vaginal opening

5. Spermatogenesis Epididymis Seminiferous tubule Testis
Cross section of seminiferous tubule
Primordial germ cell in embryo
Mitotic divisions
Sertoli cell nucleus
Spermatogonial stem cell 2n
Mitotic divisions
Spermatogonium 2n
Mitotic divisions
Primary spermatocyte 2n
Meiosis I
Lumen of seminiferous tubule
Secondary spermatocyte n n
Meiosis II
Neck
Spermatids (at two stages of differentiation)
Early spermatid n n n n
Tail
Midpiece
Head
Plasma membrane
Differentiation (Sertoli cells provide nutrients)
Mitochondria
Sperm n n n n
Nucleus
Acrosome

6. Spermatogenesis (Expanded View)
Epididymis
Seminiferous tubule
Sertoli cell nucleus
Spermatogonium
Testis
Primary spermatocyte
Cross section of seminiferous tubule
Secondary spermatocyte
Spermatids (two stages)
Lumen of seminiferous tubule
Sperm

7. Spermatogenesis Primordial germ cell in embryo Mitotic divisions
Spermatogonial stem cell 2n
Mitotic divisions
Spermatogonium 2n
Mitotic divisions
Primary spermatocyte 2n
Meiosis I
Secondary spermatocyte n n
Meiosis II
Early spermatid n n n n
Differentiation (Sertoli cells provide nutrients)
Sperm n n n n

8. Anatomy of Spermatozoon
Neck
Tail
Midpiece
Head
Plasma membrane
Mitochondria
Nucleus
Acrosome

9. Oogenesis 2n 2n n n n n Ovary Primary oocyte within follicle In embryo
Growing follicle
Primordial germ cell
Mitotic divisions 2n
Oogonium
Mitotic divisions
Primary oocyte (present at birth), arrested in prophase of meiosis I 2n
Mature follicle
Ruptured follicle
Completion of meiosis I and onset of meiosis II
First polar body n n
Secondary oocyte, arrested at metaphase of meiosis II
Ovulated secondary oocyte
Ovulation, sperm entry
Completion of meiosis II
Second polar body
Corpus luteum n n
Fertilized egg
Degenerating corpus luteum

10. Oogenesis (Expanded View)
Ovary
Ruptured follicle
Primary oocyte within follicle
Ovulated secondary oocyte
Growing follicle
Corpus luteum
Mature follicle
Degenerating corpus luteum

11. Oogenesis (Expanded) 2n 2n n n n n In embryo Primordial germ cell
Mitotic divisions 2n
Oogonium
Mitotic divisions
Primary oocyte (present at birth), arrested in prophase of meiosis I 2n
Completion of meiosis I and onset of meiosis II
First polar body n n
Secondary oocyte, arrested at metaphase of meiosis II
Ovulation, sperm entry
Completion of meiosis II
Second polar body n
Fertilized egg n

12. Anatomy of Ovum
Second polar body

13. Spermatogenesis v. Oogenesis