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The Reproductive System. Chapter 27. Male Reproductive System. The Scrotum. The Testes and Epididymis. The Testes and Epididymis. The Ductus Deferens and Glands. Urethra and Penis. Sperm. Three regions Head with acrosome Mid-piece or body Tail Enzyme Hyaluronidase.

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Presentation Transcript
sperm
Sperm
  • Three regions
    • Head with acrosome
    • Mid-piece or body
    • Tail
  • Enzyme Hyaluronidase
physiology of male system
Physiology of Male System
  • Sperm Analysis
    • One of the first tests done to determine male infertility
    • Sterile if less than 20 million sperm per ml
  • Erection
    • Controlled by the parasympathetic nervous system
    • Nitric oxide causes the smooth muscles to relax and the blood vessels to dilate
  • Ejaculation
    • Controlled by the sympathetic nervous system
    • Also called climax or orgasm
gametogenesis
Gametogenesis
  • Occurs by Meiosis rather than mitosis
  • Results in four daughter cells rather than two
  • Reduces chromosome number by one-half
ovarian cycle
Ovarian Cycle
  • Follicular phase
  • Ovulation
  • Luteal phase
uterine cycle
Uterine Cycle
  • Menstrual stage (menses)
  • Pre-ovulatory stage (proliferative)
  • Post-ovulatory stage (secretory)
homeostatic imbalances
Testicular cancer

Prostate cancer

Prostatitis

Cryptochidism

Impotence

Pelvic inflammatory disease

Cervical cancer

Uterine prolapse

Nondisjunction

Sexually transmitted diseases

Gonorrhea

Syphilis

Chlamydia

Genital warts

Genital herpes

Amenorrhea and menopause

Dysmenorrhea

Endometriosis

Homeostatic Imbalances