Chapter 28, part 1
The Reproductive System
SECTION 28-1 The Reproductive System
Learning Objectives
Specify the components of the reproductive system, and summarize their functions
Describe the components of the male and female reproductive systems
Outline the processes of meiosis and gametogenesis in both sexes
Explain the roles played by the male reproductive tract and accessory glands in the functional maturation, nourishment, storage, and transport of spermatozoa
Learning Objectives
Summarize the anatomical, physiological, and hormonal aspects of the male and female reproductive cycles
Discuss the physiology of sexual intercourse
Reproductive System
Reproductive system functions in gamete
Production
Storage
Nourishment
Transport
Fertilization
Fusion of male and female gametes to form a zygote
SECTION 28-1 Introduction to the Reproductive System
Reproductive system includes:
Gonads (testes, ovaries)
Ducts
Accessory glands and organs
External genitalia
Males and Females
Males
Testes produce spermatozoa
Expelled from body in semen during ejaculation
Females
Ovaries produce oocytes
Immature ovum
Travels along uterine tube toward uterus
Vagina connects uterus with exterior of body
SECTION 28-2 The Reproductive System of the Male
Male Reproductive System
Pathway of spermatozoa
Epididymis
Ductus deferens
Ejaculatory duct
Accessory organs
Seminal vesicles
Prostate gland
Bulbourethral glands
Scrotal sac encloses testes
Penis
Figure 28.1 The Male Reproductive System
The testes
Descent of the testes
Movement of testes through inguinal canal into scrotum
Occurs during fetal development
Testes remain connected to internal structures
Spermatic cords
Figure 28.2 The Descent of the Testes
Figure 28.2 The Descent of the Testes
Figure 28.3 The Male Reproductive System in Anterior View
Male Anatomy
Musculature of scrotal sac
Dartos muscle wrinkles scrotal sac
Cremaster muscle pulls sac close to body
Testes anatomy
Tunica albuginea surrounds testis
Septa extend from tunica albuginea to epididymus
Lobules
Sperm production
In seminiferous tubules
Interstitial cells between seminiferous tubules
Secrete sex hormones
Sperm pass through rete testis
Efferent ductules connect rete testis to epididymus
Figure 28.4 The Structure of the Testes
