REPRODUCTIVE SYSTEM Flashcards
begins at the moment of conception and continues through life
REPRODUCTIVE DEVELOPMENT
the body organ that produces cells for reproduction (ovary in female, testis in males)
Gonad
mesonephric(wolfian) and paramesonephric (mullerian) ducts are formed
5 weeks of IUL
in chromosomal males, gonadal tissue begins formation of testosterone.
Mesonephric Ducts develops into male reproductive organ and the
Paramesonephric Duct regresses
7-8 weeks
if testosterone is not present, paramesonephric duct becomes dominant and develops to female reproductive organs. Formed Ovaries produces oocytes (the cells that will develop into eggs throughout the woman’s mature years
10 weeks
external genitals begins to develop
12 Weeks
if testosterone is halted during 12 weeks, male could be born with femaleappearing genitalia. This is termed AS
AMBIGUOUS GENITALIA
is the stage of life at which secondary sex changes begins.
PUBERTY
• Responsible for muscle development, physical growth,
• Increase in sebaceous gland that causes acne to adolescents
Androgen Hormone
Influences the development of the uterus, fallopian tubes and vagina
Breast development
Role of Estrogen
losing of growth plates in long bone termed as
Adrenarche
the beginning of breast development usually 1 to 2 years before menstruation
Thelarche
• Rugated, skin-covered muscular pouched
• Support the testes
Scrotum
Two ovoid glands, 2 to 3 cm wide
Testes
• Consist of three cylindrical masses of erectile tissue in the shaft
• Urethra passes serves as outlet for urinary and reproductive tracts
Penis