REPRODUCTIVE SYSTEM Flashcards
(37 cards)
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
• Tightly coiled tube approx. 20 ft.
• Responsible for conducting sperm from the tubule to the vas deferens
Epididymis
• Also referred to as spermatic cord
• Hollow tube surrounded by areteries and veins
Vas Deferens(Ductus Deferens)
to protect the junction of the pubic bone (symphysis) from trauma.
Mons veneris
two folds of adipose tissue covered by loose connective tissue and epithelium
that are positioned lateral to the labia minora.
• fused anteriorly but separated posteriorly.
Labia majora
• posterior to the mons veneris spread two hairless pink folds of connective tissue
• the internal surface is covered with mucous membrane
• the external surface is covered with skin.
Labia minora
the flattened, smooth surface inside the
labia.
• The openings to the bladder (the
urethra) and the uterus (the vagina)
both arise from the vestibule.
Vestibule
a small (approximately 1 to 2
cm), rounded organ of erectile tissue at
the forward junction of the labia minora. It
is covered by a fold of skin, the
prepuce.
Clitoris
thin membrane at opening of vagina
Hymen
This is the situation where the
hymen does completely cover the opening to the vagina. This condition usually goes undiagnosed until a girl enters puberty and her first period and the blood cannot flow out.
Imperforate Hymen