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REPRODUCTIVE SYSTEM by Tania Acevedo - Coggle Diagram
REPRODUCTIVE SYSTEM by Tania Acevedo
Major functions of the Reproductive system
Male Reproductive System
Produce Sperm
Sexual Reproduction
Fertilization
Female Reproductive Functions
Produce Egg/ ovum
Prepare for support of developing embryo during and after pregnancy
Anatomy of Male reproductive Structures
Testes- primary organ
Penis and Scrotum- external genetilia
SPERM
Head- Nucleus w/ DNA
Acrosome- anterior portion of Head
Midpiece- fuel for journey inside female reproductive organ
Flagelia- human cell with tail used to propel spermatocyte
PENIS
Prepuce- foreskin, at proximal end
Gland Penis- Urethral opening, enlarged tip
Shaft- body
Root- attached to body
Anatomy of Female Reproductive Structures
EXTERNAL GENATELIA
Mons Pubis- fatty pad over pubic area coverd by hair
Labia- skin folds around vaginal opening
Labia Minora- inner fold
Labia Majora- outer fold
Vestibule- enclosed by labia Majora
Clitoris- contains erectile tissue
UTERUS
Cervix- narrow outlet that protrudes into vagina/opening into uteris
Fundus- area where uterine tube enters
Body- main portion
VAGINA
Hymen- partially closes vagina until required
DUCTUS SYSTEM
Uterine (Fallopian) Tube
Uterus
Vagina
Hormones of the Reproductive System
Male Sex Hormones
Leutinizing Hormone- stimulates secretion of testosterone
Follicle Stimulating Hormone (FSH)- @ puberty stimulates Sertoli cells for sperm production and maturation
Gonadotropin Releasing Hormone (GnRH)- released by anterior pituitary glad in brain to stimulate anterior pituitary gland to release LH & FSH
triggered by low testosterone; controlled by negative feedback
Testosterone- stimulates reproductive organ development & sex drive causes secondary characteristics
Inhibin- released by testes when when high levels of testosterone are present to released stimulate hypothalamus to release gonadotropin innhibiting hormone to stop production of LH & FSH
LH & FSH- released by anterior pituitary gland in the brain
Female Sex Hormone
GnRH- released to release LH and FSH
FSH- stimulates oogenisis and development into second follicle
LH & FSH- released by pituitary gland
LH- spike of hormone will trigger ovulation of most mature follicle (JUST 1)
Inhibin- decreases release of FSH
Estrogen- primary female sex hormone released by follicle causes secondary sex characteristics
Progesterone- trigers suppresssion of the hypothalamus from GnRH
stimulates the development & growth of the linning of the uterine tube wall to get ready for implantation
Female Reproductive Cycle
Ovarian Cycle
Follicular Phase
Day 1-14 from menstruation-ovulation, where one follicle becomes Graafian Follicle
Ovulation
Day 14 triggered by spike in LH,now Graafian follicle releases oocyte
Luteal Phase
Days 15-28, empty shell becomes Corpus Luteum, then it secretes estrogen & inhibin suppressing FSH
If there is no pregnancy then corpus leteum becomes corpus albicans causing the decreased in progesterone and estrogen
if there is a pregnancy then it keeps secreting progesterone and estrogen
Uterine/Menstrual Cycle
Menstruation
Day 1-5, where bleeeding occurs and
Proliferative Phase
Day 6-14, endometrium thickens,ovulated egg is caught
Secratory Phase
Day 15-28 uterus becomes ready for implantation, nutients are sent by uterine glands, LH drops bc of high level s of progesterone leading into menstruation
VIRAL & PARASITIC STD's
Herpes- no cure (virus)
AIDS- caused by HIV, no cure
Genetal Warts- caused by HPV, no cure
Pubic Lice/ Crabs- caused by parasite, treated w/shampoo and creams
Trichomoniasis- caused by small parasite, treated through oral medication