URINARY System Two kidneys Two ureters Urethra
Anatomy of the Kidney Main structures: renal cortex renal medula renal pelvis nephrons
Urinary Tract – Ureter
Urinary Tract – Urethra (Female)
Urinary Tract – Urethra (Male)
Primary sex characteristics Reproductive System Primary sex characteristics XY or XX
What is on the Y Chromosome? Y chromosome contains sex-determining region of Y (SRY) SRY codes for protein called Testis-determining factor (TDF) Testosterone production
MALE REPRODUCTIVE SYSTEM
Components Scrotum Testis Duct system Penis Accessory glands
Scrotum Skin Septum Dartos muscle (smooth) Temperature
Testis
Spermatogenis Spermatogonia Primary spermatocytes On basal lamina Mitosis Primary spermatocytes 1st meiotic division Secondary spermatocytes 2nd meiotic division Spermatid Haploid 4 from each 1° spermatocyte
Ducts Epididymis Ductus (vas) deferens Ejaculatory duct (urethra)
Epididymis Located in scrotum ~6 m long
Ductus (vas) deferens From scrotum to pelvis Empties into prostatic urethra
Accessory glands Prostate Seminal vesicles
Prostate
Prostate
Seminal vesicles
Semen Testis Prostate Seminal vesicles Sperms 30% 50~100 mil/ml Below 20 mil/ml infertility issues Prostate 30% Prostaglandins Activate sperm Seminal vesicles 60% Fructose
FEMALE REPRODUCTIVE SYSTEM
Anatomy of Female Reproductive System Female reproductive organs Ovaries Uterine tubes Uterus Vagina
Female Reproductive System
Follicular Development: Ovarian Cycle
Sperm Cell Movement
Fertility and pregnancy