BSC 1086C Chapter Notes - Chapter 26: Male Reproductive System, Reproductive System, Perineum
Document Summary
The reproductive system is designed to perpetuate the species. The reproductive system produces, stores, nourishes and transports gametes. The joining of a sperm cell and an oocyte is fertilization. Fertilization results in the formation of a zygote. Ducts that receive, store, and transport gametes. Male: penis (posterior to the penis is the scrotum) Adult male produces half a million sperm cells per day (after puberty) Sperm cells are expelled with semen during ejaculation. Principal structures of the male reproductive system are. Scrotum: pouch of skin located outside of the male body. Ductus deferens (vas deferens): muscular tube that extends up into the pelvic cavity and goes back behind the urinary bladder where it meets with the seminal gland. Prostatic urethra: receives prostatic fluid coming from the ejaculatory duct. Membranous urethra: first part passing through the external urethral sphincter (band of skeletal muscle the when contracted prevents urine/semen from leaving) Spongy urethra: found within the corpus spongiosum.
