MALE R.S.

• Neuroendocrine System - male and female reproductive system are regulated.
• Neuroendocrine system - stimulates and inhibit the activities of other systems to help maintain the body's homeostasis.
• reproductive cycle - controlled by the interactions of hormones from the hypothalamus and pituitary from reproductive organs
• Neuroendocrine system - single system involving the Endocrine system and Nervous system.
• The neuroendocrine system consists of: Hypothalamus, anterior pituitary gland, ovaries, and testes
• anterior pituitary gland - part of the Endocrine system that secretes several hormones into the bloodstream
• reproductive system - essential for the creation of new individuals; important in formation of sex cells, development of sex organs, and production of hormones.
• Testes/ testicles - main male reproductive organ; production of sperm cells occurs
• testes/ testicles - oval-shaped organs found in the scrotum
• scrotum - protective sac of skin; contains the testes
• scrotum - holds each testes and helps regulate temperature
• testes- male sex gland; counter-part of the ovaries
• 4-5 billion sperm cells are produced each month
• each lobe contains: 1-3 coiled tubes- known as seminiferous tubules
• seminiferous tubules - where spermatogenesis takes place
• REPRODUTIVE CELLS INSIDE THE TESTIS: Sertoli cells and Leydig/ interstitial cells
• sertoli cell - supply nutrients to mature sperm cells
• spermatozoa - called in mature sperm
• interstitial/leydig cells - responsible for male hormone production (testosterone)
• seminiferous tubules - compartment with many tiny coiled tubules.
• through meiosis- sperm cells are produced in the linings of the seminiferous tubules.
• meiotic division - reduces the number of chromosomes
• diploid zygote - formed through fertilization from the fusion of the sperm and egg, which are both haploid.
• Male Reproductive System - produces sperm cells and delivers inside the female r.s.
• Sperm - microscopic cells which can fertilize the female's ovum
• sperm - tiny living cells smaller than a pencil dot
• sperm - destroyed by warm body temperature, acidic environment
• 5-8 days - sperm can survive in a woman's body
• less than 24 hours - sperm can survive outside the body
• 20 mins - sperm can survive in a warm environment
• 24 hours - sperm can survive in a cool environment
• any sperm not ejaculated are passed in the- urine..
• MAIN PARTS OF THE MATURE SPERM: Head, tail, Midpiece
• head - contain the nucleus; stores the testosterone and has a protective cap.
• acrosome - protective cap ; stores the enzymes.
• midpiece - contains the mitochondria; supply energy to the tail
• tail - helps propel it forward with a snake-like motion.
• tail - powerful flagellum that enables the sperm to move
• tail - responsible for the sperm's movement
• 100 million- sperm contains in semen per mililiter.