male and female

• What is the main goal of the male reproductive system?

  Create male gametes (sperm cells)
• What does the male reproductive system create and secrete?

  Hormones
• What are the two types of parts in the male reproductive system?

  External and internal parts
• What is the external sac that holds the testes called?

  Scrotum
• What is the function of the scrotum?

  Protects and regulates temperature of testes
• How does the scrotum respond to cold temperatures?

  Pulls the testes towards the body
• What happens to the scrotum in hot environments?

  Hangs away from the body
• What is the external reproductive organ of males?

  Penis
• What is the primary function of the penis?

  Deliver sperm to the female reproductive system
• What passes through the urethra in males?

  Urine and semen
• What covers the glans of the penis?

  Foreskin
• Why is the glans covered by foreskin?

  Due to its high sensitivity
• What is circumcision?

  Removal of the foreskin
• What are the three parts of the penis?

  Glans, shaft, base
• What is the average size of Filipino penises when flaccid?

  2 inches
• What is the average size of Filipino penises when erect?

  4-6 inches
• What causes an erection?

  Blood flow through the shaft of the penis
• What is the main reproductive organ of males?

  Testes
• What do the lobules in the testes contain?

  Seminiferous tubules
• What type of cells are found in seminiferous tubules?

  Sertoli cells
• What is the function of Sertoli cells?

  Responsible for sperm production
• Where are sperm stored after production?

  Epididymis
• What is the function of the vas deferens?

  Pathway for mature sperm to seminal vesicle
• What does the ejaculatory duct do?

  Helps propel sperm for movement
• What does the seminal vesicle release?

  Sugar-rich substance for sperm energy
• What is the function of the prostate gland?

  Releases alkaline substance to neutralize acidity
• What does the Bulbourethral gland release?

  Mucous-alkaline fluid to neutralize acidity
• What is the corpus cavernosum?

  Part of the shaft where blood flows for erections
• What is the corpus spongiosum?

  Part of the shaft surrounding the urethra
• What does the head of the sperm cell contain?

  Nucleus and acrosome
• What is the function of the acrosome in the sperm cell?

  Contains digestive enzyme to penetrate egg
• What does the midpiece of the sperm cell contain?

  Mitochondria for energy production
• What is the function of the tail or flagellum of the sperm cell?

  Responsible for movement and motion
• What are wet dreams?

  Release of semen during sleep
• When do wet dreams typically occur?

  When there hasn't been ejaculation in a while
• What does FSH signal in males?

  Signals gonads to make sperm cells
• What does LH signal in males?

  Signals gonads to make testosterone
• What are the effects of testosterone in males?

  Responsible for male-like characteristics
• What changes in the body does testosterone influence?

  Body hair, low voice, large muscles
• What can increased testosterone lead to in males?

  Increased sex drive and acne