Science

• Penis: external male sex organ
• Scrotum: sac of skin and muscle containing testicles
• Autonomic nervous system
• Somatic nervous system
• Circumcision is the surgical removal of the foreskin.
• Prostate: exocrine gland of the male reproductive system
• Vas Deferens: tubes connecting epididymis to ejaculatory ducts
• Epididymis: organ where sperm matures
• Testicles: organ where sperm is created
• Urethra: tube that connects the bladder to the outside of the body
• Cowper’s Gland: secretes lubricating fluid
• Seminal Vesicle: make semen (seminal fluid)
• Vagina: tract from the uterus to exterior
• Hymen: mucous membrane around the vaginal opening
• Cervix: lower, narrow portion of the uterus
• Uterus: pear-shaped organ containing the growing fetus
• Fallopian Tubes: pathway for egg travel during ovulation
• Ovaries: egg-producing organs
• Endocrine System: Regulating all biological processes in the body
• Hormones in Reproductive System: Maintain sex characteristics, and play a significant role in menstrual cycle, fertility, and pregnancy
• The ovary normally releases only one egg every 28 days.
• Hormones control the timing of ovulation.
• Hormones control many reproductive changes in the reproductive system.
• Hormones also coordinate the development of the ovum and the uterus.
• Menstrual Cycle usually starts at the age between 10-13 years old
• The menstrual phase is the first stage of the menstrual cycle.
• This phase starts when an egg from the previous cycle isn’t fertilized in the corpus luteum.
• Because pregnancy hasn’t taken place, levels of the hormones estrogen and progesterone drop.
• The thickened lining of your uterus, which would support a pregnancy, is no longer needed, so it sheds through your vagina.
• During your period, you release a combination of blood, mucus, and tissue from your uterus.
• The follicular phase starts when the hypothalamus signals the pituitary gland to release follicle-stimulating hormone (FSH).
• Only the healthiest egg will eventually mature.
• The maturing follicle sets off a surge in estrogen that thickens the lining of your uterus.
• The nervous system receives and processes all of the information from all parts of the body and controls the entire organ system of the body.
• The egg travels down the fallopian tube toward the uterus to be fertilized by sperm.
• The peripheral nervous system carries impulses from the sensory nerves to the Central Nervous System (CNS) and from the CNS to the motor nerves.
• Positive feedback mechanisms control self-perpetuating events that can be out of control and do not require continuous adjustment.
• Ovulation lasts about 24 hours.
• After a day, the egg will die or dissolve if it isn’t fertilized.
• The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.