| A | B |
|---|
| Adolscence | period of change. (physical, mental, social, emotional) |
| Puberty | physical change |
| endrocrine system | body system made up of glands that produce hormones |
| pituitary system | secretes hormones that conrols other glands. Secretes growth hormone. |
| parathyroid glands | secretes a hormone that controls the amount of calcium and phosphorus in the body. |
| thyroid gland | secretes s hormone that controls metabilism, Metabilism is the rate at which food is converted to energ in cells. |
| adrenal glands | secrete hormone that helps the body react to emergency situations. |
| pancreas | secretes a hormone that regulates the blood sugar level. |
| testes | most important organs in the male reproductive system; secretes the male hormone testosterone |
| ovaries | most important organ in the female reproductive system; secrete the females hormone, estrogen |
| ova | term for female reproductive cells (plural) |
| embryo | the first two months of a developing organisms life is called ? |
| ovulation | when the ovaries release one mature egg every month |
| uterus | part of the female reproductive system that is often called the womb |
| hereditary | is the sum of the traits that have been transmitted from your biological parents |
| chromosome | is a strand of matter found in the nucleus of a cell |
| gene | is a tiny piece of information that influences hereditary |
| dominant gene | a gene that produces a inherated traits |
| recessive gene | a gene that produces a inheredted only if the other gene in the pair is the same |
| asexual reproduction | one parent produces the children |
| sexual reproduction | requires two people a male and a female |
| reproduction | the process in which living things produce other living things |
| fetus | from the third month to the ninth month, the developing organism is called this |
| scrotum | the egg shaped organs of the male reproductive system are protected by a small sack called this |
| semen | thick white fluid that helps sperm move easily |
| menstruation | usually begins in females between the ages of nine and seventeen |
| placenta | gives the fetus food and oxygen |
| vas deferens | sperm moves to this when it leaves the epididymis |
| umblical cord | tube in which a fetus receives food and oxygen |
| fertilization | the process in which a male sperm cell joins with a femal egg cell |
| urethra | the small tube in which both urine and semen exit the body (but never at the same time) |
| zygote | immediately after fertilization has takem place, the fertilized egg cell is called this |
| infancy | the stage between birth and 1 year |
| epdidymis | once sperm is produced, it is stored here |
| fallopian tube | when an egg is released from an ovary it is pulled into this |
| adulthood | the final stage of growth |
| childhood | the stage from 1 year to about 12 years of age |
| seven | the number of days that it takes a fertilized egg to travel |
| 23 | the number of chromosomes that a male OR a female sex cell |
