| A | B |
|---|
| adolescence | time of life between childhood & adulthood |
| hormones | chemical substances which help regulate the way the body functions |
| puberty | time when you develop certain physical characteristics adults |
| endocrine system | system the consists of the glands that regulate body functions |
| gland | group of cells or organ that produces chemical substances |
| pituitary gland | called the master gland |
| reproduction | process by which living organisms produce new individuals of their kind |
| reproductive system | organs and structures that make possible the production of offspring |
| sperm | male reproductive cell |
| egg | female reproductive cell |
| fertilization | male sperm cell unites with a female egg cell |
| semen | mixture of sperm and fluids |
| ovaries | two female reproductive glands that release the egg |
| uterus | pear-shaped organ in which a developing child is nourished |
| menstruation | the flow of the uterine lining material from the body |
| gynecologist | doctor that specializes in the female reproductive system |
| cell | building block of life |
| tissue | groups of similar cells that do a particular job |
| organ | body parts made up of different tissues joined together |
| body system | group of organs working together to carry out a related task |
| embryo | name for the organism from fertilization to about the 8th week |
| fetus | name for the developing child from the 9th week until the time of birth |
| chromosome | threadlike structures that carry the codes for inherited traits |
| gene | basic units of heredity |
| infancy | first year of a baby's life |
| toddler | a child between the ages 1 and 3 |
| preschooler | a child between the ages 3 and 5 |
| grief | sorrow caused by the loss of something precious |
| heredity | passing on of traits from parents |
