GROWTH & CHANGE
Adolescence - The period from childhood to adulthood. The period from childhood to adulthood.
Puberty - When a person begins to develop certain traits of an adult of his or her own gender. When a person begins to develop certain traits of an adult of his or her own gender. Puberty marks the beginning of adolescence.
What is responsible for the changes that affect teens during puberty?? -- Hormones
Hormones- -Chemical substances that are produced in glands. -They play a role in sexual growth, development, and reproduction.
Testosterone – male hormone male hormone Estrogen & Progesterone - female hormones
Primary Sex Characteristics - - -directly related to the production of reproductive cells called, gametes. Male gametes – sperm Female gametes - eggs (ova)
Secondary Sex Characteristics- Additional changes during puberty that occur over several months or years.
Secondary Sex Characteristics: Males : Facial hair appears Body hair appears Voice deepens Shoulders broaden Muscles develop Hairline begins to recede Perspiration increases
Secondary Sex Characteristics: Females : Breasts develop Body hair appears Waistline narrows Hips widen Body fat increases Menstruation starts Perspiration increases Puberty