


Do now: What I know, wonder and learned about the male reproductive system worksheet. Fill out what I know, and what I wonder section.
Class notes: Puberty in Males
Primary sex characteristics- sex characteristics present at birth (penis)
Secondary sex characteristics- sex characteristics that appear during puberty that gives the male the ability to reproduce. The hormone production of testosterone in the male testes causes this, as well as other changes, including (enlargement of the testes, pubic hair, armpit hair, lower voice, growth spurt, muscle growth, acne, nocturnal emissions, ejaculation, facial hair, chest hair, etc.)