Unit 4- Reproduction
Sexual Characteristics-Caracteres Sexuales
Reproductive Organs-Órganos Reproductores
Low Voice-Voz Grave
Higher Voice-Voz Aguda
Wider Hips-Caderas más anchas
Sexual Organs-Órganos Sexuales
Sexual Hormones-Hormonas Sexuales
Genital Organs-Órganos Genitales
Fallopian Tubes-Trompas de Falopio
Vas Deferens-Conductos Deferentes
Seminal Vesicles-Vesículas Seminales
Sex Cells-Celulas Sexuales
Sexual Characteristics are the physical differences that exist between men and women. Primary sexual characteristics are the reproductive organs. Secondary sexual characteristics are not directly related to reproduction. For example men have a low voice and facial hair. Women have a higher voice, develop breasts and have wider hips.
People are born with their sexual organs but they do not begin to mature until a certain age. Puberty is the stage in a persons development when the reproductive system matures. Puberty begins with hormones produced in the pituitary gland arrive at the sexual organs. Then they begin to mature and produce sexual hormones. These hormones cause the secondary sexual characteristics to develop.
A woman’s reproductive system is formed by various organs called genital organs. The ovaries produce both sexual hormones and the female sex cells. The fallopian tubes connect the ovaries to the uterus. The uterus is an elastic hollow organ where the baby grows during pregnancy. The vagina is the canal that connects the uterus to the outside of the body. The vulva is the external part of the female reproductive system.
The male reproductive system is formed by the testicles. The testicles are where both sexual hormones and male sex cells are formed. The sex cells are called spermatozoa. The vas deferens carry the spermatozoa to the urethra. The urethra releases spermatozoa to the outside. The prostate and the seminal vesicles produce a liquid that feeds and transports the spermatozoa. The scrotum is a tissue sac that protects the testicles. The penis which has the opening of the urethra at its end.