Male and Female Reproductive Systems Male Reproduction System

Male and Female Reproductive Systems

Male Reproduction System

Sperm – the sex cells that are made by males and that are needed to fertilize eggs. Testes – the male reproductive organs that produce sperm and testosterone.

Scrotum – the skin covered sac that surrounds the testes. Epididymis – once sperm are made they move into this coiled tube. Vas Deferens – once a sperm matures, it travels into this tube.

Prostate Gland – the male gland that adds fluid to the sperm to nourish and protect it. Semen – sperm and the added fluids. Urethra - the tube that passes through the penis. Sperm leave the body during ejaculation via this tube.

Penis - the organ that removes urine from the male body and that can deliver sperm to the female reproductive system.

Testosterone - the male hormone made by the testes.

How long does it take an immature sperm to mature? An immature sperm takes 2 – 10 days to fully mature.

What are some signs that a male is going through puberty? Shoulders get wider & develop muscles hair grows on the face and other body parts voice deepens At this time testosterone also causes the body to start making sperm.

Female Reproductive System

Eggs - the sex cells of females that can be fertilized by sperm. Ovaries – the female reproductive organs that produce eggs and hormones.

Fallopian Tubes – connect the ovaries to the uterus. Uterus – the muscular organ the size of a fist where fertilized eggs develop. Cervix - the narrow base of the uterus.

Endometrium – the lining of the uterus that thickens as an egg matures. Placenta - a blood vessel-rich tissue that forms in a mother’s uterus. Vagina - reproductive organ that connects the uterus to the outside of the body.

Menstruation If an egg is not fertilized, the blood vessels in the endometrium break down. The process in which the blood and tissue that built up in the uterus flows out of the body through the vagina.

Menstrual Cycle a monthly series of hormone-controlled changes that mature an egg and prepare the uterus for pregnancy.

What are some signs that a female is going through puberty? Growth of hair under the arms and pubic region Increase in height & weight Growth of darker hair on the legs Increase in perspiration Widening of the hips Increase in breast size Onset of menstrual periods

What are the two female hormones our body produces? Estrogen and Progesterone Girls have all their eggs at birth. On average, how many are there? Over 2 Million

When do eggs mature? Eggs begin to mature when a girl reaches puberty How often do eggs mature? One egg matures every 28 days Where are eggs fertilized? In the fallopian tubes

How do the changes occurring in the male and female body during puberty affect adolescents?

We will now be looking at what is described as abstinence and what is described as sex, but first…

Abstinence Sex Not engaging in any kind of sexual activity with a partner Any vaginal, or anal intercourse