What is the

Endocrine System

Regulates long term changes in the body such as growth and

development

Complete endocrine vocabulary using pages 460 - 463

Endocrine Gland – a group of organs that produce and release chemical substances that signal changes in other parts of the body

ENDOCRINE GLAND

FUNCTION

THYROID Regulates the body’s overall metabolic rate and controls calcium levels in the bloodstream

PARATHYROID

Regulate levels of calcium and phosphorus

HYPOTHALAMUS

An endocrine gland in the brain, responsible for signaling the release of hormones from other parts of the brain

PITUATARY Controls many of your body’s functions including growth, reproduction, and metabolism

THYMUS Hormones released by the thymus gland help the immune system develop during childhood.

ADRENAL Release several hormones including adrenaline.

Male Reproductive System

Function is to produce sex hormones, to produce and store sperm, and to deliver

sperm to the female reproductive system

• Because they are located outside of the body, the temperature of the testes is a few degrees lower then the rest of the body. Sperm need this lower temperature to develop properly and survive.

• Several million sperm are released during one ejaculation.

• Caring for the male reproductive system involves cleanliness, sexual abstinence, protection from trauma, self-exams, and regular medical checkups

Female Reproductive SystemThe functions of the female reproductive system are to produce

sex hormones, to produce eggs, and to provide a nourishing environment in which a fertilized egg can develop

into a baby.

DAY OF MENSTRAL

CYCLE

STAGES OF MENSTRAL CYCLE

DAY 1-4 The uterine lining is shed during menstruation

DAY 5-13 An egg matures in one of the ovaries and the uterine lining thickens

DAY 14-15 The ovary releases the mature egg during ovulation

DAY 16-22 The egg travels through the fallopian tube to the uterus, and the uterine lining continues to thicken

DAY 23-28 The unfertilized egg enters the uterus

The Menstrual Cycle•During the menstrual cycle, an ovary releases a mature egg. The egg travels to the uterus. If the egg is not fertilized, the uterine lining is shed and a new cycle begins•Caring for the female reproductive system involves cleanliness, sexual abstinence, prompt treatment for infections, self-exams, and regular medical checkups. •Once a female has reached puberty, it is recommended to have a yearly check up by a gynecologist.•During the yearly exam the doctor will perform a Pap smear, this is when a sample of cells is taken from the cervix.

Breast and Testicular Awarness

Page 476-477