Endocrine

secrete directly into the blood

Exocrine

secretes into body cavity outside

Hormones

chemical messenger released into bloodstream and travels throughout the body to target cells

Hormone Control

Endocrine and nervous system work together to keep level normal

• Homeostasis
• Negative Feedback

Three Sources of control

• Neural
• Hormonal
• Humoral- body fluids or substances

Hypothalamus

Commander in chief

located at the base of the brain. The FUNCTION of the hypothalamus is to MAINTAIN HOMEOSTASIS

Pituitary gland

"Master Gland"

controlled by hypothalamus

Pituitary gland

Two Parts

Anterior

The front portion

Produces and secretes hormones such as:

• GH (growth hormone)
• TSH(thyroid-stimulating hormone)
• ACTH(adrenocorticotropic hormone)
• LH & FSH
• Prolactin