Bell Work How does the nervous system respond

Bell Work �How does the nervous system respond to stimuli? �What components make up the CNS? �What is the pons responsible for?

The Endocrine System

The Endocrine System � The Endocrine System is the body’s “slow” chemical communication system.

Hormones are chemicals synthesized by the endocrine glands that are secreted in the bloodstream. For example, epinephrine (adrenaline) increases heart rate, blood pressure, blood sugar and feelings of excitement during emergency situations.

Lock and Key= each hormone is specific to a receptor

Pituitary Gland Is called the “master gland. ” The anterior pituitary lobe releases hormones that regulate other glands. The posterior lobe regulates water and salt balance and releases other hormones Regulates growth hormones

Hypothalamus Controls Pituitary Links endocrine And nervous system Add to brain diagram

Thyroid & Parathyroid Glands Regulate metabolic and calcium rate.

Goiter’s Disease

Adrenal Glands Adrenal glands consist of the adrenal medulla and the adrenal cortex. The medulla secretes adrenal hormones The adrenal cortex regulates salt and carbohydrate metabolism. Pancreas: sugar levels

Gonads Sex glands: 1) regulate development 2) maintain reproductive organs in adults. Ovaries- secrete estrogen. Testes- secrete testosterone

Wrap Up

Imagine you are an endocrinologist

Four patients come to you with the following conditions. Diagnose which gland in the endocrine system may be affected: 1) 2) 3) 4) The patient suffers from too little calcium in the blood The patient is an adult male and is only 4 feet and 6 inches tall The patient has goiters The patient is a 24 year old female without female secondary sexual characteristics