ENDOCRINE SYSTEM

Objective

• A. describe the principles of hormonal coordination and

control by the endocrine system

• What is the overall function of the endocrine system?

• With what other systems does the endocrine system

interact?

Guiding Question

regulates

by means

of theby means

of the

by means

of theby means

of the

by means

of theby means

of the

GrowthWater

balanceReproduction Metabolism

Calcium

and glucose

levels

Response

to stress

The Endocrine

System

Pituitary

Ovaries

Testes Thyroid Pancreas Adrenals

Parathyroids

Parts of the Endocrine System• Glands – release products to bloodstream directly

• Hormones – products deliver messages to body

• Target cells – have specific receptors for specific

hormones

• Receptors – a protein found on the plasma membrane of

a target cell that recognizes a specific hormone and can

trigger a change in a cell.

Hypothalamus

The hypothalamus makes

hormones that control the

pituitary gland. In addition, it

makes hormones that are

stored in the pituitary gland.

Pituitary gland

The pituitary gland produces

hormones that regulate many of

the other endocrine glands.

Parathyroid glands

These four glands release

parathyroid hormone,

which regulate the level of

calcium in the blood.

Thymus

During childhood, the thymus

releases thymosin, which

stimulates Tcell development.

Adrenal glands

The adrenal glands release

epinephrine and nonepinephrine,

which help the body deal with

stress.

Pineal gland

The pineal gland releases

melatonin, which is involved in

rhythmic activities, such as daily

sleep-wake cycles.

Thyroid

The thyroid produces thyroxine,

which regulates metabolism.

Pancreas

The pancreas produces insulin and

glucagon, which regulate the level of

glucose in the blood.

Ovary

The ovaries produce estrogen and

progesterone. Estrogen is required

for the development of secondary

sex characteristics and for the

development of eggs. Progesterone

prepares the uterus for a fertilized

egg.

Testis

The testes produce testosterone,

which is responsible for sperm

production and the development of

male secondary sex characteristics

Glands of the Endocrine System

YOU BE A DOCTOR!

• In this activity, you will take on the role of a doctor.

• Read the patient files and the information packet on

edmodo.

• Diagnose the patient with the condition you think they

have based on their symptoms and fill in the patient

medical chart.

GLANDS PEER TEACHING

ACTIVITY

• In this activity, you will work in small groups of 2-3 people and work on an assigned gland

• The best way to understand glands, is to look at:1) What happens if glands don’t work properly, or

2) How they are involved for a specific body function.

• Research the gland, hormones, target cells and receptors that are involved.

• Discuss hormonal diseases/conditions that are related to your assigned gland and how that impacts the body system.

• Produce a diagram of your gland and a small information packet for the body diagram.