The Endocrine System and Reproduction - · PDF fileThe Endocrine System and Reproduction `...

The Endocrine System and Reproduction

✤ `Grade 9 Science

2011

Tuesday, November 1, 2011

Essential Questions

How does the Endocrine system control body processes?

What are the Endocrine glands?

What do Endocrine glands do?

What is a hormone?

Key Terms:endocrine gland - hormone - target cell - hypothalamus, pituitary gland.


What is different?


What is different?

What caused these effects?


What is different?


..and these effects?


Endocrine glands regulate the changes that occur as a young boy

grows.

What is different?


..and these effects?


What caused this fun, exciting, exhilarating



ride



ride to become a tortuous experience.


`


`

How much did that hurt?


`


`When people are badly frightened, their bodies react in different ways.


`When people are badly frightened, their bodies react in different ways.

Perspiration on the forehead, rushing of blood to the heart and rapid heartbeat are all physical

reactions caused by the body’s endocrine system.


Essential Questions

How does the Endocrine system control body processes?

What are the Endocrine glands?

What do Endocrine glands do?

What is a hormone?

Key Terms:endocrine gland - hormone - target cell - hypothalamus, pituitary gland.


What is the Endocrine system?



The endocrine system produces chemicals that control many of the body’s daily activities.




It also regulates the long term changes such as growth and development.




It also regulates the long term changes such as growth and development.

It is made of glands which are organs that produce or release a chemical called a hormone.


What is a Hormone?

The chemical product of a Gland is called a hormone. They turn on, off,speed up or slow down the activities of different organs.

Hormone Production- hormones are released from the glands by nerve impulses or other hormones and are produced in the glands.

They tell cells called target cells what to do and only specific target cells respond to specific hormones.


Function of the Endocrine Glands

Each gland releases different hormones and thus controls different processes.

The endocrine glands, include the hypothalamus, pituitary, thyroid, parathyroid, adrenal, thymus and pancreas. They also include the ovaries in females and the testes in males.


The Hypothalamus

It regulates and controls the Pituitary Gland and plays a role controlling other glands.

Is the link between the Nervous system and Endo. system. E.g nerve messages controlling sleep and hunger come from the Hypothalamus.

It is a tiny part of the brain, near the middle of the head.


Pituitary GlandIt is just below the hypothalamus gland and it communicates with the it to control many activities.

It produces three hormones :

1 Stimulates the Thyroid to produce hormones.

2. A hormone that targets the kidneys

3. A pituitary growth hormone which targets bones and muscles.


Body Atlas: Glands and Hormones. Answer the Question bank in lesson 1. on the class website.


Task:

With a partner match use the Functions of the Endocrine system and match them to the labels.

Hwork: Finish this activity.


The Endocrine System and Reproduction - · PDF fileThe Endocrine System and Reproduction `...

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