Hbs Endocrine Section 1: Introduction and Labeling

The process by which an organism’s internal environment is kept stable in spite of changes in the external environment.

• Positive Feedback

• Negative Feedback

• Homeostasis

• Targeted Cells

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Are chemicals that travel in the blood and cause changes in different parts of the body

• Hormones
• Glands
• Parathyroid 
• Adrenal Gland 

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What is the endocrine system?

• A system of vessels that circulates blood around the body.

• A group of bones and tissue that provides support and structure for the body.

• A group of glands that work together with the nervous system to coordinate all body functions

• A group of organs that is responsible for eliminating wastes.

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What is the main function of the endocrine system?

• It creates chemicals, or hormones, that are sent around the body to maintain homeostasis.

• It creates electrical messages that are sent around the body to maintain homeostasis.

• It maintains the correct level of oxygen in the body to maintain homeostasis.

• It releases waste from the body to maintain homeostasis.

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Steroid hormones are _______ (check all that apply)

• made from chains of amino acids

• made from cholesterol

• soluble in water

• non-soluble in water

Protein hormones are _______ (check all that apply)

• made from chains of amino acids

• made from cholesterol

• soluble in water

• non-soluble in water

Steroid hormone-receptor complexes act in ……………

• the nucleus

• the plasma membrane

• the cytoplasm

• lysosomes

Protein (non-steroid) hormones combine with receptors ___

• in the nucleus

• in the cytoplasm

• on the cell membrane

• in lysosomes

What are glands?

• Organs that make and excrete waste

• Organs that make and release secretions

• Organs that make and release white blood cells

• Organs that make and excrete carbon dioxide

What is one difference between exocrine and endocrine glands?

• Exocrine and endocrine glands both release secretions into the blood

• Exocrine and endocrine glands both release secretions into open space

• Exocrine glands - release secretions into the blood

  Endocrine - release secretions into open space

• Exocrine glands - release secretions into open space

  Endocrine - release secretions into the blood