The Endocrine System

A chemical substance secreted by endocrine cells into the extracellular fluids that regulate the metabolic activity of other cells.

• Hormone

• Endocrine Gland

• Exocrine Gland

• Prosaglandin

Which is NOT considered a class of hormones

• Amino acid-based

• Steroids

• Prostaglandins

• Lipids

The endocrine system is made up of glands that release hormones into the blood.

• True

• False

Which of these functions are the main function of the endocrine system?

• To ensure that we take in oxygen through the lungs

• To make hormones that control growth and development

• To control balance, movement, and coordination

• To protect the body from disease caused by pathogens

These glands secrete materials through openings (ducts) onto body surfaces​ (a)  

• nervous
• chemical
• exocrine
• endocrine

Glands are .

(a)  

• organs
• muscles
• bones
• blood vessels

Hormones cause specific effects by ______.

• Flooding the entire body

• Targeting specific parts of the brain

• Targeting specific groups of cells in the body

• Spreading through the nervous system

What are the two ways which hormones can trigger changes in the cells they target?

• Direct gene activatioin

• Binding to a receptor

• Second messenger system

• Hormone-receptor complex

By which means can steroid hormones enter into cells to activate genes?

• Direct Messenger System

• Direct Gene Activation

• Second-Messenger System

• Second Gene Activation

By which means can amino-acid based hormones enter into cells to activate genes?

• Direct Messenger System

• Direct Gene Activation

• Second-Messenger System

• Second Gene Activation