5 Questions
Which glands secrete products (hormones) into the bloodstream?
Pituitary, thyroid, parathyroid, adrenal, pineal
What is the function of local hormones?
Act on neighboring cells
How do lipid-soluble hormones enter the cell?
Diffuse through phospholipid bilayer
Which hormones act on distant targets and travel in the blood?
Circulating hormones
Which functions are regulated by hormones?
Extracellular fluid, metabolism, contraction of cardiac & smooth muscle
Study Notes
Endocrine Glands
- Endocrine glands secrete products (hormones) directly into the bloodstream.
Local Hormones
- Local hormones, also known as paracrine signals, have a local effect on nearby cells or tissues.
Lipid-Soluble Hormones
- Lipid-soluble hormones can diffuse through the lipid bilayer of the cell membrane to enter the cell.
Hormone Action
- Hormones that act on distant targets are transported through the bloodstream to reach their target cells.
- These hormones are produced by endocrine glands and can travel long distances to reach their targets.
Hormone Regulation
- Hormones regulate various functions, including growth and development, metabolism, and reproductive processes.
Test your knowledge of the general functions and definitions of the endocrine system with this quiz. Identify key functions of hormones and understand the differences between endocrine and exocrine glands. This quiz covers topics such as regulation of extracellular fluid, metabolism, muscle contraction, glandular secretion, immune functions, growth, development, and reproduction.
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