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Questions and Answers
What is a primary function of white adipose tissue?
Which cell type is NOT part of the reticuloendothelial system?
What characterizes brown adipose tissue compared to white adipose tissue?
How are the fibers arranged in dense regular connective tissue?
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What is one of the mechanical functions of adipose tissue?
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Study Notes
Reticuloendothelial System
- Supports the framework of the liver, spleen, bone marrow, and lymphoid organs
- Some reticular cells can create the precursors of erythrocytes and leukocytes in blood-forming organs
Adipose Tissue
- Primarily made up of adipocytes, forming lobules separated by fibrous septa
- Divided into two subtypes: white and brown adipose tissue
White Adipose Tissue
- Most common type of body fat, appearing white or light yellow
- Adipocytes have a single large fat droplet in the cytoplasm, giving a signet ring appearance
- Found in subcutaneous layers of the abdominal wall, axilla, buttocks, and thigh
Brown Adipose Tissue
- Appears brown
- Fat in adipocytes is in the form of multiple small droplets
- Mainly found in fetuses and newborns, absent or restricted in adults
Function
- Food reserve: primarily by white fat
- Mechanical function: act as shock-absorbing pads in palms, soles, and buttocks
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Regulation of body temperature:
- By producing heat (mainly brown fat)
- By acting as an insulator under the skin
Dense Connective Tissue
- Fibers are closely packed
- Fewer cells and less ground substance compared to loose connective tissue
- Divided into dense regular and dense irregular based on fiber arrangement
Dense Regular Connective Tissue
- Has densely packed fibers arranged parallel to each other
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Description
Explore the fascinating world of the reticuloendothelial system and adipose tissue. This quiz covers the structure, types, and functions of these crucial components within the body. Test your knowledge on white and brown adipose tissues and their roles in health and metabolism.
