Flashcards in Chapter Two - Connective Tissue Deck (109)
What are the general functions of connective tissue?
Provide structural support, provide a medium for exchange, defense/protection, storage of adipose
What is an example of a type of connective tissue whose function is to provide a medium for exchange?
Loose connective tissue
What is an example of a type of connective tissue whose function is to provide defense and protection?
Most connective tissue is derived from where?
Support cells in connective tissue are separated by what structure and also produce it?
Cells in connective tissue adhere to what structure?
What makes up the ground substance of the extracellular matrix?
What is an important characteristic about glycosaminoglycans?
Keratan sulfate, chondroitin sulfate, heparin sulfate, and dermatan sulfate are examples of what type of GAGs?
Sulfated GAGs are covalently bonded to what substances?
Hyaluronic acid is what type of GAG?
Which type of GAG is a smaller molecule?
What type of GAG is a larger molecule, forms dense molecular networks, and holds a lot of water?
What is the purpose of the excess water in non-sulfated GAGs?
Important for diffusion in some tissues
What are the positive aspects of inflammation?
Increased fluidity will aid cell movement, increased number of defensive cells
Where do the extra fluid and defensive cells come from during positive inflammation?
Leaky capillaries and venules
What is the negative aspect of inflammation?
Excessive swelling can damage blood vessels, nerves, and cells
What is the name for the excessive fluid remaining in the interstitial spaces during inflammation?
What is the most common connective tissue protein?
What type of collagen accounts for 90% of the total body collagen?
What term refers to the ability to resist longitudinal stress?
What connective tissue protein is known for its tensile strength but is unable to stretch?
Ehlers-Danlos Syndrome is a pathology associated with improper production of which connective tissue protein?
Unstable joints, hypermobility, and many dislocations are all symptoms and signs of what connective tissue condition?
What effect does aging have on collagen fibers?
Fiber production slows, and fibers are weaker
What is necessary for the proper crosslinking within the collagen I fiber?
What happens to collagen when there is not enough vitamin C?
Weaker collagen and more rapid fiber breakdown
What is the cause of scurvy?
Vitamin C deficiency
What produces elastic fibers?
Fibroblasts and smooth muscle cells