Which type of cartilage is densely packed with collagen?
hyaline cartilage
areolar cartilage
fibrocartilage
elastic cartilage
The Correct Answer is C
A. hyaline cartilage: Hyaline cartilage contains fine collagen fibers, but not densely packed ones. It is more glassy and smooth, found in the nose, trachea, and at joint surfaces.
B. areolar cartilage: This is not a valid type of cartilage. “Areolar” refers to loose connective tissue, not cartilage.
C. fibrocartilage: This type of cartilage is rich in dense bundles of collagen, making it very tough and resistant to compression. It’s found in intervertebral discs and the pubic symphysis.
D. elastic cartilage: Elastic cartilage contains more elastic fibers than collagen, allowing flexibility. It is found in the ear and epiglottis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. ground substance
This is a major component of the ECM, consisting of water, proteoglycans, and glycoproteins that fill the space between fibers and cells.
B. cytoplasmic inclusions
These are structures found inside the cell (e.g., glycogen granules, lipid droplets), not in the extracellular matrix.
C. fluid
Interstitial fluid (extracellular fluid) is part of the ECM and facilitates nutrient and waste exchange.
D. protein fibers
Collagen, elastic, and reticular fibers are key components of the ECM that provide strength, flexibility, and support.
Correct Answer is E
Explanation
A. pollination
This refers to the transfer of pollen in plants; unrelated to skin physiology.
B. keratinization
Keratinization is the process by which skin cells produce keratin and move upward in the epidermis, but it does not refer to shedding.
C. denaturation
Denaturation refers to the alteration of protein structure due to heat, pH, or chemicals-doesn’t apply to normal skin turnover.
D. germination
Germination refers to seed sprouting in plants, not skin cell behavior.
E. desquamation
Desquamation is the shedding of dead, keratinized cells from the outermost layer of the skin (stratum corneum).
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