#1
Which of the following is a characteristic of dense irregular connective tissue?
Loosely arranged collagen fibers in multiple directions
ExplanationProvides structural flexibility.
#2
Where is dense irregular connective tissue commonly found?
In the dermis of the skin
ExplanationForms the dermal layer, providing strength and support.
#3
In which layer of the skin is dense irregular connective tissue primarily located?
Dermis
ExplanationPredominantly found in the dermis.
#4
What is the main component of the extracellular matrix in dense irregular connective tissue?
Collagen fibers
ExplanationCollagen fibers make up the bulk of the matrix.
#5
Which type of collagen is predominantly found in dense irregular connective tissue?
Type I collagen
ExplanationType I collagen is the primary constituent.
#6
What is the primary function of dense irregular connective tissue?
To provide support and attachment
ExplanationEssential for structural support and attachment.
#7
Which cell type is commonly found in dense irregular connective tissue and is responsible for producing extracellular matrix components?
Fibroblast
ExplanationProduces and maintains extracellular matrix.
#8
What is the structural difference between dense irregular and dense regular connective tissue?
Dense irregular has fibers arranged in multiple directions while dense regular has fibers arranged in parallel bundles.
ExplanationDense irregular has multidirectional fibers; dense regular has parallel ones.
#9
Which of the following statements about the blood supply of dense irregular connective tissue is true?
It has a poor blood supply.
ExplanationBlood supply to this tissue is limited.
#10
Which of the following statements accurately describes the appearance of dense irregular connective tissue under a microscope?
Randomly arranged collagen fibers
ExplanationCollagen fibers exhibit random arrangement.
#11
What is the significance of the irregular arrangement of collagen fibers in dense irregular connective tissue?
It provides flexibility and resistance to tension from different directions
ExplanationConfers flexibility and resistance to tension.
#12
What role does dense irregular connective tissue play in wound healing?
It provides structural support and strength to the wound site.
ExplanationEssential for wound site structural integrity.
#13
Which disease is associated with the abnormal accumulation of dense irregular connective tissue in various organs?
Scleroderma
ExplanationCharacterized by excessive tissue fibrosis.
#14
Which of the following is NOT a characteristic of dense irregular connective tissue?
Highly organized collagen fibers
ExplanationLacks highly organized collagen fibers.
#15
What is the role of dense irregular connective tissue in maintaining organ structure and shape?
Resists forces applied in various directions
ExplanationMaintains organ shape against multidirectional forces.