Question

Which of the following statements is/are true?a. Loose connective tissue includes cartilage. b. Closely packed bundles of collagen fibers are characteristic of loose connective tissues. c. Dense irregular connective tissue has a high proportion of elastic fibers. d. Dense connective tissue is dominated by collagen fibers.

Answer 1

Of the statements given, only 'd' is true: Dense connective tissue is dominated by collagen fibers and is known for its resistance to stretching.

Step-by-step explanation:

The question revolves around the characteristics of various types of connective tissue. Statement 'a' that loose connective tissue includes cartilage is not true; cartilage is considered a supportive connective tissue. Statement 'b,' suggesting that closely packed bundles of collagen fibers are characteristic of loose connective tissues, is incorrect because such a description applies to dense regular connective tissue instead. Statement 'c,' regarding dense irregular connective tissue having a high proportion of elastic fibers, is not necessarily true, as dense irregular connective tissue typically has collagen fibers interwoven into a mesh-like structure. The correct statement is 'd,' which states that dense connective tissue is dominated by collagen fibers. Dense connective tissue provides great resistance to stretching due to the higher quantity of collagen fibers when compared to loose connective tissue.

Answer 2

d. Dense connective tissue is dominated by collagen fibers.

Step-by-step explanation:

Bones and cartilage are the supporting connective tissue while loose and dense connective tissues are categorized as the connective tissue proper. Cartilage does not have nerves and blood vessels in its extracellular matrix.

Loose connective tissues have the fibers loosely arranged between the cells while the dense connective tissues have tightly packed fibers.

Both dense regular and irregular connective tissues mainly have a high proportion of white collagen fibers. Tendons and ligaments are the examples of dense regular connective tissues while the dense irregular connective tissues are present in the inner location of the skin.