question_answer 44)

  Which of the following helps in repair of tissue and fills up the space inside the organ? (a) Tendon                          (b) Adipose tissue           (c) Areolar                           (d) Cartilage

Answer:

  (c) Areolar tissue is a loose and cellular connective tissue. Its matrix consists of two kinds of fibres, i.e., the white collagen fibres (which changes into gelatin on boiling in water) and the yellow elastic fibres or elastin. Several other kinds of irregular cells, (e.g.,   fibroblasts),   which   can   engulf   bacteria   and   prevent   infection (e.g., macrophages) are also present in the matrix. It is the simplest and most widely distributed connective tissue. It joins skin to muscles, fills spaces inside organs and is found around muscles, blood vessels and nerves. It acts as a supporting and packing tissue between organs lying in the body cavity. Matrix of this tissue is important in diffusion of oxygen and nutrients from small blood vessels. It helps in repairing of tissues and to combat foreign toxins.