Which of the following is the predominant cell type in connective tissue proper?

(1) Fibroblasts

(2) Lymphocytes

(3) Macrophages

(4) Mast cells

Collagen fibres are secreted by:

(1) Fibroblast

(2) Mast cells

(3) Histocyte

(4) Macrophages

In the below diagram of areolar connective tissue, the different cells and parts have been indicated by alphabets.

Choose the answer in which these alphabets correctly match with the parts and cells they indicate:

Identify figure-I and II respectively:

(1) Dense regular connective tissue, dense irregular connective tissue

(2) Dense irregular connective tissue, dense regular connective tissue

(3) Adipose tissue, specialised connective tissue

(4) Connective tissue proper, specialized connective tissue

Bone forming cells are:

(1) Osteoclasts

(2) Osteoblasts

(3) Chondroblast

(4) Chondroclasts

Cells of cartilage (chondrocyte) are enclosed in small cavities within the matrix secreted by:

(1) Osteoclast

(2) Osteoblast

(3) Chondrocyte

(4) Chondroclasts

Identify figure-I and II, structures A and B respectively? Figures are related with specialised connective tissues:

Identify the following cells in a specialised connective tissue:

Each muscle is composed of many long, cylindrical fibres arranged in parallel arrays. These fibres are composed of numerous fine fibrils, called:

(1) Microfilament

(2) Myofibrils

(3) Microtubule

(4) Sarcoplasm

Which of the following statements is correct about the cardiac muscles?

I. It is present in heart only

II. The plasma membranes of adjacent cardiac cells interlock at intercalated disc

III. The intercalated disc contains desmosome (adhering and gap junction)

IV. Gap junctions allow the cardiac cells to contract as a unit

(1) All are correct

(2) None of these

(3) II and IV only

(4) I and II only