Connective Tissue Cells: Types and Characteristics

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From which cells do fat cells develop at sites that accumulate fat?

Plasma cells

Mesenchymal cells

B-lymphocytes

Fibroblasts (correct)

What is the characteristic appearance of fat cells when stained with H&E?

Angular shape with a central nucleus

Empty spaces with signet ring appearance (correct)

Spherical shape with a large nucleus

Intensely basophilic cytoplasm with a large Golgi apparatus

What is the function of plasma cells?

Storage of lipids

Phagocytosis of foreign particles

Secretion of hormones

Secretion of antibodies (correct)

What is the characteristic feature of the nucleus in plasma cells?

Eccentric nucleus with clockface heterochromatin (C) Signup and view all the answers

What is the function of Russell bodies in plasma cells?

Signify the beginning of degeneration (B) Signup and view all the answers

What is the characteristic shape of mast cells in light microscopy?

Rounded or oval shaped with a rounded central nucleus (A) Signup and view all the answers

What is the main function of mesenchymal cells in connective tissue?

To give rise to other types of connective tissue cells (A) Signup and view all the answers

Which of the following is a characteristic of old fibroblasts (fibrocytes)?

Flattened shape and little pale acidophilic cytoplasm (C) Signup and view all the answers

Which type of cells is responsible for secreting tropocollagen to form collagenic fibers?

Fibroblasts (B) Signup and view all the answers

What is the primary function of fibroblasts in wound repair?

To repair wounds (C) Signup and view all the answers

Which of the following is a characteristic of fibroblasts under electron microscopy?

Numerous RER and well-developed Golgi apparatus (B) Signup and view all the answers

What is the origin of fibroblasts in connective tissue?

Directly from mesenchymal cells (A) Signup and view all the answers

What is the characteristic of mast cell granules when stained with basic dyes?

Metachromatic (A) Signup and view all the answers

What is the origin of macrophages in prenatal life?

From mesenchymal cells (B) Signup and view all the answers

What is the function of macrophages?

Phagocytosis of foreign materials (C) Signup and view all the answers

What is the shape of a macrophage when it is compressed by other tissues?

Angular (C) Signup and view all the answers

What is characteristic of the nucleus of a macrophage?

It is eccentric and indented (C) Signup and view all the answers

What is the characteristic of macrophages when viewed under electron microscopy?

Presence of numerous phagocytosed particles (A) Signup and view all the answers

Which of the following is a characteristic of mast cells?

They secrete histamine (C) Signup and view all the answers

Which of the following is a type of fixed connective tissue cell?

Macrophage (B) Signup and view all the answers