Introduction to Histology

Question 1

What are the basic tissues of the human body?

Answer 1

1) Epithelial tissue
2) Connective tissue
3) Muscle tissue
4) Nerve tissue

Question 2

What are the classification of epithelial tissues?

Answer 2

• Simple endothelium = 1 layer cells
• Stratified Epithelium = 2 or more cell layers
• Pseudostratified Epithelium = Cells are all anchored to the basement membrane, but not all cells reach the apical surface (nuclei do not align, does not look like one cell layer).
• shape of the tip layer of cells = cuboidal, columnar and squamous.

Question 3

What are connective tissue?

Answer 3

There are two main types: connective tissue proper and specialised connective tissue

Question 4

What do connective tissue contain?

Answer 4

Many different cell types including: fibroblasts, macrophages, mast cells and adipocytes.
Connective Tissue matrix made of:
1) Ground substance - proteins and polysaccharides
2) Fibres - reticular, collagen and elastic.

Question 5

What are the classifications of connective tissue proper?

Answer 5

1) Loose connective: Fibres & many cell types in gelatinous matrix, found in skin & surrounding blood vessels, nerves and organs.
2) Dense connectives: bundles of parallel collagen fibres and fibroblasts found in tendons and ligaments.