Epithelial Tissue 2. Answer the following questions. a. stratified 1) The cells with a flat shape are named named. b. cuboidal columnar d. squamous 2) The surface of an epithelial cell which attaches to the underlying connective tissue is called the surface a. apical tissue b. basal c. connective d. bottom 3) Which of the following is NOT a function of epithelial tissue? a. protection and support b. secretion c. bind d. absorption
The Correct Answer and Explanation is :
Answer:
- a. Squamous
- b. Basal
- c. Bind
Explanation:
1. Cells with a flat shape are named squamous:
Squamous epithelial cells are characterized by their flat and scale-like shape. These cells are typically found in areas where rapid diffusion or filtration is necessary, such as in the alveoli of the lungs and the lining of blood vessels. This flatness allows for the easy passage of materials across the epithelial layer. For instance, the single layer of squamous epithelium in the lungs facilitates the exchange of gases between the air and the blood.
2. The surface of an epithelial cell which attaches to the underlying connective tissue is called the basal surface:
Epithelial tissues are composed of tightly packed cells that form sheets, and these sheets have two distinct surfaces. The apical surface is the outermost layer exposed to the external environment or the lumen of an organ. In contrast, the basal surface is the bottom layer of epithelial cells that is attached to the underlying connective tissue via the basement membrane. The basal surface is crucial because it anchors the epithelial layer, providing structural support and helping to maintain tissue integrity.
3. “Bind” is NOT a function of epithelial tissue:
Epithelial tissue serves several vital functions in the body, but “binding” is not one of them. Instead, epithelial tissue is primarily involved in protection, secretion, and absorption. For example, it forms protective layers on the skin and mucous membranes, secretes substances like mucus and enzymes, and absorbs nutrients in the digestive system. While connective tissues are responsible for binding and holding structures together, epithelial tissue does not serve this role. Instead, its key functions include forming protective barriers, facilitating exchange of materials, and supporting various secretions in organs such as glands.