Identifying Epidermal Cells in Human Skin
The question asks to identify cells primarily located within the epidermis of healthy human skin. The epidermis is the outermost layer of the skin.
Primary Epidermal Cells
- Keratinocytes: These are the most common cells, making up about 95% of the epidermis. They produce keratin, a tough protein that provides protection, and form multiple layers within the epidermis.
- Melanocytes: Located in the basal layer of the epidermis, these cells produce the pigment melanin, which gives skin its color and helps protect it from UV radiation.
Cells Not Found Primarily in the Epidermis
- Oxyntic cells (also known as Parietal cells): These cells are found in the lining of the stomach and are responsible for producing hydrochloric acid. They are not located in the skin's epidermis.
- Goblet cells: These cells are typically found in the mucous membranes of the respiratory and intestinal tracts. They secrete mucus and are not present in the epidermis.
Therefore, Keratinocytes and Melanocytes are the cells primarily located in the epidermis of healthy human skin.
Important Questions from Tissues
- Given the following statements, which one of the options is correct?
Statement (i): Histology is the study of histones
Statement (ii): Cytology is the study of tissues - Consider the following layers: subcutaneous fat, viable epidermis, stratum corneum, and dermis. Which one of the following represents the correct sequence of the layers from skin surface to within?
A patient is unable to move their arm voluntarily, but the arm still shows rhythmic contractions during sleep. Based on your understanding of muscular tissue, which tissue types are most likely involved in this phenomenon?
A botanist is attempting to genetically modify a crop plant to increase its height and repair capability after damage. Which plant tissue should she focus on enhancing to make the plant more effective?
Which of the following is not a connective tissue in animals?
