Podcast
Questions and Answers
What percentage of cells in the epidermis are keratinocytes?
What percentage of cells in the epidermis are keratinocytes?
- At least 90%
- At least 70%
- At least 60%
- At least 80% (correct)
What is the main function of the keratin filaments in the keratinocytes?
What is the main function of the keratin filaments in the keratinocytes?
- To provide structural support to the cell (correct)
- To facilitate cell division
- To enable intercellular communication
- To transport nutrients and organelles
Where are the basal cells located in the epidermis?
Where are the basal cells located in the epidermis?
- Dispersed throughout the epidermis
- In the innermost layer (correct)
- In the middle layer
- In the outermost layer
What is the primary function of the basal cells in the epidermis?
What is the primary function of the basal cells in the epidermis?
What is the purpose of the desmosomes in the epidermis?
What is the purpose of the desmosomes in the epidermis?
What distinguishing feature of the basal cells is mentioned in the text?
What distinguishing feature of the basal cells is mentioned in the text?
What is the primary location of mitotically active cells in the epidermis?
What is the primary location of mitotically active cells in the epidermis?
Which type of cells in the epidermis have a long lifespan and progress through the cell cycle very slowly?
Which type of cells in the epidermis have a long lifespan and progress through the cell cycle very slowly?
What are the membrane-bound organelles containing glycoproteins, glycolipids, and hydrolytic enzymes called?
What are the membrane-bound organelles containing glycoproteins, glycolipids, and hydrolytic enzymes called?
Which layer of the epidermis is composed of flattened cells holding abundant keratohyaline granules?
Which layer of the epidermis is composed of flattened cells holding abundant keratohyaline granules?
Under what condition can hyperplasia occur in the epidermis?
Under what condition can hyperplasia occur in the epidermis?
What kind of layer is the most superficial layer of the epidermis, containing living cells?
What kind of layer is the most superficial layer of the epidermis, containing living cells?
