short answers( Just few words) Basic bio, answer them all and I will rate you 1-
ID: 89370 • Letter: S
Question
short answers( Just few words) Basic bio, answer them all and I will rate you
1-What is the most apical stratum of the epidermis? Visceral? Which layer is not present in thick skin?
2-Thick skin has five strata and thin has four, but this is not the primary reason why thick skin is so much thicker than thin skin. What is the primary reason?
3-What is the most abundant cell in the epidermis of your skin? What other cells are located in the epidermis? In which stratum are the cells you identified located?
4-How long does it take a keratinocyte produced in the stratum germinativum to be sloughed off the surface of the epidermis?
5-What does it mean that the epidermis is avascular? Virtually all cells of the human body are within 20 µm of a capillary. Do some of the cells of the epidermis fly in the face of this general rule?
Explanation / Answer
Answer 1:
Most apical stratum of the epidermis - Stratum corneum.
Visceral stratum of the epidermis - Stratum basale.
Layer absent in thin skin - Stratum lucidum.
Answer 2:
Reason for thick skin - because it is adapted for excessive wear and tear and activities like gripping that may also cause abrasions. So to withstand these, the skin at the palms, fingertips and soles is thick and void of hair.
Answer 3:
Most abundant cell in the epidermis - Keratinocytes
Other cells located in the epidermis - Langerhans cells (also called as epidermal dendritic cells) in the stratum corneum), Merkel cells (also called as tactile cells) and melanocytes, both, in stratum basale.
Answer 4:
Long does it take a keratinocyte produced in the stratum germinativum to be sloughed off the surface of the epidermis - 35 - 40 Days
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