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epidermis
Epidermis (noun) – Meaning, Examples & Etymology
IPA:
What does epidermis mean?
The outermost layer of skin that covers the entire body of humans and many animals.
"The epidermis protects the body from physical damage."
Detailed Meaning of Epidermis
It is a complex and highly organized tissue that provides protection from physical damage, dehydration, and pathogens. The epidermis is made up of several layers of cells, including the stratum corneum, which is composed of dead skin cells that help to create a barrier against water loss and environmental toxins. Other layers of the epidermis contain specialized cells such as melanocytes, which produce the pigment melanin responsible for skin color, and Langerhans cells, which are involved in the immune response. The epidermis also contains sensory receptors that detect touch, pressure, and temperature, making it an important component of our sense of touch. Overall, the epidermis plays a crucial role in protecting our bodies and maintaining homeostasis.
Example Sentences for Epidermis
1. The epidermis is the outermost layer of the skin, providing a protective barrier.
2. Sunburn occurs when the epidermis is damaged by excessive exposure to ultraviolet radiation.
3. The epidermis contains specialized cells called melanocytes that produce the pigment melanin.
4. The epidermis undergoes constant renewal through a process called cell turnover.
5. Skin conditions such as eczema and psoriasis can affect the epidermis, leading to inflammation and discomfort.
6. The epidermis of plants serves as a protective layer against pathogens and environmental stresses.
Origin and Etymology of Epidermis
The noun 'epidermis' has its roots in ancient Greek. It is derived from the Greek words 'epi,' meaning 'upon' or 'over,' and 'derma,' which translates to 'skin.' As such, 'epidermis' literally means 'upon the skin' or 'outer layer of the skin.' This term accurately describes the role and position of the epidermis in the human body, as it is the outermost layer of the skin that covers and protects the underlying tissues. The epidermis serves as a crucial barrier against external elements and helps regulate various bodily functions, making its name a fitting reflection of its function and location.
Quiz Question - Test Your Understanding
Find the correct meaning of the noun epidermis:
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More Usage Examples of Epidermis
1. The epidermis of leaves contains tiny openings called stomata, which regulate gas exchange.
2. The epidermis of fish is covered in scales, providing protection and reducing friction in water.
3. A cut or wound that penetrates the epidermis may require stitches or other forms of medical attention.
4. The epidermis of reptiles plays a role in thermoregulation, helping them maintain body temperature.
5. The epidermis of insects is composed of a tough, chitinous exoskeleton.
6. The epidermis of fruits and vegetables can be peeled off to reveal the edible portion.
7. The epidermis of amphibians allows for gas exchange through the process of cutaneous respiration.
8. The epidermis of humans varies in thickness in different parts of the body, such as the palms and soles.
9. The epidermis of certain marine organisms, like coral, provides protection against harmful UV radiation.
10. The epidermis of snakes sheds periodically as they grow, enabling them to accommodate their increasing size.
11. The epidermis of birds is covered in feathers, serving various functions including insulation and flight.
12. The epidermis of arthropods, such as spiders and crustaceans, consists of a hard exoskeleton.
13. The epidermis of mammals contains hair follicles, which produce hair for insulation and sensory purposes.
14. The epidermis of certain plants, like cacti, is thick and waxy to reduce water loss in arid environments.
15. The epidermis is the outermost layer of skin.
16. The epidermis helps to prevent dehydration.
17. The epidermis acts as a barrier against pathogens.
18. The stratum corneum is a layer of the epidermis composed of dead skin cells.
19. The stratum corneum helps to create a barrier against water loss.
20. Melanocytes are specialized cells found in the epidermis.
21. Melanocytes produce the pigment melanin responsible for skin color.
22. Langerhans cells are immune cells found in the epidermis.
23. Langerhans cells are involved in the immune response.
24. The epidermis contains sensory receptors that detect touch.
25. The epidermis is a crucial component of our sense of touch.
Synonyms and Related Words for Epidermis
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✔ Add 3,700 must-know words to your vocabulary.
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✔ 147 categorized lessons, 428 practical activities, 632 pages.
✔ Suitable for students & professionals of all ages.
✔ Ideal preparation for: TOEFL, TOEIC, IELTS, SAT, ACT, GRE, GMAT