Anatomy & Physiology › Section E · The integumentary system › Topic E.2
Hair, nails, and skin glands
Hair, nails, sweat glands and oil glands all grow from the epidermis down into the dermis. Each is built from the same raw materials as skin, keratinocytes and secretory cells, yet each is shaped for a different job: sensing, protecting, cooling or waterproofing.
In this topic
- Accessory structures of the skin
- The parts of a hair
- How hair grows and gets its colour
- What hair does
- The hair growth cycle
- Worked example: how long can hair grow?
- Nails
- Sweat glands
- Sebaceous glands and modified glands
- Worked example: matching secretions to glands
- Common mistakes to avoid
- Key takeaways
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