Integumentary Vocabulary 1 & 2

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Across
  1. 4. The epidermal layer above the stratum spinosum, where cells flatten, accumulate keratin-related materials, and begin to die.
  2. 5. A pigment produced by melanocytes that contributes to skin, hair, and eye color and helps protect skin cells from ultraviolet radiation.
  3. 9. A thin, clear epidermal layer found in thick skin, especially on the palms and soles, between the stratum granulosum and stratum corneum.
  4. 10. The serous membrane associated with the lungs; one layer covers the lungs and another lines the thoracic cavity.
  5. 12. A thin membrane lining body cavities closed to the exterior and covering organs; it produces fluid that reduces friction.
  6. 13. The skin and underlying tissue beneath the nail plate that supports the nail and contains blood vessels.
  7. 14. A tough structural protein in the epidermis, hair, and nails that adds strength and water resistance.
  8. 17. A membrane lining passages that open to the exterior; it secretes mucus to protect and lubricate the lining.
  9. 18. The part of a hair projecting above the skin surface, made mainly of dead, keratinized cells.
  10. 19. Cells that produce melanin, found mainly in the stratum basale of the epidermis.
  11. 20. The epidermal layer above the stratum basale; its connected cells can look spiny in prepared tissue samples.
Down
  1. 1. The outermost epidermal layer, made mostly of flattened, dead cells filled with keratin that form a protective barrier.
  2. 2. The part of a hair below the skin surface, located within the follicle; hair growth occurs at its base.
  3. 3. A small smooth muscle attached to a hair follicle; when it contracts, it raises the hair and can cause goose bumps.
  4. 6. A screening guide for possible melanoma warning signs: asymmetry, irregular border, color variation, and diameter; the expanded ABCDE guide adds evolving. It is not a diagnosis.
  5. 7. The skin, the body’s external covering, made up of the epidermis and dermis.
  6. 8. Fingerlike projections of the dermis into the epidermis that strengthen their connection and contribute to friction ridges.
  7. 11. The membrane sac surrounding the heart; its serous layers help reduce friction as the heart beats.
  8. 15. The deepest epidermal layer, where cells divide to replace epidermal cells; melanocytes are also found there.
  9. 16. The serous membrane lining the abdominopelvic cavity and covering many of its organs.