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MD Dermatology Biology — practice by topic

Browse 30 questions across 3 Biology topics. Choose what you want to revise, then open a question to check its answer and worked solution.

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Biology topics

Biology (30)Dermatology (30)Skin Structure and Appendages (30)

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Under a microscope, the epidermis is keratinised stratified squamous:Read the answer and worked solution →The epidermis of thick skin, such as the palm, has how many layers?Read the answer and worked solution →The extra layer found only in thick skin is the stratum:Read the answer and worked solution →A cell that manufactures and stores keratin is called a:Read the answer and worked solution →

Worked practice questions

Under a microscope, the epidermis is keratinised stratified squamous:

  1. Epithelium
  2. Endothelium
  3. Epiphysium
  4. Endosteum
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Correct answer: A. Epithelium

1. It is a covering tissue in many layers. 2. The surface cells are flat and keratin filled. 3. That tissue is epithelium. _Source: OpenStax Anatomy and Physiology 2e, Chapter 5, The Integumentary System._

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The epidermis of thick skin, such as the palm, has how many layers?

  1. Three
  2. Five
  3. Seven
  4. Eight
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Correct answer: B. Five

1. Thin skin has four layers. 2. Thick skin adds the stratum lucidum. 3. So it has five layers. _Source: OpenStax Anatomy and Physiology 2e, Chapter 5, The Integumentary System._

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The extra layer found only in thick skin is the stratum:

  1. Lucidum
  2. Ludicrous
  3. Lubricant
  4. Luminance
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Correct answer: A. Lucidum

1. It sits between corneum and granulosum. 2. It is clear in appearance. 3. That layer is the stratum lucidum. _Source: OpenStax Anatomy and Physiology 2e, Chapter 5, The Integumentary System._

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