Collagen and Skin Layers

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Questions and Answers

Which type of sweat gland responds to environmental changes and is found on the neck, back, and forehead?

  • Melanocytes
  • Sebaceous glands
  • Apocrine glands
  • Eccrine glands (correct)

What is the function of sebum (skin oil)?

  • To protect from water loss (correct)
  • To decrease the amount of UV light that penetrates the skin
  • To attach to and make sweat
  • To produce pigments

Where are melanocytes found in the skin?

  • In the epidermis
  • In the stratum basale (correct)
  • In the dermis
  • In the subcutaneous layer

What is the main function of melanocytes?

<p>To produce pigments and decrease UV light penetration (B)</p> Signup and view all the answers

Which type of melanin is produced by darker skinned and darker haired people?

<p>Eumelanin (D)</p> Signup and view all the answers

What is the main source of melanin production in the skin?

<p>Melanocytes (D)</p> Signup and view all the answers

Where are melanosomes arranged in the skin?

<p>Around the nucleus of keratinocytes (B)</p> Signup and view all the answers

What is the purpose of melanosomes in the skin?

<p>To protect the nucleus from UV radiation (A)</p> Signup and view all the answers

What accounts for variations in skin color among individuals?

<p>The amount and type of melanin produced (B)</p> Signup and view all the answers

Which layer of the skin is responsible for sensory reception and temperature control?

<p>Dermis (B)</p> Signup and view all the answers

What is the function of collagen in the connective tissue?

<p>Provides both flexibility and strength (A)</p> Signup and view all the answers

Which layer of the epidermis is composed of several layers of rough, flake-like dead cells?

<p>Stratum corneum (D)</p> Signup and view all the answers

Which layer of the epidermis is absent in thin skin?

<p>Stratum lucidum (A)</p> Signup and view all the answers

What is the function of the subcutaneous tissue (hypodermis)?

<p>Protects body heat (D)</p> Signup and view all the answers

Which layer of the skin is avascular, meaning it has no blood supply?

<p>Epidermis (A)</p> Signup and view all the answers

What is the function of the stratum granulosum in the epidermis?

<p>Contains keratohyalin granules (A)</p> Signup and view all the answers

Which layer of the epidermis is responsible for new cell production?

<p>Stratum basale (B)</p> Signup and view all the answers

What type of connective tissue is found in the subcutaneous tissue (hypodermis)?

<p>Loose fibrous connective tissue (D)</p> Signup and view all the answers

Which layer of the skin provides flexible strength to tissues?

<p>Dermis (D)</p> Signup and view all the answers

Which layer of the skin is responsible for producing sweat and sebum?

<p>Epidermis (A)</p> Signup and view all the answers

Which layer of the skin is thicker and deeper, also known as the 'true skin'?

<p>Dermis (A)</p> Signup and view all the answers

Which layer of the skin is avascular, meaning it lacks a blood supply?

<p>Epidermis (B)</p> Signup and view all the answers

What type of tissue is the subcutaneous tissue (hypodermis) made of?

<p>Loose fibrous connective tissue (C)</p> Signup and view all the answers

Which layer of the epidermis is responsible for new cell production?

<p>Stratum basale (A)</p> Signup and view all the answers

Which layer of the epidermis is composed of several layers of rough, flake-like dead cells?

<p>Stratum corneum (B)</p> Signup and view all the answers

Where are melanosomes arranged in the skin?

<p>Epidermis (B)</p> Signup and view all the answers

What is the function of collagen in the connective tissue?

<p>Provides flexible strength to tissues (C)</p> Signup and view all the answers

Which type of sweat gland responds to emotional stress and is found in genital areas and axilla?

<p>Apocrine (B)</p> Signup and view all the answers

Which layer of the epidermis contains melanocytes and is responsible for producing pigments that protect the skin from UV light?

<p>Stratum basale (B)</p> Signup and view all the answers

What is the main function of sebum (skin oil)?

<p>To keep the hair and skin soft and pliant (C)</p> Signup and view all the answers

Which type of melanin is produced by lighter skinned and lighter haired people?

<p>Pheomelanin (D)</p> Signup and view all the answers

Where are melanosomes arranged in the skin?

<p>Stratum corneum (D)</p> Signup and view all the answers

What is the function of collagen in the connective tissue?

<p>To provide strength and support (A)</p> Signup and view all the answers

Which layer of the epidermis is composed of several layers of rough, flake-like dead cells?

<p>Stratum corneum (B)</p> Signup and view all the answers

What accounts for variations in skin color among individuals?

<p>Amount and type of melanin produced (B)</p> Signup and view all the answers

What is the main source of melanin production in the skin?

<p>Melanocytes (D)</p> Signup and view all the answers

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