BIOD 151 Module 3 Exam
Integumentary System & Skin Anatomy | Comprehensive Review
Question 1. The integumentary system consists of the skin and which accessory
structures?
A. Hair, nails, and glands ✓
B. Bones and joints only
C. Muscles only
Question 2. The epidermis is composed of which tissue type?
A. Stratified squamous epithelium ✓
B. Dense connective tissue
C. Simple columnar epithelium
Question 3. The dermis is composed primarily of which tissue type?
A. Dense irregular connective tissue ✓
B. Stratified squamous epithelium
C. Adipose tissue only
Question 4. The hypodermis (subcutaneous layer) is composed mainly of:
A. Areolar and adipose connective tissue ✓
B. Stratified epithelium
C. Bone tissue
Question 5. Which epidermal layer is the deepest and contains actively dividing
stem cells?
A. Stratum basale ✓
B. Stratum corneum
C. Stratum lucidum
Question 6. Which epidermal layer is the outermost and consists of dead,
keratinized cells?
A. Stratum corneum ✓
B. Stratum basale
C. Stratum granulosum
Question 7. The stratum lucidum is found only in which type of skin?
A. Thick skin (palms and soles) ✓
, B. Thin skin covering most of the body
C. Mucous membranes
Question 8. Which epidermal layer shows visible keratohyaline granules involved
in keratinization?
A. Stratum granulosum ✓
B. Stratum basale
C. Stratum corneum
Question 9. The stratum spinosum gets its 'spiny' appearance from:
A. Desmosomes connecting adjacent keratinocytes ✓
B. Melanin granules
C. Collagen fibers
Question 10. Which cell type makes up the vast majority of epidermal cells?
A. Keratinocytes ✓
B. Melanocytes
C. Langerhans cells
Question 11. Melanocytes are located primarily in which epidermal layer?
A. Stratum basale ✓
B. Stratum corneum
C. Stratum lucidum
Question 12. Melanin production functions primarily to:
A. Protect underlying tissue from UV radiation damage ✓
B. Provide structural strength to the epidermis
C. Regulate body temperature
Question 13. Langerhans cells within the epidermis function primarily in:
A. Immune surveillance and antigen presentation ✓
B. Melanin production
C. Sensory perception
Question 14. Merkel cells within the epidermis function in:
A. Light touch sensation ✓
B. Melanin production
C. Immune defense
Question 15. Keratin, the primary protein of the epidermis, provides the skin with:
A. Toughness and water resistance ✓
, B. Elasticity only
C. Pigmentation
Question 16. The process by which epidermal cells fill with keratin and die as they
move toward the surface is called:
A. Keratinization ✓
B. Melanogenesis
C. Vasoconstriction
Question 17. The dermis is composed of which two distinct layers?
A. Papillary layer and reticular layer ✓
B. Basale layer and corneum layer
C. Epidermal and hypodermal layers
Question 18. The papillary layer of the dermis is characterized by:
A. Areolar connective tissue with dermal papillae ✓
B. Dense, thick collagen bundles only
C. Adipose tissue predominance
Question 19. Dermal papillae function to:
A. Increase the surface area between the epidermis and dermis,
enhancing nutrient exchange ✓
B. Produce melanin
C. Store excess fat
Question 20. Fingerprints are formed as a result of:
A. Dermal papillae projecting into the epidermis ✓
B. Random melanin deposits
C. Sebaceous gland patterns
Question 21. The reticular layer of the dermis primarily consists of:
A. Dense irregular connective tissue ✓
B. Simple squamous epithelium
C. Loose areolar tissue only
Question 22. Which dermal structures are responsible for the skin's tensile strength
and elasticity?
A. Collagen and elastin fibers ✓
B. Keratinocytes
C. Melanocytes
Integumentary System & Skin Anatomy | Comprehensive Review
Question 1. The integumentary system consists of the skin and which accessory
structures?
A. Hair, nails, and glands ✓
B. Bones and joints only
C. Muscles only
Question 2. The epidermis is composed of which tissue type?
A. Stratified squamous epithelium ✓
B. Dense connective tissue
C. Simple columnar epithelium
Question 3. The dermis is composed primarily of which tissue type?
A. Dense irregular connective tissue ✓
B. Stratified squamous epithelium
C. Adipose tissue only
Question 4. The hypodermis (subcutaneous layer) is composed mainly of:
A. Areolar and adipose connective tissue ✓
B. Stratified epithelium
C. Bone tissue
Question 5. Which epidermal layer is the deepest and contains actively dividing
stem cells?
A. Stratum basale ✓
B. Stratum corneum
C. Stratum lucidum
Question 6. Which epidermal layer is the outermost and consists of dead,
keratinized cells?
A. Stratum corneum ✓
B. Stratum basale
C. Stratum granulosum
Question 7. The stratum lucidum is found only in which type of skin?
A. Thick skin (palms and soles) ✓
, B. Thin skin covering most of the body
C. Mucous membranes
Question 8. Which epidermal layer shows visible keratohyaline granules involved
in keratinization?
A. Stratum granulosum ✓
B. Stratum basale
C. Stratum corneum
Question 9. The stratum spinosum gets its 'spiny' appearance from:
A. Desmosomes connecting adjacent keratinocytes ✓
B. Melanin granules
C. Collagen fibers
Question 10. Which cell type makes up the vast majority of epidermal cells?
A. Keratinocytes ✓
B. Melanocytes
C. Langerhans cells
Question 11. Melanocytes are located primarily in which epidermal layer?
A. Stratum basale ✓
B. Stratum corneum
C. Stratum lucidum
Question 12. Melanin production functions primarily to:
A. Protect underlying tissue from UV radiation damage ✓
B. Provide structural strength to the epidermis
C. Regulate body temperature
Question 13. Langerhans cells within the epidermis function primarily in:
A. Immune surveillance and antigen presentation ✓
B. Melanin production
C. Sensory perception
Question 14. Merkel cells within the epidermis function in:
A. Light touch sensation ✓
B. Melanin production
C. Immune defense
Question 15. Keratin, the primary protein of the epidermis, provides the skin with:
A. Toughness and water resistance ✓
, B. Elasticity only
C. Pigmentation
Question 16. The process by which epidermal cells fill with keratin and die as they
move toward the surface is called:
A. Keratinization ✓
B. Melanogenesis
C. Vasoconstriction
Question 17. The dermis is composed of which two distinct layers?
A. Papillary layer and reticular layer ✓
B. Basale layer and corneum layer
C. Epidermal and hypodermal layers
Question 18. The papillary layer of the dermis is characterized by:
A. Areolar connective tissue with dermal papillae ✓
B. Dense, thick collagen bundles only
C. Adipose tissue predominance
Question 19. Dermal papillae function to:
A. Increase the surface area between the epidermis and dermis,
enhancing nutrient exchange ✓
B. Produce melanin
C. Store excess fat
Question 20. Fingerprints are formed as a result of:
A. Dermal papillae projecting into the epidermis ✓
B. Random melanin deposits
C. Sebaceous gland patterns
Question 21. The reticular layer of the dermis primarily consists of:
A. Dense irregular connective tissue ✓
B. Simple squamous epithelium
C. Loose areolar tissue only
Question 22. Which dermal structures are responsible for the skin's tensile strength
and elasticity?
A. Collagen and elastin fibers ✓
B. Keratinocytes
C. Melanocytes
