Emory Wound Exam 1 Skin Structure
Wound Healing Pressure Injury Prevention
Official Practice Exam Actual Exam
2026/2027 with Detailed Rationales |
Complete Exam-Style Questions | Pass
Guaranteed – A+ Graded
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SECTION 1: SKIN ANATOMY & PHYSIOLOGY Q1 – Q10
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Question 1 of 50
A 68-year-old man recovering from hip surgery in acute care has dry, flaky skin on his lower
extremities. The wound care nurse explains that the skin's barrier function depends most
critically on which structural component?
A. Melanocytes in the stratum basale
B. Lipids between corneocytes in the stratum corneum ✓ CORRECT
C. Collagen fibers in the reticular dermis
D. Langerhans cells in the stratum spinosum
Correct Answer: B
Rationale: The stratum corneum functions as the primary skin barrier through its
brick-and-mortar structure, where corneocytes are held together by intercellular lipids that
prevent transepidermal water loss and block pathogen entry. Collagen fibers provide tensile
strength in the dermis but do not regulate barrier function or moisture retention. In aging skin,
decreased lipid production contributes to xerosis and increased susceptibility to barrier
disruption.
Question 2 of 50
A 54-year-old woman sustains a superficial burn to her forearm that blanches with pressure
and heals within 7 days without scarring. The wound care nurse identifies that the injury is
confined primarily to which layer?
A. Subcutaneous adipose tissue
,B. Reticular dermis
C. Papillary dermis
D. Epidermis ✓ CORRECT
Correct Answer: D
Rationale: Superficial burns involve only the epidermis, specifically from the stratum corneum
through the stratum basale, and heal by regeneration of epithelial cells from the basal layer
without collagen deposition or scar formation. Injury extending into the papillary dermis
would produce blistering and alter the healing trajectory, as dermal involvement triggers the
inflammatory cascade and collagen remodeling that lead to scar formation.
Question 3 of 50
During a skin assessment of a 45-year-old patient with a chronic venous ulcer, the nurse
palpates a firm, rubbery texture around the wound edges. This texture is most directly
produced by which dermal cell type?
A. Fibroblasts ✓ CORRECT
B. Melanocytes
C. Keratinocytes
D. Adipocytes
Correct Answer: A
Rationale: Fibroblasts are the primary cells in the dermis responsible for producing collagen,
elastin, and extracellular matrix components that give skin its structural integrity and firm
texture. Keratinocytes are epidermal cells that produce keratin and form the outer barrier,
while melanocytes synthesize pigment and do not contribute to dermal structural texture.
Question 4 of 50
A 72-year-old patient in a nursing home has senile purpura on the forearms. The nurse
recognizes that this finding results from age-related deterioration of which dermal structure?
A. Sebaceous glands
B. Eccrine sweat glands
C. Collagen and elastin fibers ✓ CORRECT
D. Merkel cell discs
Correct Answer: C
Rationale: Senile purpura occurs when age-related degradation of collagen and elastin fibers
in the dermis weakens the structural support around capillaries, allowing them to rupture with
minor trauma. Sebaceous gland atrophy leads to dryness and decreased acid mantle
protection, but it does not cause the vascular fragility that produces purpura.
, Question 5 of 50
A wound care nurse is teaching a group of nursing students about the skin's acid mantle. The
nurse correctly explains that this protective barrier is maintained by secretions from which
structure?
A. Apocrine sweat glands
B. Sebaceous glands ✓ CORRECT
C. Pacinian corpuscles
D. Arrector pili muscles
Correct Answer: B
Rationale: The acid mantle is a thin protective film on the skin surface with a pH of
approximately 4.5 to 5.5, formed primarily by the combination of sebum from sebaceous
glands and sweat from eccrine glands, which inhibits bacterial colonization and maintains
barrier integrity. Pacinian corpuscles are deep pressure receptors and play no role in
chemical barrier maintenance.
Question 6 of 50
A 35-year-old patient with a full-thickness wound is found to have minimal granulation tissue
formation after 2 weeks. The nurse suspects impaired function of which cell type that is
most critical for producing the extracellular matrix in this phase?
A. Neutrophils
B. Keratinocytes
C. Mast cells
D. Fibroblasts ✓ CORRECT
Correct Answer: D
Rationale: Fibroblasts migrate into the wound during the proliferative phase and synthesize
collagen, fibronectin, and glycosaminoglycans that form granulation tissue, providing the
scaffold for epithelialization and wound contraction. Neutrophils are primarily active during
the inflammatory phase for phagocytosis and do not produce collagen or granulation matrix.
Question 7 of 50
During a routine skin assessment, the nurse notes that a patient's skin returns slowly to its
original position after being gently pinched and released. This finding indicates decreased
function of which dermal component?
A. Elastin fibers ✓ CORRECT
B. Collagen fibers
C. Ground substance
Wound Healing Pressure Injury Prevention
Official Practice Exam Actual Exam
2026/2027 with Detailed Rationales |
Complete Exam-Style Questions | Pass
Guaranteed – A+ Graded
══════════════════════════════════════
SECTION 1: SKIN ANATOMY & PHYSIOLOGY Q1 – Q10
══════════════════════════════════════
Question 1 of 50
A 68-year-old man recovering from hip surgery in acute care has dry, flaky skin on his lower
extremities. The wound care nurse explains that the skin's barrier function depends most
critically on which structural component?
A. Melanocytes in the stratum basale
B. Lipids between corneocytes in the stratum corneum ✓ CORRECT
C. Collagen fibers in the reticular dermis
D. Langerhans cells in the stratum spinosum
Correct Answer: B
Rationale: The stratum corneum functions as the primary skin barrier through its
brick-and-mortar structure, where corneocytes are held together by intercellular lipids that
prevent transepidermal water loss and block pathogen entry. Collagen fibers provide tensile
strength in the dermis but do not regulate barrier function or moisture retention. In aging skin,
decreased lipid production contributes to xerosis and increased susceptibility to barrier
disruption.
Question 2 of 50
A 54-year-old woman sustains a superficial burn to her forearm that blanches with pressure
and heals within 7 days without scarring. The wound care nurse identifies that the injury is
confined primarily to which layer?
A. Subcutaneous adipose tissue
,B. Reticular dermis
C. Papillary dermis
D. Epidermis ✓ CORRECT
Correct Answer: D
Rationale: Superficial burns involve only the epidermis, specifically from the stratum corneum
through the stratum basale, and heal by regeneration of epithelial cells from the basal layer
without collagen deposition or scar formation. Injury extending into the papillary dermis
would produce blistering and alter the healing trajectory, as dermal involvement triggers the
inflammatory cascade and collagen remodeling that lead to scar formation.
Question 3 of 50
During a skin assessment of a 45-year-old patient with a chronic venous ulcer, the nurse
palpates a firm, rubbery texture around the wound edges. This texture is most directly
produced by which dermal cell type?
A. Fibroblasts ✓ CORRECT
B. Melanocytes
C. Keratinocytes
D. Adipocytes
Correct Answer: A
Rationale: Fibroblasts are the primary cells in the dermis responsible for producing collagen,
elastin, and extracellular matrix components that give skin its structural integrity and firm
texture. Keratinocytes are epidermal cells that produce keratin and form the outer barrier,
while melanocytes synthesize pigment and do not contribute to dermal structural texture.
Question 4 of 50
A 72-year-old patient in a nursing home has senile purpura on the forearms. The nurse
recognizes that this finding results from age-related deterioration of which dermal structure?
A. Sebaceous glands
B. Eccrine sweat glands
C. Collagen and elastin fibers ✓ CORRECT
D. Merkel cell discs
Correct Answer: C
Rationale: Senile purpura occurs when age-related degradation of collagen and elastin fibers
in the dermis weakens the structural support around capillaries, allowing them to rupture with
minor trauma. Sebaceous gland atrophy leads to dryness and decreased acid mantle
protection, but it does not cause the vascular fragility that produces purpura.
, Question 5 of 50
A wound care nurse is teaching a group of nursing students about the skin's acid mantle. The
nurse correctly explains that this protective barrier is maintained by secretions from which
structure?
A. Apocrine sweat glands
B. Sebaceous glands ✓ CORRECT
C. Pacinian corpuscles
D. Arrector pili muscles
Correct Answer: B
Rationale: The acid mantle is a thin protective film on the skin surface with a pH of
approximately 4.5 to 5.5, formed primarily by the combination of sebum from sebaceous
glands and sweat from eccrine glands, which inhibits bacterial colonization and maintains
barrier integrity. Pacinian corpuscles are deep pressure receptors and play no role in
chemical barrier maintenance.
Question 6 of 50
A 35-year-old patient with a full-thickness wound is found to have minimal granulation tissue
formation after 2 weeks. The nurse suspects impaired function of which cell type that is
most critical for producing the extracellular matrix in this phase?
A. Neutrophils
B. Keratinocytes
C. Mast cells
D. Fibroblasts ✓ CORRECT
Correct Answer: D
Rationale: Fibroblasts migrate into the wound during the proliferative phase and synthesize
collagen, fibronectin, and glycosaminoglycans that form granulation tissue, providing the
scaffold for epithelialization and wound contraction. Neutrophils are primarily active during
the inflammatory phase for phagocytosis and do not produce collagen or granulation matrix.
Question 7 of 50
During a routine skin assessment, the nurse notes that a patient's skin returns slowly to its
original position after being gently pinched and released. This finding indicates decreased
function of which dermal component?
A. Elastin fibers ✓ CORRECT
B. Collagen fibers
C. Ground substance
