CHAMBERLAIN UNIVERSITY BIOS 251 EXAM 3 2026/2027 | BIOS 251
EXAM 3 QUESTIONS, STUDY GUIDE & REVIEW
Which of the following is not part of the integumentary system?
A. Epidermis
B. Cornea
C. Dermis
D. Hair
E. Sebaceous glands - Correct answer ✔✔ B. Cornea
Which of the following is not a function of the integumentary system?
A. Detection of touch
B. Nonverbal communication
C. Synthesis of vitamin K
D. Protecting underlying tissues
E. Thermoregulation - Correct answer ✔✔ C. Synthesis of vitamin K
What is the epidermis composed of?
A. Connective tissue
B. Nonkeratinized squamous epithelium
C. Papillary tissue
D. Keratinized squamous epithelium - Correct answer ✔✔ D. Keratinized squamous epithelium
Which skin layer is avascular?
A. Connective tissue
B. Epidermis
,C. Hypodermis
D. Dermis - Correct answer ✔✔ B. Epidermis
The cells of which epidermal layer contain the pale protein called eleidin?
A. Stratum spinosum
B. Stratum basale
C. Stratum lucidum
D. Stratum corneum
E. Stratum granulosum - Correct answer ✔✔ C. Stratum lucidum
Which epidermal layer contains Langerhans cells that function as macrophages engulfing
bacteria and foreign particles?
A. Stratum spinosum
B. Stratum granulosum
C. Stratum basale
D. Stratum corneum
E. Stratum lucidum - Correct answer ✔✔ A. Stratum spinosum
Receptors in the skin related to cold, pressure, pain, and vibration are related to which
function?
A. UV protection
B. Barrier to infection
C. Protection
D. Sensation
E. Vitamin D synthesis - Correct answer ✔✔ D. Sensation
Which of the following does not contribute to skin pigmentation?
,A. Carotene
B. Eumelanin
C. Keratin
D. Hemoglobin - Correct answer ✔✔ C. Keratin
Evaporation of water from the skin is a function of protection from
A. abrasions
B. thermoregulation
C. strengthening the bones
D. protection from UV light
E. expressiveness - Correct answer ✔✔ B. thermoregulation
Which of the following protects the skin against infection by microbes? Select all that apply.
A. Acid mantle
B. Dryness
C. Nerve endings
D. Vitamin D
E. Antimicrobial peptides - Correct answer ✔✔ A. Acid mantle
B. Dryness
E. Antimicrobial peptides
A patient experienced a sharp pain when they fell off the skateboard, injuring the palms of their
hands. This ability to feel pain is a function of which system?
A. Cardiovascular system
B. Proprioception
C. Endocrine system
, D. Integumentary system
E. Respiratory system - Correct answer ✔✔ D. Integumentary system
Which statements describe the functions and structures of the skin? Select all that apply.
A. Collagen is the strongest fiber in the skin.
B. Epidermal ridges combined with sweat and oil create fingerprints.
C. Blood vessels in the dermis supply the epidermis with nutrients.
D. The reticular layer promotes stretching of the skin.
E. The papillary layer is the strongest portion of the dermis. - Correct answer ✔✔ A. Collagen is
the strongest fiber in the skin.
B. Epidermal ridges combined with sweat and oil create fingerprints.
C. Blood vessels in the dermis supply the epidermis with nutrients.
E. The papillary layer is the strongest portion of the dermis.
Why are areas of the heel and adipose in the subcutaneous layer often yellowish-orange?
A. The pigment carotene is stored there.
B. The pigment hemoglobin is stored there.
C. The pigment eumelanin is stored there.
D. The pigment keratin is stored there. - Correct answer ✔✔ A. The pigment carotene is stored
there.
In which layer would a subcutaneous injection be administered?
A. Stratum basale
B. Stratum spinosum
C. Hypodermis
D. Dermis
E. Stratum corneum - Correct answer ✔✔ C. Hypodermis
EXAM 3 QUESTIONS, STUDY GUIDE & REVIEW
Which of the following is not part of the integumentary system?
A. Epidermis
B. Cornea
C. Dermis
D. Hair
E. Sebaceous glands - Correct answer ✔✔ B. Cornea
Which of the following is not a function of the integumentary system?
A. Detection of touch
B. Nonverbal communication
C. Synthesis of vitamin K
D. Protecting underlying tissues
E. Thermoregulation - Correct answer ✔✔ C. Synthesis of vitamin K
What is the epidermis composed of?
A. Connective tissue
B. Nonkeratinized squamous epithelium
C. Papillary tissue
D. Keratinized squamous epithelium - Correct answer ✔✔ D. Keratinized squamous epithelium
Which skin layer is avascular?
A. Connective tissue
B. Epidermis
,C. Hypodermis
D. Dermis - Correct answer ✔✔ B. Epidermis
The cells of which epidermal layer contain the pale protein called eleidin?
A. Stratum spinosum
B. Stratum basale
C. Stratum lucidum
D. Stratum corneum
E. Stratum granulosum - Correct answer ✔✔ C. Stratum lucidum
Which epidermal layer contains Langerhans cells that function as macrophages engulfing
bacteria and foreign particles?
A. Stratum spinosum
B. Stratum granulosum
C. Stratum basale
D. Stratum corneum
E. Stratum lucidum - Correct answer ✔✔ A. Stratum spinosum
Receptors in the skin related to cold, pressure, pain, and vibration are related to which
function?
A. UV protection
B. Barrier to infection
C. Protection
D. Sensation
E. Vitamin D synthesis - Correct answer ✔✔ D. Sensation
Which of the following does not contribute to skin pigmentation?
,A. Carotene
B. Eumelanin
C. Keratin
D. Hemoglobin - Correct answer ✔✔ C. Keratin
Evaporation of water from the skin is a function of protection from
A. abrasions
B. thermoregulation
C. strengthening the bones
D. protection from UV light
E. expressiveness - Correct answer ✔✔ B. thermoregulation
Which of the following protects the skin against infection by microbes? Select all that apply.
A. Acid mantle
B. Dryness
C. Nerve endings
D. Vitamin D
E. Antimicrobial peptides - Correct answer ✔✔ A. Acid mantle
B. Dryness
E. Antimicrobial peptides
A patient experienced a sharp pain when they fell off the skateboard, injuring the palms of their
hands. This ability to feel pain is a function of which system?
A. Cardiovascular system
B. Proprioception
C. Endocrine system
, D. Integumentary system
E. Respiratory system - Correct answer ✔✔ D. Integumentary system
Which statements describe the functions and structures of the skin? Select all that apply.
A. Collagen is the strongest fiber in the skin.
B. Epidermal ridges combined with sweat and oil create fingerprints.
C. Blood vessels in the dermis supply the epidermis with nutrients.
D. The reticular layer promotes stretching of the skin.
E. The papillary layer is the strongest portion of the dermis. - Correct answer ✔✔ A. Collagen is
the strongest fiber in the skin.
B. Epidermal ridges combined with sweat and oil create fingerprints.
C. Blood vessels in the dermis supply the epidermis with nutrients.
E. The papillary layer is the strongest portion of the dermis.
Why are areas of the heel and adipose in the subcutaneous layer often yellowish-orange?
A. The pigment carotene is stored there.
B. The pigment hemoglobin is stored there.
C. The pigment eumelanin is stored there.
D. The pigment keratin is stored there. - Correct answer ✔✔ A. The pigment carotene is stored
there.
In which layer would a subcutaneous injection be administered?
A. Stratum basale
B. Stratum spinosum
C. Hypodermis
D. Dermis
E. Stratum corneum - Correct answer ✔✔ C. Hypodermis
