WorksheetsThe Integumentary System
Total questions: 40
Worksheet time: 20mins
What is the largest organ in the human body?
Heart
Skin
Liver
Brain
The integument, or skin, makes up what percentage of body weight?
10%
16%
25%
5%
Match the following tissues to their correct type:
Fat storage
Protective outer layer
Loose connective tissue
Loose connective tissue
Protective outer layer
Strong, irregular support
Strong, irregular support
Fat storage
The skin is a membrane made of multiple tissues that serve as a boundary.
True
False
Which of the following are accessory structures of the skin?
Hair
Nails
Glands
All of the above
The skin contains sensory receptors (nerve endings) that detect which of the following?
Touch
Pressure
Pain
Temperature stimulation
All of the above
Which of the following is NOT secreted by the skin?
Salt
Water
Organic wastes
Oxygen
Milk (in women)
Match the following functions of skin with their descriptions:
Protection
Insulation prevents hypothermia while heat release via sweat prevents overheating.
Homeostasis
Barrier against impact, chemical exposure, infection, sunlight, and the escape of body fluid.
Energy Storage
Largest deposit of adipose is found under the skin.
Sensation
The skin contains sensory receptors that detect touch, pressure, pain, and temperature stimulation.
Secretion
Release of salt, water, organic wastes, and milk (in women).
What determines the composition of the epidermis in the body?
The age of the person
The location in the body
The amount of sunlight exposure
The thickness of the dermis
Areas of thick skin contain five cell layers. Where are these areas found?
A) Palms of hands, soles of feet
B) Arms and legs
C) Face and neck
D) Back and chest
Areas of thin skin contain four cell layers. Where are these areas found?
Only on the face
All other locations in the body
Only on the arms
Only on the legs
Which layer of the epidermis is the deepest?
Stratum corneum
Stratum spinosum
Stratum basale
Stratum granulosum
What type of cells are present in the stratum basale that produce pigment?
Keratinocytes
Melanocytes
Fibroblasts
Langerhans cells
How do we get our skin color?
Type of melanin
Amount of melanin
Number of melanocytes
All of the above
Lighter skin allows for faster vitamin D production in skin and is an advantage in higher latitudes.
True
False
Darker skin provides more UV protection and is an advantage near the equator.
True
False
Cells in the stratum corneum are , Select all that apply.
dead
flattened
keratinized
What is cyanosis?
Bluing of the skin caused by poor circulation or low oxygen levels in the blood
Yellowing of the skin due to the liver not filtering bilirubin
Genetic disorder that prevents the body from making melanin
What is jaundice?
Bluing of the skin caused by poor circulation or low oxygen levels in the blood
Yellowing of the skin due to the liver not filtering bilirubin, a product of red blood cell metabolism
Genetic disorder that prevents the body from making melanin
What is albinism?
Bluing of the skin caused by poor circulation or low oxygen levels in the blood
Yellowing of the skin due to the liver not filtering bilirubin
Genetic disorder that prevents the body from making melanin
Match the skin cancer type with its description:
Moles
Benign tumors that develop from melanocytes
Basal Cell Carcinoma
Originate in the stratum basale
Squamous Cell Carcinoma
Originate in the squamous (flattened) cells of the stratum spinosum
Melanoma
Malignant tumors that develop from melanocytes
Which of the following is NOT a particle found in dust as shown in the diagram?
Skin scale
Hair
Insect fragment
Metal shavings
According to the ABCDE rule, which feature is used to differentiate cancerous moles from noncancerous moles?
Border irregularity
Asymmetry
Color change
Evolution or change over time
All of the above
Arrector pili muscles serve no purpose in humans but make other animals appear larger when threatened.
True
False
Match the following terms to their correct definitions:
Sebaceous gland
Oil-secreting gland
Arrector pili
Muscle that causes hair to stand upright
Hair root
Living cells at the base of the hair
Hair shaft
Dead cells above the skin surface
The types and amounts of melanin produced in the hair follicle determine what a person's natural hair color will be. Which type of melanin is associated with black/brown hair color?
High amounts of eumelanin
Low amounts of eumelanin
Pheomelanin mixed with eumelanin
Air bubbles
Which of the following is NOT a function of sebaceous glands?
Prevents drying out
Is antibacterial
Produces melanin
Sebum production increases with hormone secretion during puberty
Whiteheads are infected, while blackheads just contain oil.
True
False
Match the following skin structures to their correct labels:
Epidermis
A
Dermis
B
Hypodermis
C
Sebaceous Gland
D
Merocrine Sweat Gland
E
Label the parts of the nail:
Stratum Corneum
Stratum Corneum
Nail Body
Nail Body
Bone
Bone
Refer to the diagram of the nail structure. Which part of the nail is responsible for producing new nail cells?
Nail Root
Nail Matrix
Cuticle
Nail Body
The cuticle is an overlap of the stratum corneum that keeps bacteria out of the nail root.
True
False
Which part of the nail contains stem cells that continuously divide?
A) Nail Bed
B) Nail Matrix
C) Cuticle
D) Nail Body
Hematomas are bruises that break open blood vessels in the dermis.
True
False
What are burns?
Damage and cell death caused by intense heat, electricity, UV radiation, or certain chemicals
Damage caused only by cold temperatures
Damage caused only by bacteria
Damage caused only by viruses
Dehydration due to burns can lead to shutdown of the kidneys and circulatory shock.
True
False
Match the degree of burn with its description:
Only epidermis is damaged, skin is red and painful
First Degree
Epidermis and upper dermis, blistering
Second Degree
Epidermis and full dermis, white or blackened, painless due to nerve damage
Third Degree
Integument, subcutaneous, and underlying tissues
Fourth Degree
Which degree of burn is characterized by blistering and affects the epidermis and upper dermis?
First Degree
Second Degree
Third Degree
Fourth Degree
Which degree of burn is painless due to nerve damage?
First Degree
Second Degree
Third Degree
Fourth Degree
Effects of aging on the epidermis include:
Increased cell division
Less melanin produced
More prone to bruising, sunburn, and heat loss
Both B and C
