Advanced Biology
Worksheet 1
Integumentary System
Choose the Correct Answer:
Q1. A major function of skin is protection from:
a)
b)
c)
d)
Abrasion
UV light
Entry of microorganisms
All of the above
Q2. The waterproofing protein that fills the cells in the upper layers of the epidermis.
a)
b)
c)
d)
Keratin
Melatonin
Melanin
Actin
Q. Which is NOT a function of the skin?
a)
b)
c)
d)
Temperature Regulation
Movement
Excretion
Vitamin D Production
Q. Melanocytes are located in the ___________.
a) Hypodermis
b) Dermis
c) Epidermis
Q. The type of cell that produces melanin, which protects us against harmful UV rays.
a)
b)
c)
d)
Keratinocytes
Melanocytes
Eccrinocytes
Melatonin
Q. This gland releases an oil known as sebum.
a)
b)
c)
d)
Sebacious gland
Apocrine Gland
Eccrine Gland
All of the above
Q. What is the top layer of the skin called?
a)
b)
c)
d)
Dermis
Hypodermis
Epidermis
Subcutaneous
Q. true or false
freckles and moles are seen where melanin is concentrated in one spot
a) true
b) false
Q. true or false
ridges of the finger in the dermis papillary layer along with sweat pores leave a unique identifying film
called a fingerprint
a) true
b) false
Q. Nails are made out of what?
a) Terminal
b) Vellus
c) Keratin
Q. Where is the thickest skin located?
a)
b)
c)
d)
Palm of hands
Soles of feet
Eye lid
Both a and b
Q. What is another name for the hypodermis?
a) epidermis
b) subcutaneous layer
c) stratum basale
Q. The top layer of the epidermis is made of:
a)
b)
c)
d)
flat, dead keratinized cells
melanin
collagen
healthy, living cells
Q. In which of these layers are melanocytes found?
a) Dermis
b) Stratum basale
c) Stratum Corneum
Q. Which layer of the skin contains lots of adipose tissue and blood vessels?
a) Dermis
b) Epidermis
c) Hypodermis
Q. Melanin:
a)
b)
c)
d)
Helps protect skin from UV radiation
Is found in almost every human being
Is responsible for skin color
All of the above
Q. Which of these events occur as a result of a decrease in body temperature?
a)
b)
c)
d)
sweat is produced
your nails turn red
contraction of arrector pili muscles
all of these
Q. Which glands of the skin secrete an oily substance which helps keep your skin smooth and soft?
a)
b)
c)
d)
Apocrine sweat glands
merocrine sweat glands
sebaceous glands
none of the choices
Q. Arrector pili muscles:
a)
b)
c)
d)
are a part of your skeletal system
assist in the production of sebum
contract in response to frightening situations or cold weather
cause sweat glands to contract
Q. Which of the following is NOT part of the integumentary system?
a)
b)
c)
d)
Skin
Cartilage
Nails
Hair
Q. Which type of burn is characterized by the epidermis and dermis being destroyed, leaving scar
tissue behind?
a) 1st degree burn
b) 2nd degree burn
c) 3rd degree burn
Q. Caused by a complete lack of melanin:
a) Dermatitis
b) Albinism
c) Melanitis
Q. When your body temperature rises, these secrete water to the surface where heat is removed by
evaporation.
a) Sweat gland and duct
b) Hair shaft
c) Hair follicle
Q. This provides your skin with strength and elasticity (as you age you lose this and skin may become
looser)
a)
b)
c)
d)
Keratin
Dermis
Collagen
Melanin
Q. This is produced at the Sebaceous gland and helps lubricate your skin; keeping it soft and pliable.
a)
b)
c)
d)
Keratin
Sebum
Collagen
Melanin
Q. The deadliest type of skin cancer that comes from melanin-producing cells becoming cancerous:
a)
b)
c)
d)
basal cell carcinoma
squamous cell carcinoma
malignant melanoma
benign cancer
Q. Which type of skin cancer is the most common?
a)
b)
c)
d)
Basal cell carcinoma
Squamous cell carcinoma
Malignant melanoma
none of the choices
Q. What are the causes of skin cancer?
a) UV radiation from the sun
b) Genetics
c) All the choices
Q. Some of the dangers associated with severe burns include:
a)
b)
c)
d)
tissue damage and cell death
dehydration
shock
All of the choices
Q. Which layer of skin is "A" referring to?
a)
b)
c)
d)
Epidermis
Dermis
Hypodermis
Melanin
Q. To what layer of skin is letter "B" pointing?
a)
b)
c)
d)
Epidermis
Dermis
Hypodermis
Melanin
Q. To what layer of skin is letter "C" pointing?
a)
b)
c)
d)
Epidermis
Dermis
Hypodermis
Melanin
Q. To what structure is #1 pointing?
a)
b)
c)
d)
Hair follicle
Hair shaft
Hair root
Epidermis
Q. To what structure is #3 pointing?
a)
b)
c)
d)
Sweat gland and duct
Sweat pore
Arrector pili muscle
Sebaceous oil gland
Q. To what structure is #4 pointing?
a)
b)
c)
d)
Sweat gland and duct
Sweat pore
Arrector pili muscle
Sebaceous oil gland
Q. The structure that holds the root of the hair firmly in place.
a)
b)
c)
d)
Hair follicle
Hair shaft
Hypodermis
Sweat pore
Q. The epidermis receives nutrients from blood vessels located in the:
a)
b)
c)
d)
Dermis
Hypodermis
Hair follicle
Hair shaft
Q. The vasculated area of skin is the:
a) Dermis
b) Epidermis
c) Stratum basale
Q. What causes acne?
a)
b)
c)
d)
clogged sebaceous glands
clogged apocrine glands
clogged merocrine glands
clogged sweat glands
Q. Which layer of the skin does NOT contain blood vessels?
a) epidermis
b) hypodermis
c) dermis
Q. What cell produces a protein allows for waterproofing of the skin, nails, and hair?
a)
b)
c)
d)
Keratinocytes
Melanocytes
Merkel Cells
Langerhans cell
Q. What layer of epidermis does cell division occur?
a)
b)
c)
d)
stratum lucidum
stratum basale
stratum granulosum
stratum corneum
Q. The oldest cells of the epidermis will be found here
a)
b)
c)
d)
Stratum Corneum
Stratum Basale
Stratum Spinosum
Stratum Granulosum