BIO 253 Exam 1 Review: Chapter 6 | Atcual
Questions and Answers with Verified
Solutions | Latest Updated 2026
1 What is the function of the pili?
arrector
2 Why do cells of the epidermis as they are pushed toward the surface of
die the skin?
Indicate two mechanisms used by the integumentary system to help maintain
3 body
temperature.
As pigment is transferred to other skin cells, the pigment granules position
4 themselves
____________ to the nucleus of cell. This protects the nucleus from harmful
the skin radiation.
What is the function of the arrector To shift position of hair follicles
pili?
, The surface area of contact dermal papillae
between
the epidermis and the dermis is
increased by structures called
__________. This increased
surface area
allows for improved gas and
nutrient
exchange and waste removal by
dermal blood vessels.
List the epidermal layers of thick stratum corneum
skin stratum lucidum
in order, from the most superficial stratum granulosum
layer to the deepest layer. stratum spinosum
stratum basale
1. stratified squamous epithelium Label the tissue types found within the
2. dense irregular connective skin.
tissue
3. areolar and adipose tissue
Indicate two mechanisms used by -Alter diameter of dermal blood vessels
the integumentary system to help -Alter melanin production
maintain body temperature.
The epidermis consists of multiple keratinocytes
layers of epidermal cells called
Keratinocytes produce a tough, keratin
fibrous, waterproof protein called
Questions and Answers with Verified
Solutions | Latest Updated 2026
1 What is the function of the pili?
arrector
2 Why do cells of the epidermis as they are pushed toward the surface of
die the skin?
Indicate two mechanisms used by the integumentary system to help maintain
3 body
temperature.
As pigment is transferred to other skin cells, the pigment granules position
4 themselves
____________ to the nucleus of cell. This protects the nucleus from harmful
the skin radiation.
What is the function of the arrector To shift position of hair follicles
pili?
, The surface area of contact dermal papillae
between
the epidermis and the dermis is
increased by structures called
__________. This increased
surface area
allows for improved gas and
nutrient
exchange and waste removal by
dermal blood vessels.
List the epidermal layers of thick stratum corneum
skin stratum lucidum
in order, from the most superficial stratum granulosum
layer to the deepest layer. stratum spinosum
stratum basale
1. stratified squamous epithelium Label the tissue types found within the
2. dense irregular connective skin.
tissue
3. areolar and adipose tissue
Indicate two mechanisms used by -Alter diameter of dermal blood vessels
the integumentary system to help -Alter melanin production
maintain body temperature.
The epidermis consists of multiple keratinocytes
layers of epidermal cells called
Keratinocytes produce a tough, keratin
fibrous, waterproof protein called
