BIO 210 Final Exam Review
As cells are pushed from the deeper portion of the epidermis toward the surface, - correct
answer-they die
The dermis is composed largely of - correct answer-dense irregular connective tissue
What is false about the skin? - correct answer-the subcutaneous layer is between the dermis
and the epidermis
In a condition called incontinentia pigmenti, the skin has deep dark splotches, due to melanin
that seeps down into the dermis. Normally, melanin is confined to the - correct
answer-epidermis
The layer of the epidermis that includes a single row of cells that undergo mitosis is the -
correct answer-stratum basale
What determines the color of the skin? - correct answer-the amount of melanin that
melanocytes produce
Blood vessels in the ________ supply epidermal cells with nutrients - correct answer-dermis
The subcutaneous layer consists of - correct answer-areolar and adipose tissue
In areas of the skin where the epidermis is thin, the __________ may be absent - correct
answer-stratum lucidum
What is the epidermis responsible for? - correct answer--retains water in deeper skin layers
-keeps out harmful chemicals and pathogens
-protects the skin against mechanical injury
The nail plate is produced by - correct answer-specialized epithelial cells
The hardness of a nail comes from - correct answer-keratin
The arrestor pili muscle is attached to - correct answer-a hair follicle
Sebaceous glands secrete - correct answer-fat globules that mix with cellular debris, forming
sebum
Eccrine (merocrine) sweat glands respond to what? - correct answer-respond primarily to
elevated body temperature
What is a normal response to excessive loss of body heat in a cold environment? - correct
answer-dermal blood vessels constrict
, What type of gland would be found on the palm side of the hands? - correct
answer-merocrine
The skin dissipates (releases) excess body heat by - correct answer-evaporation, dilating
dermal blood vessels, and activating eccrine sweat glands
A burn affecting one the epidermis is a - correct answer-superficial partial-thickness burn
In treating a burn patient, the "rule of nines" is used to estimate the - correct answer-surface
area of the burn
In the inherited disease ichthyosis, the skin is rough, brown, and very scaly because the
uppermost layer cannot peel off as easily as skin normally does. The part of the skin that is
affected is the - correct answer-epidermis
Skin cells play an important role in producing - correct answer-vitamin D
The motor nerve fibers in the dermis stimulate - correct answer-muscles and glands in the
dermis
Reddened skin reflects - correct answer-dilated blood vessels with more blood entering the
dermis
What is true regarding scar formation after injury? - correct answer-overgrowth of collagen
fibers in the dermis
What is not a function of bones - correct answer-to provide a set point for the control body
temperature
What is not associated with spongy bone? - correct answer-osteons
T/F: Based on shape, the femur is associated flat bones - correct answer-false
Articular cartilage of a long bone is found - correct answer-on the outer surface of the
epiphyses
A bone thickens (becomes wider) - correct answer-as compact bone is deposited beneath
the periosteum of the diaphysis
A bone lengthens - correct answer-as a result of increased activity within the epiphyseal
plate
Osteoblasts are ___________, whereas osteocytes are ___________ - correct
answer-bone-forming cells; mature bone cells
Osteoclasts are - correct answer-cells that break down bone matrix
As cells are pushed from the deeper portion of the epidermis toward the surface, - correct
answer-they die
The dermis is composed largely of - correct answer-dense irregular connective tissue
What is false about the skin? - correct answer-the subcutaneous layer is between the dermis
and the epidermis
In a condition called incontinentia pigmenti, the skin has deep dark splotches, due to melanin
that seeps down into the dermis. Normally, melanin is confined to the - correct
answer-epidermis
The layer of the epidermis that includes a single row of cells that undergo mitosis is the -
correct answer-stratum basale
What determines the color of the skin? - correct answer-the amount of melanin that
melanocytes produce
Blood vessels in the ________ supply epidermal cells with nutrients - correct answer-dermis
The subcutaneous layer consists of - correct answer-areolar and adipose tissue
In areas of the skin where the epidermis is thin, the __________ may be absent - correct
answer-stratum lucidum
What is the epidermis responsible for? - correct answer--retains water in deeper skin layers
-keeps out harmful chemicals and pathogens
-protects the skin against mechanical injury
The nail plate is produced by - correct answer-specialized epithelial cells
The hardness of a nail comes from - correct answer-keratin
The arrestor pili muscle is attached to - correct answer-a hair follicle
Sebaceous glands secrete - correct answer-fat globules that mix with cellular debris, forming
sebum
Eccrine (merocrine) sweat glands respond to what? - correct answer-respond primarily to
elevated body temperature
What is a normal response to excessive loss of body heat in a cold environment? - correct
answer-dermal blood vessels constrict
, What type of gland would be found on the palm side of the hands? - correct
answer-merocrine
The skin dissipates (releases) excess body heat by - correct answer-evaporation, dilating
dermal blood vessels, and activating eccrine sweat glands
A burn affecting one the epidermis is a - correct answer-superficial partial-thickness burn
In treating a burn patient, the "rule of nines" is used to estimate the - correct answer-surface
area of the burn
In the inherited disease ichthyosis, the skin is rough, brown, and very scaly because the
uppermost layer cannot peel off as easily as skin normally does. The part of the skin that is
affected is the - correct answer-epidermis
Skin cells play an important role in producing - correct answer-vitamin D
The motor nerve fibers in the dermis stimulate - correct answer-muscles and glands in the
dermis
Reddened skin reflects - correct answer-dilated blood vessels with more blood entering the
dermis
What is true regarding scar formation after injury? - correct answer-overgrowth of collagen
fibers in the dermis
What is not a function of bones - correct answer-to provide a set point for the control body
temperature
What is not associated with spongy bone? - correct answer-osteons
T/F: Based on shape, the femur is associated flat bones - correct answer-false
Articular cartilage of a long bone is found - correct answer-on the outer surface of the
epiphyses
A bone thickens (becomes wider) - correct answer-as compact bone is deposited beneath
the periosteum of the diaphysis
A bone lengthens - correct answer-as a result of increased activity within the epiphyseal
plate
Osteoblasts are ___________, whereas osteocytes are ___________ - correct
answer-bone-forming cells; mature bone cells
Osteoclasts are - correct answer-cells that break down bone matrix
