BIOD 103 Module 3
What is the primary organ of the integumentary system? - answerthe skin
Name the four functions of the skin - answerThe four functions of the skin are
protection, sensation, secretion, and temperature regulation
What are the 5 layers of the epidermis? - answer stratum germinativum, stratum
spinosum, stratum granulosum, stratum lucidum, and stratum corneum
What are the two layers of the skin? - answerepidermis and dermis
What is the protein that makes up the majority of hair and nails? - answerkeratin
What gives the skin its pigment? - answermelanin
What are Langerhans cells, and what is their function? - answerLangerhans cells are
cells of the immune system that are found in the stratum spinosum of the epidermis.
Their function is to protect the body from invading microorganisms
What accessory structures of the integumentary system are found in the dermis? -
answerHair, sebaceous glands, and sweat glands
What are the parts of the hair? Where can hair be found? What is the function of the
arrector pili muscle? - answerThe hair is made up of the root growing out of the hair
follicle and the shaft which is the visible portion of the hair. Hair can be found all over
the body except for the lips, palms and soles, and the penis.
The function of the arrector pili muscle is to contract in reaction to cold or an emotion to
form goosebumps
Where are nails found? What are they made of? What is the function of the nail? What
are the sections of the nail? What is the eponychium? What is the lunula? - answerNails
are found on the ends of the fingers and toes. They are made of keratin. The function of
the nail is for protection for the tips of the fingers and toes.
The sections of the nail are the root and the nail bed. The eponychium is a fold of
epithelial tissue over the base of the nail body.
The lunula is the crescent-shaped area at the base of the nail body that is lighter than
the rest of the nail
, What are sebaceous glands? What is their function? - answerSebaceous glands are oil-
secreting glands in the skin. Their function is to secrete sebum to lubricate the hair and
the nails
What is the function of sweat glands? What are the two types of sweat glands found in
the body? What are the main differences between these two glands? - answerSweat
functions to cool the body through evaporation of moisture. The two types of sweat
glands found in the body are the merocrine and apocrine sweat glands.
Merocrine sweat glands are located throughout the body and release sweat directly to
the skin's surface. They are most prevalent on the soles of the feet and palms of the
hands.
Apocrine sweat glands are located in the axillae, around the nipples, and in the groin.
They begin to secrete sweat during puberty and they secrete sweat into the hair follicles
located in those areas
Use the combining form aden/o, meaning gland, and the suffixes
a. Surgical removal of a gland
b. Inflammation of a gland
c. Tumor in a gland
d. Disease of a gland
e. Enlarged gland - answerA) adenectomy
B) adenitis
C) adenoma
D) adenopathy
E) adenomegaly
Use the suffix -derma, meaning a skin condition, and the combining forms
a. Hard skin condition
b. Yellow skin condition
c. Dry skin condition
d. Thick skin condition
e. Red skin condition
f. White skin condition - answerA) scleroderma
B) xanthoderma
C) xeroderma
D) pachyderma
E) erythroderma
F) leukoderma
Use the combining form dermat/o, meaning skin, and the suffixes
a. Skin inflammation
What is the primary organ of the integumentary system? - answerthe skin
Name the four functions of the skin - answerThe four functions of the skin are
protection, sensation, secretion, and temperature regulation
What are the 5 layers of the epidermis? - answer stratum germinativum, stratum
spinosum, stratum granulosum, stratum lucidum, and stratum corneum
What are the two layers of the skin? - answerepidermis and dermis
What is the protein that makes up the majority of hair and nails? - answerkeratin
What gives the skin its pigment? - answermelanin
What are Langerhans cells, and what is their function? - answerLangerhans cells are
cells of the immune system that are found in the stratum spinosum of the epidermis.
Their function is to protect the body from invading microorganisms
What accessory structures of the integumentary system are found in the dermis? -
answerHair, sebaceous glands, and sweat glands
What are the parts of the hair? Where can hair be found? What is the function of the
arrector pili muscle? - answerThe hair is made up of the root growing out of the hair
follicle and the shaft which is the visible portion of the hair. Hair can be found all over
the body except for the lips, palms and soles, and the penis.
The function of the arrector pili muscle is to contract in reaction to cold or an emotion to
form goosebumps
Where are nails found? What are they made of? What is the function of the nail? What
are the sections of the nail? What is the eponychium? What is the lunula? - answerNails
are found on the ends of the fingers and toes. They are made of keratin. The function of
the nail is for protection for the tips of the fingers and toes.
The sections of the nail are the root and the nail bed. The eponychium is a fold of
epithelial tissue over the base of the nail body.
The lunula is the crescent-shaped area at the base of the nail body that is lighter than
the rest of the nail
, What are sebaceous glands? What is their function? - answerSebaceous glands are oil-
secreting glands in the skin. Their function is to secrete sebum to lubricate the hair and
the nails
What is the function of sweat glands? What are the two types of sweat glands found in
the body? What are the main differences between these two glands? - answerSweat
functions to cool the body through evaporation of moisture. The two types of sweat
glands found in the body are the merocrine and apocrine sweat glands.
Merocrine sweat glands are located throughout the body and release sweat directly to
the skin's surface. They are most prevalent on the soles of the feet and palms of the
hands.
Apocrine sweat glands are located in the axillae, around the nipples, and in the groin.
They begin to secrete sweat during puberty and they secrete sweat into the hair follicles
located in those areas
Use the combining form aden/o, meaning gland, and the suffixes
a. Surgical removal of a gland
b. Inflammation of a gland
c. Tumor in a gland
d. Disease of a gland
e. Enlarged gland - answerA) adenectomy
B) adenitis
C) adenoma
D) adenopathy
E) adenomegaly
Use the suffix -derma, meaning a skin condition, and the combining forms
a. Hard skin condition
b. Yellow skin condition
c. Dry skin condition
d. Thick skin condition
e. Red skin condition
f. White skin condition - answerA) scleroderma
B) xanthoderma
C) xeroderma
D) pachyderma
E) erythroderma
F) leukoderma
Use the combining form dermat/o, meaning skin, and the suffixes
a. Skin inflammation
