Memmler-s 13th Edition Ch. 1-12 Final
Review -1 Exam UPDATED ACTUAL
Questions and CORRECT Answers
Integumentary System - CORRECT ANSWER - First line of defense, protective covering,
largest organ in your body
nerve endings - CORRECT ANSWER - provide safety by sending messages to the brain
dermis - CORRECT ANSWER - tough and leathery layer of the skin, elastic connective
tissue, "true skin", blood vessels, glands, receptors
Subcutaneous - CORRECT ANSWER - Fat layer connects skin to muscle, insulates and
absorbs shock, superficial fascia
Function of the Integumentary System - CORRECT ANSWER - protect, water balance,
temp regulation, waste disposal, receptor organs, blood reservoir, Vitamin D production
epidermis information - CORRECT ANSWER - avascular, stratified squamous epithelial
tissue, complete regeneration every 35-45 days, thinner on scalp and armpit than sole of food,
cells of epidermis
What are the layers of the epidermis? (bottom layer to top layer) - CORRECT ANSWER -
Stratum Basale/ Stratum Germinativum, Stratum Spinosm, Stratum Granulosm, Stratum
Lucidum, Stratum Corneum
What is unique about the layers of epidermis? - CORRECT ANSWER - Sheds itself up,
dies at the bottom and goes up
, What are characteristics of the Stratum Basle/Stratum Germinatium? - CORRECT
ANSWER - Basal Layer of cells, actively divides to replace old cells, strata=bedsheet
deepest layer, single row of cells (mostly stem cells) 10-25% melanocytes(secrete melanin), amt
of melanin=skin color, amino acid tyrosine converts melanin granules, albinism=genetic absence
of tyrosinase
Stratum Spinosum - CORRECT ANSWER - Spiny layer, several cell layers thick, mostly
Langerhans cells surrounded by Keratinocytes with spiny projections (prickle cells),
tonofilaments (tension filaments), Tension resisting protein
Stratum Granulosum - CORRECT ANSWER - Granular Lay, tough layer, 3-5 layers of
flattened keratinocytes, keratohyaline granules-formation of keratin, lamellated
granules=waterproofing glycolipid, water resistant layer, slows water loss from body, receives
nutrients from tissue fluids
Stratum Lucidum - CORRECT ANSWER - clear layer, absent in thin skin, thickest in feet
and palm soles, mainly 2-3 rows of flattened dead keratinocytes, nuclei absent, eleidin in
cytoplasm= water barrier
Stratum Corneum - CORRECT ANSWER - horny layer, outermost layer, mostly dead
keratinocytes or keratin filled plasma membranes sacs, 20-30 cell layers thick, 3/4 epidermal
thickness, protect against abrasion and penetration, glycolipid=waterproof coat, protects deeper
cells, dandruff=dry skin shedding=40lbs in lifetime, hyperkeratosis=thick dry scaly skin (scalp,
elbows, bottom of feet)
What do arteries do? - CORRECT ANSWER - feed nutrients and oxygen to the body
What do veins do? - CORRECT ANSWER - gets rid of waste products and excessive
fluids
dermal papillae - CORRECT ANSWER - toe and fingerprints no two are alike
Review -1 Exam UPDATED ACTUAL
Questions and CORRECT Answers
Integumentary System - CORRECT ANSWER - First line of defense, protective covering,
largest organ in your body
nerve endings - CORRECT ANSWER - provide safety by sending messages to the brain
dermis - CORRECT ANSWER - tough and leathery layer of the skin, elastic connective
tissue, "true skin", blood vessels, glands, receptors
Subcutaneous - CORRECT ANSWER - Fat layer connects skin to muscle, insulates and
absorbs shock, superficial fascia
Function of the Integumentary System - CORRECT ANSWER - protect, water balance,
temp regulation, waste disposal, receptor organs, blood reservoir, Vitamin D production
epidermis information - CORRECT ANSWER - avascular, stratified squamous epithelial
tissue, complete regeneration every 35-45 days, thinner on scalp and armpit than sole of food,
cells of epidermis
What are the layers of the epidermis? (bottom layer to top layer) - CORRECT ANSWER -
Stratum Basale/ Stratum Germinativum, Stratum Spinosm, Stratum Granulosm, Stratum
Lucidum, Stratum Corneum
What is unique about the layers of epidermis? - CORRECT ANSWER - Sheds itself up,
dies at the bottom and goes up
, What are characteristics of the Stratum Basle/Stratum Germinatium? - CORRECT
ANSWER - Basal Layer of cells, actively divides to replace old cells, strata=bedsheet
deepest layer, single row of cells (mostly stem cells) 10-25% melanocytes(secrete melanin), amt
of melanin=skin color, amino acid tyrosine converts melanin granules, albinism=genetic absence
of tyrosinase
Stratum Spinosum - CORRECT ANSWER - Spiny layer, several cell layers thick, mostly
Langerhans cells surrounded by Keratinocytes with spiny projections (prickle cells),
tonofilaments (tension filaments), Tension resisting protein
Stratum Granulosum - CORRECT ANSWER - Granular Lay, tough layer, 3-5 layers of
flattened keratinocytes, keratohyaline granules-formation of keratin, lamellated
granules=waterproofing glycolipid, water resistant layer, slows water loss from body, receives
nutrients from tissue fluids
Stratum Lucidum - CORRECT ANSWER - clear layer, absent in thin skin, thickest in feet
and palm soles, mainly 2-3 rows of flattened dead keratinocytes, nuclei absent, eleidin in
cytoplasm= water barrier
Stratum Corneum - CORRECT ANSWER - horny layer, outermost layer, mostly dead
keratinocytes or keratin filled plasma membranes sacs, 20-30 cell layers thick, 3/4 epidermal
thickness, protect against abrasion and penetration, glycolipid=waterproof coat, protects deeper
cells, dandruff=dry skin shedding=40lbs in lifetime, hyperkeratosis=thick dry scaly skin (scalp,
elbows, bottom of feet)
What do arteries do? - CORRECT ANSWER - feed nutrients and oxygen to the body
What do veins do? - CORRECT ANSWER - gets rid of waste products and excessive
fluids
dermal papillae - CORRECT ANSWER - toe and fingerprints no two are alike
