ASU BIO 201- Exam| 80 Questions with 100%
Correct Solutions
what are the layers of the skin - ANSWER epidermis, dermis, hypodermis
what are the layers of the epidermis - ANSWER stratum basale, stratum spinosum,
stratum granulosum, stratum lucidum, stratum corneum
stratum basale - ANSWER deepest layers, consists of stem cells, keratinocytes,
melanocytes, and tactile cells. It replaces lost epidermal cells.
stratum spinosum - ANSWER has dendric cells and several layers of keratinocytes.
Produces more and more keratin filaments.
stratum granulosum - ANSWER has keratohyalin granules and has three to five layers.
stratum lucidum - ANSWER only in thick skin, contains eleidin.
stratum corneum - ANSWER outermost layer of the epidermis, which consists of 30
layers of flattened, keratinized cells.
papillary layer - ANSWER superficial zone of the dermis, consists of areole tissue.
recticular layer - ANSWER Denser, deeper layer of the Dermis, made mainly of Collagen
and Elastin
what is the hypodermis - ANSWER A layer of adipose (fat) tissue that stores energy and
cushions other organs. It is not technically a layer of the skin, but it is highly vascular.
, what make fingerprints - ANSWER Dermal papillae and epidermis ridges
cyanosis - ANSWER a bluish discoloration of the skin resulting from poor circulation or
inadequate oxygenation of the blood.
erythema - ANSWER redness of the skin due to dilated cutaneous vessels.
pallor - ANSWER paleness or ashen color when there is so little blood flow through the
skin.
Albanism - ANSWER Genetic condition characterized by the lack of melanin pigment in
the body including the skin, hair, and eyes
jaundice - ANSWER yellowing of the skin
hematoma - ANSWER (bruise) a solid swelling of clotted blood within the tissues.
why is skin color different - ANSWER it is due to the expression/production of melanin.
what are the types of hair - ANSWER lanugo, vellus, terminal
lanugo - ANSWER fine, soft hair, especially that which covers the body and limbs of a
human fetus or newborn. (last 3 months of development)
vellus - ANSWER fine, pale hair that replaces lanugo by time of birth.
Correct Solutions
what are the layers of the skin - ANSWER epidermis, dermis, hypodermis
what are the layers of the epidermis - ANSWER stratum basale, stratum spinosum,
stratum granulosum, stratum lucidum, stratum corneum
stratum basale - ANSWER deepest layers, consists of stem cells, keratinocytes,
melanocytes, and tactile cells. It replaces lost epidermal cells.
stratum spinosum - ANSWER has dendric cells and several layers of keratinocytes.
Produces more and more keratin filaments.
stratum granulosum - ANSWER has keratohyalin granules and has three to five layers.
stratum lucidum - ANSWER only in thick skin, contains eleidin.
stratum corneum - ANSWER outermost layer of the epidermis, which consists of 30
layers of flattened, keratinized cells.
papillary layer - ANSWER superficial zone of the dermis, consists of areole tissue.
recticular layer - ANSWER Denser, deeper layer of the Dermis, made mainly of Collagen
and Elastin
what is the hypodermis - ANSWER A layer of adipose (fat) tissue that stores energy and
cushions other organs. It is not technically a layer of the skin, but it is highly vascular.
, what make fingerprints - ANSWER Dermal papillae and epidermis ridges
cyanosis - ANSWER a bluish discoloration of the skin resulting from poor circulation or
inadequate oxygenation of the blood.
erythema - ANSWER redness of the skin due to dilated cutaneous vessels.
pallor - ANSWER paleness or ashen color when there is so little blood flow through the
skin.
Albanism - ANSWER Genetic condition characterized by the lack of melanin pigment in
the body including the skin, hair, and eyes
jaundice - ANSWER yellowing of the skin
hematoma - ANSWER (bruise) a solid swelling of clotted blood within the tissues.
why is skin color different - ANSWER it is due to the expression/production of melanin.
what are the types of hair - ANSWER lanugo, vellus, terminal
lanugo - ANSWER fine, soft hair, especially that which covers the body and limbs of a
human fetus or newborn. (last 3 months of development)
vellus - ANSWER fine, pale hair that replaces lanugo by time of birth.
