BIO210 EXAMS QUESTIONS AND ANSWERS
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stratum Basale
outermost layer of epidermis
stratum lucidum
a layer of the epidermis found only in the thick skin of the fingers, palms, and soles
stratum granulosum
a layer of the epidermis that marks the transition between the deeper, metabolically
active strata and the dead cells of the more superficial strata
stratum spinosum
a layer of the epidermis that provides strength and flexibility to the skin
stratum basale
the deepest layer of the epidermis consisting of stem cells capable of undergoing cell
division to form new cells
Epidermis
Outer layer of skin
papillary layer
Outermost layer of the dermis, directly underneath the epidermis
reticular layer
deepest skin layer
Dermis
middle layer of skin
what tissue class is the papillary layer
Areolar connective tissue
what part of the epidermis is stratified squamous epithelium?
stratum corneum
what part of the dermis is dense irregular connective tissue
reticular layer of the dermis
Merocrine
A strategy of secreting hormones via exocytosis
sebaceous glands
secrete sebum (oil) into the hair follicles where the hair shafts pass through the dermis
arector pili
smooth muscle attacted to hair follicle, pulls on surrounding skin (goose bumps)
Epithelium
layer of skin cells forming the outer and inner surfaces of the body
What is the root sheath?
Part of hair follicle
The inner or epidermic coat of the hair follicle is closely adherent to the root of the hair,
and consists of two strata named respectively the outer and inner root sheaths.
hair bulb
Lowest part of a hair strand; the thickened, club-shaped structure that forms the lower
part of the hair root.
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stratum Basale
outermost layer of epidermis
stratum lucidum
a layer of the epidermis found only in the thick skin of the fingers, palms, and soles
stratum granulosum
a layer of the epidermis that marks the transition between the deeper, metabolically
active strata and the dead cells of the more superficial strata
stratum spinosum
a layer of the epidermis that provides strength and flexibility to the skin
stratum basale
the deepest layer of the epidermis consisting of stem cells capable of undergoing cell
division to form new cells
Epidermis
Outer layer of skin
papillary layer
Outermost layer of the dermis, directly underneath the epidermis
reticular layer
deepest skin layer
Dermis
middle layer of skin
what tissue class is the papillary layer
Areolar connective tissue
what part of the epidermis is stratified squamous epithelium?
stratum corneum
what part of the dermis is dense irregular connective tissue
reticular layer of the dermis
Merocrine
A strategy of secreting hormones via exocytosis
sebaceous glands
secrete sebum (oil) into the hair follicles where the hair shafts pass through the dermis
arector pili
smooth muscle attacted to hair follicle, pulls on surrounding skin (goose bumps)
Epithelium
layer of skin cells forming the outer and inner surfaces of the body
What is the root sheath?
Part of hair follicle
The inner or epidermic coat of the hair follicle is closely adherent to the root of the hair,
and consists of two strata named respectively the outer and inner root sheaths.
hair bulb
Lowest part of a hair strand; the thickened, club-shaped structure that forms the lower
part of the hair root.
