BIO 227 lab Exam 1; Questions and Answers 100% Correct
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Module
Bio 227
Institution
Bio 227
BIO 227 lab Exam 1; Questions and Answers
100% Correct
integumentary system Answer-Consists of the skin, mucous membranes, hair, and nail
integumentary system functions Answer-protects against environmental hazards, helps
regulate body temperature, provides sensory information
basic structur...
BIO 227 lab Exam 1; Questions and Answers
100% Correct
integumentary system Answer-Consists of the skin, mucous membranes, hair, and nail
integumentary system functions Answer-protects against environmental hazards, helps
regulate body temperature, provides sensory information
basic structure of the skin Answer-- an epidermis made of epithelium
- dermis made of connective tissue
- cemented together at dermal papillae
- a blister is when these 2 layers separate
epidermis Answer-outermost layer of skin
hypodermis Answer-the layer of skin beneath the dermis, which serves as a storage
repository for fat
dermis Answer-middle layer of skin
layers of the epidermis Answer-stratum basale, stratum spinosum, stratum granulosum,
stratum lucidum, stratum corneum
stratum corneum Answer-outermost layer of epidermis
, BIO 227 lab Exam 1; Questions and Answers
100% Correct
stratum granulosum Answer-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 Answer-a layer of the epidermis that provides strength and flexibility
to the skin
stratum basale Answer-deepest layer of epidermis
cells of the epidermis Answer-keratinocytes, melanocytes, langerhans cells, merkel cells
Keratinocytes Answer-The most abundant epidermal cells, they function mainly to
produce keratin.
Melanocytes Answer-cells that produce melanin
melanin Answer-A pigment that gives the skin its color
cerotene Answer-yellow pigment
- concentrates in stratum corneum and fat
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