Chapter 5: Part 2
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Chapter 5: Part 2
Part 2 Integumentary
Stratum Spinosum is the ___________ layer.
Cells contain a weblike system of intermediate prekeratin filaments attached to desmosomes in stratum __________.
Stratum spinosum contains abundant
____________ granules and ___________ cells.
Stratum granulosum is the ___________ layer.
How many cell layers thick is stratum granulosum?
What do the cells do in stratum granulosum?
What accumulates in stratum granulosum?
keratohyaline and lamellated granules
Stratum Lucidem is the ______ layer.
What layer is found in only thick skin?
Stratum Ludicem is a thin, _________ band superficial to the stratum granulosum.
Stratum lucidem is made up of what?
flat, dead keratinocytes
The stratum corneum is the ________ layer.
How many layers thick is the stratum corneum?
Dead, flattened, keratanized membranous sacs describes what layer?
Stratum Corneum is __________ of the epidermal thickness.
What is the function of stratum corneum?
protects from abrasion and penetration, waterproofs, and is a barrier against biological, chemical, and physical assaults
What kind of tissue makes up the dermis?
strong, flexible connective tissue
What cells makes up the dermis?
fibroblasts, macrophages, and occasionally mast cells and white blood cells
Two layers of the dermis are __________ and ____________.
papillary and reticular
The dermis is __________.
What makes up the papillary layer of the dermis?
areolar connective tissue with collagen, elastic fibers, and blood vessels
What does dermal papillae contain?
free nerve endings
Reticular layer makes up __% of the thickness of dermis.
__________ fibers provide strength and resiliency.
________ fibers provide stretch-recoil properties.
What makes up the reticular layer?
collagen & elastic fibers
Epidermal ridges lie atop deeper dermal papillary ridges to from friction ridges of ___________.
Collagen fibers arranged in bundles form ________ ________.
Cleavage lines are also known as ________ lines.
Incisions made _______ to cleavage lines heal more readily.
What are the 2 skin markings?
Friction ridges & cleavage lines