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Anatomy and Physiology Chapter 5 The Integumentary System with 100- correct answers (graded A+).
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Anatomy and Physiology Chapter 5 The Integumentary System with 100- correct answers (graded A+).
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Anatomy and PhysiologyChapter 5 The Integumentary
System with 100% correct
answers (graded A+)
Functions of skin - answer Protection, Thermoregulation, Cutaneous
Sensation, Vitamin D synthesis, Blood Reservoir, Excretion and
Absorption.
Protective elements of skin - answer Keratin, Lipids, Glandular
Secretions, Melanin
Thermoregulation - answer Controls internal temp
Vitamin D synthesis - answer You need Vitamin D to absorb calcium
Epidermis - answer Superficial layer of skin. Avascular. 4 different
cell types (Keratinocytes, Melanocytes, Langerhans cells, merkel
cells)
Keratinocytes - answer 90% of cells. Keratin
Melanocytes - answer 8% of cells. Melanin (Pigments and absorb uv
radiation.
Langerhans Cells - answer Immune function
Merkel cells - answer Touch
, Layers of skin (Superficial to deep) - answer Epidermis, Dermis
Epidermal Layers (deep to superficial) - answer Stratum Basale,
Stratum spinosum, Stratum granulosum, Stratum lucidum, Stratum
corneum.
Stratum Basale - answer Keratinocytes, Melanocytes, Langerhans
cells and Merkel cells are here. Deepest layer, and mitosis occurs.
Stratum Spinosum - answer Keratinocytes and Langerhans cells are
here. Production of melanocytes here.
Stratum granulosum - answer Lamellar granules, apoptosis occurs
here.
Stratum lucidum - answer Present only in thick skin
Stratum corneum - answer Keratin, and continuously shed
(Outermost layer)
Dermis - answer Deep layer, Beneath epidermis, Vascular, LAyers:
Papillary and reticular
Papillary Layer - answer Areolar connective tissue, Dermal papillae
(finger like projections)
Reticular layer - answer Thickest layer, dense and irregular
connective tissue
Hypodermis - answer Not apart of skin
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