HISTOLOGY - Integument Flashcards by Timothy Veit

Q

A

Epidermis - keratinized stratified squamous

Dermis - dense irregular CT

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Q

A

Epidermis w/ 5 Layers

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Q

A

Stratum spinosum

note the spikes arund each cell edge (i.e spines = spinous)

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Q

A

Thick skin (left) and thin skin (right)

Note the layer of the statum lucidum superficial to the dark stratum granulosum

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Q

A

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Q

A

Keratinocytes

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Q

What are the arrows pointing to?

A

Stratum basale

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Q

A

stratum spinosum

note the spikes arund each cell edge (i.e spines = spinous) – tonofibrils

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Q

A

stratums granulosum — has lamellar granules that are v dark

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Q

What Is the arrow outlining?

A

stratum corneum – most superficial layer

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Q

What are the boxes showing?

A

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Q

What does DP stand for and identify?

A

Dermal papillae

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Q

What are PL and RL

A

Papillar Layer

Reticular Layer

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Q

What does the arrow define?

A

Hypodermis – subcutaneous fascia – i.e. FAT and loose CT

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Q

A

Merkel Cells

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Q

What are the purple, stringly things?

A

Free Nerve Endings

Q

A

Meissner’s Corpuscles

Q

What is the circular object

A

Lamellar (Pacinian) Corpuscle

Q

A

Subaceous glands

Q

A

exocrine sweat glands

Q

A

apocrine sweat glands

*note how “hole-y” they are

Q

What is APM showing?

A

Arrector pili muscle

Q

What are the blocked-out structures?

A

Nail Root

Nail Matrix

Epichonium

Nail