Chapter 5 - Layers Of The Integument And Subcutaneous Layer

Front 1

stratum corneum

Back 1

most superficial layer of epidermis, 20-30 layers of dead, flattened, a nucleate, keratin filled keratinocytes

Front 2

stratum lucidum

Back 2

2-3 layers of a nucleate, dead cells, seen only in thick skin (palms, soles of feet)

Front 3

stratum granulosum

Back 3

3-5 layers of keratinocytes with distinct granules in the cytoplasm, keratinization begins in this layer

Front 4

stratum spinosum

Back 4

several layers of keratinocytes attached to neighbors by desmosomes, epidermal dendritic cells present

Front 5

stratum basale

Back 5

deepest, single layer of cubodial to low columnar cells in contact with basement membrane, mitosis occurs here, contains keratinocytes, melanocytes, and dermal papillae

Front 6

papillary layer

Back 6

more superficial layer of dermis, composed if are solar connective tissue, forms dermal papillae

Front 7

reticular layer

Back 7

deeper layer of dermis, dense irregular connective tissue surrounding blood vessels, hair follicles, nerves, sweat glands, and sebaceous glands