4.3: Exercises

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Yancy Aquino
Skyline College

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EPIDERMAL LAYERS

& Physiology Lab Homework by Laird C. Sheldahl, under a Creative Commons Attribution-ShareAlike License 4.0

Lab 4 Exercise \(\PageIndex{1}\)

Integument Layers

Label the following: *Hair follicle * Sebaceous gland * Epidermis * Dermis (papillary layer) *Dermis (reticular layer) * Hypodermis * Arrector pili muscle * Sweat gland.

1	Hair follicle
2	Sebaceous gland
3	Epidermis
4	Dermis (papillary layer)
5	Dermis (reticular layer)
6	Hypodermis
7	Arrector pili muscle
8	Sweat gland
9

Lab 4 Exercise \(\PageIndex{2}\)

Epidermal Layers

Label the following: Stratum corneum * Stratum lucidum * Stratum granulosum * Stratum spinosum * Stratum basale * Dermal papilla * Sweat duct * Sweat pore * Stratified squamous epithelium * Dendritic cell * Melanocyte

1	Stratum corneum
2	Stratum lucidum
3	Stratum granulosum
4	Stratum spinosum
5	Stratum basale
6	Dermal papilla
7	Sweat duct
8	Sweat pore
9	Stratified squamous epithelium
10	Dendritic cell
11	Melanocyte

Lab 4 Exercise \(\PageIndex{3}\)

Skin Accessories

Label the parts of a hair follicle: Sebaceous gland * Hair shaft * Hair bulb * Hair root * Hair papilla

1	Sebaceous gland
2	Hair shaft
3	Hair bulb
4	Hair root
5	Hair papilla

Label the parts of a nail: Eponychium * Free edge * Hyponychium * Lunula * Nail matrix * Nail root * Lateral nail fold * Nail bed * Nail plate.

1	Eponychium
2	Free edge
3	Hyponychium
4	Nail matrix
5	Nail root
6	Lateral nail fold
7	Nail bed
8	Nail plate.

Lab 4 Exercise \(\PageIndex{4}\)

Integument Layers

Histology: Hair * Hair follicle * Dermal papilla * Sebaceous gland * Eccrine sweat gland * Stratified squamous epithelium * Areolar CT * Dense irregular CT.

1	Hair follicle
2	Dermal papilla
3	Sebaceous gland
4	Eccrine sweat gland
5	Stratified squamous epithelium
6	Areolar CT
7	Dense irregular CT.

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