Skin & Burn Model: Nervous & Muscle Tissue

Epidermis → waterproofing

Nervous Tissue

Blood Vessels

Hair

Palm (hand) / Sole (foot

Axilla (armpit)

Scalp (head)

Stratum Basale → houses merkel cells

A

Stratum Spinosum → houses keratinocytes

B

Stratum Granulosum → carries lamellar granules

C

Stratum Lucidum → reinforces palms/soles of feet

D

Stratum Corneum → supports w/ 20-30 cell layers

E

Finger Print

Papillary Layer → nourishes epidermis

Dermal Papilla → forms the fingertips

Dermis → Temperature regulation

A

Connective Tissue Sheath

C

Glassy Membrane

D

External Root Sheath

E

Internal Root Sheath

F

Cuticle Layer → outermost layer of hair

G

Cortex → middle layer of hair

H

Medulla → inner layer of hair

I

Hair Bulb → germinal epithelial cells

B

Hair Root

I, H, & G together

Hair Papilla → nourishes growing hair

Hair Shaft → cuticle, cortex & medulla

Eccrine Sweat Gland Pore → opening for perspiration

E

Capillary Loop

D

Vein

B

Artery

A

Eccrine Sweat Gland → produces perspiration

C

Eccrine Sweat Gland Duct

G

Sebaceous Gland → produces oil

H

Apocrine Sweat Gland → produces bacterial medium

F

Meissner's Corpuscle → touch reception

#1

Free Nerve Ending → touch/pressure receptor

#2

Sensory Nerve Fiber

#3

Pacinian Corpuscle → deep pressure reception

#4

Arrector Pili Muscle → connects follicle to papillary layer

#6

Motor Nerve Fiber

#5