Skin and Osteon models

central canal

circumferential lamella

lacunae

lamella

osteocyte

osteon

perforating fibers

trabeculae

Periosteum

Endosteum

bone marrow

arrector pili muscle

A small, involuntary muscle located along the side of the hair follicle that is responsible for 'goose bumps'

dermis

Inner layer of skin

epidermis

hair follicle

hair matrix

hair papilla

hair shaft

Hypodermis

lamellar corpuscle

sebaceous gland

stratum basale

stratum spinosum

stratum granulosum

stratum lucidium (clear layer)

stratum corneum

sweat gland

tactile corpuscle

free nerve ending

sensory nerve