Integument & Appendages

A hair may be regarded as a modified part of the stratum corneum of the skin. It consists of three layers named cuticle, cortex & medulla.

Sebaceous gland is a holocrine gland.

Merkel cell is responsible for tactile sensation

Although the nail is an avascular structure, most of the nail-bed has rich vascular supply. 

Epithelium is an avascular structure, it receives nutrition from the underlying dermal capillaries. 

Cartilage receives nutrition from the perichondrium. 

Cornea receives nutrition by diffusion from the surrounding capillaries. 

Typical sweat glands are of the merocrine variety. Their number and size vary in the skin over different parts of the body. They are most numerous in the palms and soles, the forehead and scalp, and the axillae.

"Langhans" type of giant cell is found in