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Sebaceous gland

These images show a hair follicle with its associated sebaceous gland, collectively referred to as a pilosebaceous unit. Sebaceous glands are normally associated with hair follicles and their secretory product, called sebum, is released onto the hair shaft in follicle. 100x, 400x

Pilosebaceous unit <p>These images show a hair follicle with its associated sebaceous gland, collectively referred to as a pilosebaceous unit. Sebaceous glands are normally associated with hair follicles and their secretory product, called sebum, is released onto the hair shaft in follicle. 100x, 400x</p>

Pilosebaceous unit

These images show a hair follicle with its associated sebaceous gland, collectively referred to as a pilosebaceous unit. Sebaceous glands are normally associated with hair follicles and their secretory product, called sebum, is released onto the hair shaft in follicle. 100x, 400x

- Sebaceous gland <p>These images show a hair follicle with its associated sebaceous gland, collectively referred to as a pilosebaceous unit. Sebaceous glands are normally associated with hair follicles and their secretory product, called sebum, is released onto the hair shaft in follicle. 100x, 400x</p>

- Sebaceous gland

These images show a hair follicle with its associated sebaceous gland, collectively referred to as a pilosebaceous unit. Sebaceous glands are normally associated with hair follicles and their secretory product, called sebum, is released onto the hair shaft in follicle. 100x, 400x

-- Secretory acini <p>These images show a hair follicle with its associated sebaceous gland, collectively referred to as a pilosebaceous unit. Sebaceous glands are normally associated with hair follicles and their secretory product, called sebum, is released onto the hair shaft in follicle. 100x, 400x</p>

-- Secretory acini

These images show a hair follicle with its associated sebaceous gland, collectively referred to as a pilosebaceous unit. Sebaceous glands are normally associated with hair follicles and their secretory product, called sebum, is released onto the hair shaft in follicle. 100x, 400x

-- Duct <p>These images show a hair follicle with its associated sebaceous gland, collectively referred to as a pilosebaceous unit. Sebaceous glands are normally associated with hair follicles and their secretory product, called sebum, is released onto the hair shaft in follicle. 100x, 400x</p>

-- Duct

These images show a hair follicle with its associated sebaceous gland, collectively referred to as a pilosebaceous unit. Sebaceous glands are normally associated with hair follicles and their secretory product, called sebum, is released onto the hair shaft in follicle. 100x, 400x

-- Sebum <p>These images show a hair follicle with its associated sebaceous gland, collectively referred to as a pilosebaceous unit. Sebaceous glands are normally associated with hair follicles and their secretory product, called sebum, is released onto the hair shaft in follicle. 100x, 400x</p>

-- Sebum

These images show a hair follicle with its associated sebaceous gland, collectively referred to as a pilosebaceous unit. Sebaceous glands are normally associated with hair follicles and their secretory product, called sebum, is released onto the hair shaft in follicle. 100x, 400x

- Hair follicle <p>These images show a hair follicle with its associated sebaceous gland, collectively referred to as a pilosebaceous unit. Sebaceous glands are normally associated with hair follicles and their secretory product, called sebum, is released onto the hair shaft in follicle. 100x, 400x</p>

- Hair follicle

These images show a hair follicle with its associated sebaceous gland, collectively referred to as a pilosebaceous unit. Sebaceous glands are normally associated with hair follicles and their secretory product, called sebum, is released onto the hair shaft in follicle. 100x, 400x

-- Bulb <p>These images show a hair follicle with its associated sebaceous gland, collectively referred to as a pilosebaceous unit. Sebaceous glands are normally associated with hair follicles and their secretory product, called sebum, is released onto the hair shaft in follicle. 100x, 400x</p>

-- Bulb

These images show a hair follicle with its associated sebaceous gland, collectively referred to as a pilosebaceous unit. Sebaceous glands are normally associated with hair follicles and their secretory product, called sebum, is released onto the hair shaft in follicle. 100x, 400x

-- Papilla > <p>The base of the bulb is invaginated by the dermal papilla consisting of a tuft of vascularized loose connective tissue that maintains the follicle. </p>

-- Papilla >

The base of the bulb is invaginated by the dermal papilla consisting of a tuft of vascularized loose connective tissue that maintains the follicle.

-- Follicle sheath > <p>The follicle sheath is a multilayered sleeve that surrounds the hair shaft. </p>

-- Follicle sheath >

The follicle sheath is a multilayered sleeve that surrounds the hair shaft.

-- Hair shaft <p>The follicle sheath is a multilayered sleeve that surrounds the hair shaft. </p>

-- Hair shaft

The follicle sheath is a multilayered sleeve that surrounds the hair shaft.

- Arrector pili muscle <p>The arrector pili muscle is band of smooth muscle anchored at one end in the papillary layer of the dermis and attached to the hair follicle at the other, in a specialized stem-cell niche called the follicular bulge. Contraction of the arrector pili elevates the hair shaft and produces depressions on the skin surface called “goose flesh”. </p>

- Arrector pili muscle

The arrector pili muscle is band of smooth muscle anchored at one end in the papillary layer of the dermis and attached to the hair follicle at the other, in a specialized stem-cell niche called the follicular bulge. Contraction of the arrector pili elevates the hair shaft and produces depressions on the skin surface called “goose flesh”.

Main Slide Pilosebaceous unit - Sebaceous gland -- Secretory acini -- Duct -- Sebum - Hair follicle -- Bulb -- Papilla > -- Follicle sheath > -- Hair shaft - Arrector pili muscle