Accessory Structures of the Skin (Video Notes)

VOCABULARY flashcards covering key skin accessory structures from Page 1 notes.

Hair shaft

The portion of a hair that extends above the skin surface; the visible part of the hair.

Pore of sweat gland duct

The opening on the skin surface through which sweat exits the sweat gland duct.

Tactile corpuscle

A light touch receptor located in the dermal papillae; detects fine touch.

Sebaceous gland

Gland that secretes sebum to lubricate hair and skin.

Arrector pili muscle

Small muscle attached to hair follicles that causes hair to stand erect when contracted.

Sweat gland duct

Duct that carries sweat from the sweat gland to the skin surface.

Hair follicle

Structure within the skin that surrounds the hair root and from which hair grows.

Lamellar corpuscle

Pacinian corpuscle; a deep pressure and vibration receptor in the dermis.

Nerve fibers

Bundles of neurons that carry sensory information and signals to/from the skin.

Sweat gland

Gland that produces sweat for thermoregulation and waste excretion.

Artery

Blood vessel that carries blood away from the heart; in the skin, part of cutaneous circulation.

Cutaneous vein

Vein located in the skin that returns blood to the heart.

Fat

Adipose tissue in the subcutaneous layer; provides insulation and energy storage.

Cutaneous plexus

Network of blood vessels in the dermis that supplies the skin.

Accessory structures

Skin appendages such as hair, glands, and associated muscles included in the integumentary system.