Integumentary System Vocabulary

Vocabulary flashcards covering the components, layers, and structures of the integumentary system based on lecture notes.

Integumentary System

System that protects the body from harmful factors such as microorganisms that could cause disease/infections, pollutants, and ultra-violet rays.

Skin

Serves as a protective coat, helps to maintain normal body temperature, acts as the largest sense receptor responding to touch, heat, and cold, and synthesizes/makes vitamin D activated by sunlight.

Epidermis

The outermost layer of the skin that contains dead skin cells.

Dermis

The second layer of the skin which contains several accessory structures.

Eccrine Gland

A type of sweat gland present to the entire human body.

Apocrine Sweat Glands

Sweat glands that reside on the axillary area, originate at the areola nipples, genitals, and anal region.

Merocrine Sweat Gland

A type of sweat gland found on the palms and soles of the feet.

Arrector Pili Muscle

Involuntary muscle responsible for creating goose bumps.

Hypodermis

Also known as the subcutaneous layer; made up of adipose tissues, blood vessels, and nerves, providing insulator and cushioning functions to our body.

Hair

Structure present throughout the body that is made up of the protein keratin.

Shaft

The part of the hair made up of dead cells.

Hair Follicles

Structures found beneath the dermis where mitosis occurs.

Hair Bulb

Extension of the hair follicle located at the hypodermal area.

Nail

Hard structures that are adaptations of the epidermis and made up of keratin, used for protection, grasping objects, and scratching.