Integumentary System - Special Structures

A small structure made of smooth muscle that connects to the side of the hair follicle.

• Arrector Pili

• Hypodermis

• Sebum

• Nociceptor

An oily substance secreted by sebaceous glands.

• Melanin

• Adipose

• Sebum

• Sweat

• Keratin

A oval sac of epithelial tissue that surrounds and protects the root of the hair.

• Arrector Pili

• Lymph vessels

• Meissner Corpuscle

• Hair Follicle

These structures serve to regulate the body's temperature by producing sweat.

• Sebaceous glands

• Lymph vessels

• Blood vessels

• Meissner Corpuscles

• Sweat gland

These structures serve to regulate the body's temperature by producing sweat.

• Sebaceous glands

• Lymph vessels

• Blood vessels

• Meissner Corpuscles

• Sweat gland

A pigment that gives the skin its color.

• Keratin

• Chlorophyll

• Melanin

• Melanocyte

• Keratinocyte

Pigment-producing skin cells.

• Keratin

• Chlorophyll

• Melanin

• Melanocyte

• Keratinocyte

The protein that helps waterproof the skin.

• Keratin

• Chlorophyll

• Melanin

• Melanocyte

• Keratinocyte

The cells that produce the waterproofing protein found in the skin.

• Keratin

• Thermoreceptors

• Melanin

• Melanocyte

• Keratinocyte

A thin layer of tissue that covers internal body cavities and secretes a fluid that reduces friction 

between layers.

• Mucous Membrane

• Serous Membrane

• Basal Membrane

• Synovial membrane

• Corpus Lucidium