Tissue Layer -

At the cellular level, tissues are organized into four primary types that form layers throughout the body:

: A tough connective tissue layer containing blood vessels, nerves, and glands. tissue layer

: Binds, supports, and protects. Examples include bone, blood, and the dermis layer of the skin. At the cellular level, tissues are organized into

: Contracts to provide movement. Skeletal muscles are organized into layers of connective tissue: epimysium (outer), perimysium (middle), and endomysium (inner). : Contracts to provide movement

Several major organ systems are characterized by specific tissue layer arrangements: The skin consists of three primary layers:

: Forms coverings and linings. It is classified by cell shape (squamous, cuboidal, columnar) and number of layers— simple (single layer) or stratified (multiple layers).

: Mainly composed of adipose (fat) and loose connective tissue that anchors skin to underlying structures. Anatomy & Physiology Tissue Study Guide for Exam Success