Biology Chapter on Epithelial and Connective Tissue

A type of epithelial tissue that forms the outermost layer of the body and lines internal cavities and organs. It's characterized by its lack of blood vessels and its ability to provide protection, secretion, absorption, filtration, and diffusion.

A classification of epithelial tissue based on the number of cell layers. Simple epithelial tissue consists of a single layer of cells, allowing for efficient diffusion, osmosis, filtration, and absorption.

A classification of epithelial tissue based on the number of cell layers. Stratified epithelial tissue consists of multiple layers of cells, offering enhanced protection against wear and tear.

A classification of epithelial tissue based on the shape of its cells. Squamous epithelial cells are thin and flat, facilitating rapid passage of substances.

A classification of epithelial tissue based on the shape of its cells. Cuboidal epithelial cells are cube-shaped, involved in secretion and absorption.

Glands that release their secretions directly into the bloodstream, where they travel to target cells.

Glands that release their secretions through ducts onto a surface.

The non-living material that surrounds connective tissue cells, giving it structure and strength.

Immature connective tissue cells that secrete the ground substance and fibers of the ECM.

The fluid component of the ECM, providing space for cells and nutrients.

Strong, fibrous proteins in the ECM that provide support and strength.

Immature connective tissue cells responsible for breaking down and remodeling the ECM.

Mature connective tissue cells, typically less active than blasts.

Collagen fibers arranged in bundles, coated with glycoproteins, providing support for blood vessels and forming a framework around soft organs like the spleen and lymph nodes.

The non-living material found outside the cells of connective tissue, composed of ground substance and fibers.

Large, flat cells with branching processes involved in producing fibers (collagen, elastin, reticular) and ground substance in connective tissue.

White blood cells that originate from monocytes, responsible for engulfing and destroying bacteria and other harmful pathogens.

Cells that play a crucial role in triggering the body's immune response to inflammation and infection.

The process where immature

Connective tissue proper, supporting connective tissue (cartilage and bone), and liquid connective tissue (blood).

Connective tissue that provides flexible support, with a high abundance of fibers in the ground substance. Found in tendons and ligaments.

Flat sheets of pliable tissue that cover or line body parts.

Mature blast cells develop into "cytes" which play a crucial role in maintaining the health of the extracellular matrix.

Connective tissues provide structural support, bind different tissues together, protect organs, and create compartments within the body. They also have specialized roles like energy storage (adipose tissue) and transportation (blood).

Membranes composed of an epithelial layer attached to underlying connective tissue. They are designed to line cavities.

Connective tissue is highly vascularized, meaning it has a rich blood supply. This supply often supports nearby epithelial tissues.

Type of epithelial membrane that lines body cavities that open to the exterior and secrete mucus.

Type of epithelial membrane that lines cavities that don't open to the exterior and secrete lubricating fluid.

The ECM plays a crucial role in determining the functional characteristics of a tissue. For example, bone is hard due to its rigid ECM, while cartilage is flexible.

Type of epithelial membrane that covers the surface of the body.

Membranes found when two bones articulate. They lack epithelium and are composed of synoviocytes that secrete synovial fluid.

ECM fibers are three types: Collagen (strongest, resists pulling), Elastic (stretchable, abundant in skin), and Reticular (fine, supporting networks).

Muscle tissue composed of long, cylindrical, striated fibers that are controlled voluntarily. They are attached to bones by tendons.

GAGs (glycosaminoglycans) are large molecules in ground substance that trap water, giving it a gel-like consistency and contributing to its ability to support cells and facilitate exchange.

Muscle tissue characterized by branched, striated fibers with a single, centrally located nucleus. These fibers are connected by intercalated discs and are involuntary.

A type of tissue that covers surfaces, forms linings, and creates glands. It's tightly packed with cells, lacks blood vessels (avascular), and interacts directly with the environment.

A type of tissue that supports, protects, and binds other tissues together. It's characterized by having a few cells and a lot of extracellular matrix (ECM), which is like a glue that holds everything together.