Chapter 4

Tissue

Groups of cells located in a distinct region of the body that work together to carry out a specific function.

Histology

The study of tissues.

Avascular

Referring to epithelium that does not contain blood vessels.

Connective Tissue

The most abundant type of tissue in the human body, which binds structures, provides support, and protects organs.

Simple Epithelium

Epithelial tissue that is only one cell layer thick.

Stratified Epithelium

Epithelial tissue that is composed of two or more cell layers.

Microvilli

Fingerlike projections on the apical surface of epithelial tissue that increase surface area.

Goblet Cells

Specialized epithelial cells that produce mucus.

Chondrocytes

Mature cartilage cells located in lacunae.

Plasma

The liquid portion of blood, which is its matrix.

Erythrocytes

Red blood cells involved in transporting oxygen and carbon dioxide.

Necrosis

Premature, pathological death of tissue due to trauma, toxins, or infection.

Serous Membranes

Membranes that line body cavities not open to the external environment, made of simple squamous epithelium.

Neoplasia

Development of a tumor, either benign or malignant.

Basement Membrane

A layer of attachment between epithelial and connective tissue that regulates the movement of materials.

Fibrosis

The formation of fibrous connective tissue (scar tissue) over injured tissue.