| A | B |
| Exocrine glands | Glands that secrete substances outward through a duct |
| Endocrine glands | Ductless glands that secrete hormones into the bloodstream |
| Merocrine glands | Exocrine glands that secrete without losing cellular material |
| Apocrine glands | Exocrine glands that have cytoplasm in their secretions |
| Holocrine glands | Exocrine glands whose secretions are made up of disintegrated cells |
| Extracellular matrix | The chemical substance located between connective tissue cells |
| Fibroblasts | Spindle-shaped cells that form connective tissue proper |
| Chondrocytes | Mature cartilage cells |
| Stromal cells | Cells that provide structure or support for parenchymal cells |
| Parenchymal cells | Cells that provide the actual function of the tissue |
| Labile cells | Cells that undergo mitosis regularly and quickly |
| Stable cells | Cells that do not regularly undergo mitosis but are able to if the need arises |
| Permanent cells | Cells that cannot undergo mitosis |