First, a little background (skip down to the short answer if you already know this) because it helps to first take a couple steps backwards in order to understand. You can trace the major tissue types in the human body back to the embryo, which has three "germ layers" called endoderm (inner layer - differentiates into the "inner" coverings like epithelial linings of organs, etc), mesoderm (middle layer - differentiates into mesenchyme - connective tissue, etc.), and ectoderm (outer layer - differentiates into "outer" protective coverings like epidermis, enamel, but also forms the nervous system).
It boils down to this...ectoderm and endoderm form the "parenchymal" tissue or "parenchyma." This tissue is composed of the highly specialized cells that "do the work" in an organ. For example, hepatocytes in the liver are cells that make proteins, make cholesterol, bile salts, etc. Another example would be the parietal cells in the stomach that release hydrochloric acid, and on and on and on.
The mesoderm differentiates into the mesenchyme, which is basically "everything else." The cells in these tissues play a support function. For example, mesenchymal tissue aids parenchymal tissues by providing blood, nutrients, structural support in the form of connective tissues.
Short Answer: Mesenchyme originates from the mesoderm (loose connective tissue) and eventually differentiates into the body's connective tissues (eg supporting framework in muscle, skin, organs, the ligaments, tendons, cartilage, bone, etc.), AND it also differentiates into blood vesselsand lymphatic vessels that circulate oxygen, nutrients, enzymes/ proteins, hormones, white blood cells, they clear waste, etc. Mesenchyme tissue does the "grunt work." Therefore, these 3 categories essentially play various support roles for the specialized, "functional" (parenchymal) cells in the tissues/ organs.
Mesenchyme tissue means Epithelial tissue.
Undifferentiated mesenchymal tissue
Mesenchyme
Embryonic Connective tissue: mesenchyme
Mesenchyme
true
Undifferentiated mesenchymal tissue
Mesenchyme
Embryonic Connective tissue: mesenchyme
Mesenchyme
true
connective tissue
All connective tissue arise from mesenchyme, meaning they all come from a common origin.
Articular (AKA Hyaline) cartilage is formed from condensed mesenchyme tissue, which differentiates into chrondrocytes and begins secreting extracellular matrix.
Articular (AKA Hyaline) cartilage is formed from condensed mesenchyme tissue, which differentiates into chrondrocytes and begins secreting extracellular matrix.
The Mesoderm forms the somites, the notochord and the mesenchyme. It is mainly the somites and mesenchyme that develop into the bones
BLOOD. It does not conncet things or give mechanical support. It is classified as connective tissue because it develops from mesenchyme and consists of blood cells, surronded by a nonliving fluid matrix called blood plasma.
In embryogenesis, the skeletal system is derived from the mesoderm germ layer. Chondrification (also known as chondrogenesis) is the process by which cartilage is formed from condensed mesenchyme tissue, which differentiates into chondrocytes and begins secreting the molecules that form the extracellular matrix.