loose connective tissue

dense connective tissue

Adipose tissue

reticular tissue

Flat, multi-projected: large nucleus, light staining, weak basophilic; RER, GC, ribosome; Can produce fiber and matrix

Functionally active and polydactyly shaped; Polyeosinophilic Lysosomes, phagosomes, engulfing vesicles; microfilaments, microtubules, pseudopods; It has the functions of phagocytosis, antigen presentation (participating in immune response) and secretion; chemotactic directional movement derived from monocytes

Round or oval, nuclei deviated to one side; chromatin radiated, shaped like a wheel; basophilic RER, GC, free ribosomes, centrosomes Derived from B lymphocytes, can produce antibodies, humoral immunity

Round or oval, round and small nucleus; metachromatic basophilic granules, which can be stained purple by aldehyde-fuchsin, allergic reaction

LM: The body is large, round or polygonal, the nucleus is oblate and tilted to one side, and the cytoplasm contains large lipid droplets. Function: Synthesize and store fat, participate in energy metabolism

Distribution: around small blood vessels Shape: Like fiber cells, small, spindle-shaped Function: Multi-directional differentiation potential, can proliferate and differentiate into fibroblasts, endothelial cells, smooth muscle cells, etc.

Derived from blood, including neutrophils, eosinophils, lymphocytes Function: immune defense

Most; acidophilic, wavy, varying thicknesses There are periodic horizontal stripes (EM) Type I collagen

Aldehyde fuchsin stains purple Type I collagen Core: elastin; Periphery: microfibrils

Silver nitrate dyes it black, also called silver-eating fiber periodic stripes type III collagen

protein

Polysaccharide: hyaluronic acid, sulfated

Molecular sieve-storage moisture, defense barrier

Fibronectin (FN), laminin (LN), cartilage nectin, etc.

fluid that leaks from the arterial end of a capillary into the stroma material exchange