dendrite manganese oxides from morocco. natural mineral stone on a black background surrounded by moss. mineralogy

cell system human medicine immune blood white dendritic lymphocyte receptor biology science t killer natural immunity disease anatomy nerve brain axon diagram health body healthcare medical neural structure macrophage granulocyte network education monocyte adaptive nervous 3drendering helper illustration metastasis microbiology nucleus inflammation neutrophil costimulation synapse basophil accessory dendrite organism