False-colour transmission electron micrograph (TEM) of a single basophil,a type of white blood cell. Basophils are the least common of the white cells. This section shows the characteristic bilobed nucleus (orange and green) and numerous large,membrane-bound granules (red),packed with the vasoactive substances heparin (an anticoagulant),histamine & slow-reacting substance of anaphylaxis (SRS-A). Histamine & SRS- A exert a variety of effects on blood vessel walls and on the permeability of blood capillaries. Magnification: x7,000 at 6x7cm size,x3,100 at 35mm size | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / CNRI |
Bildgröße: | 3803 px × 2958 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |