Nerve cells. Coloured scanning electron micrograph (SEM) of nerve cells, known as neurones. Nerve cells occur in the brain, spinal cord, and in ganglia. Each nerve cell has a large cell body (brown) with several long processes extending from it. The processes usually consist of one thicker axon and several thinner branched dendrites. The dendrites collect information in the form of nerve impulses from other nerve cells and pass it to the cell body.
mitochondria packed between myofibrils in cardiac muscle the crystalline appearance of the numerous mitochondria is a result of densely packed cristae or infoldings of the inner membrane this design dramatically increases the surface area of the inner mitochondrial membrane in which ATP-producing machinery is embedded colored TEM credit: Science Photo Library
Phase contrast micrograph of spore formation and release in Aspergillus, an ascomycete, using a semi-thin stained section stained blue. Fermentation by certain Aspergillus species is involved in the production of soy sauce. Image by Spike Walker, posted on Wellcome Images. Pinned from The Cell: An Image Library http://www.cellimagelibrary.org/images/38950