Coloured scanning electron micrograph (SEM) of a macrophage white blood cell (purple) engulfing a tuberculosis (Mycobacterium tuberculosis) bacterium (pink). Wow I had TB when I was a kid, like 4 yrs old.
Coloured scanning electron micrograph (SEM) of a red blood cell squeezing out of a torn capillary. A capillary is the smallest type of blood vessel, often only just large enough for red blood cells to pass through.
scienceyoucanlove: “ Brain and spinal cord with dural membranes (meninges) still intact, held aloft and viewed posteriorly. Below the skull and around the spinel cord are three special coverings called the meninges. You may have heard of the illness.