Overview Rash from poison ivy. Many people develop an itchy rash that causes lines or streaks that look like this. Poison ivy, oak and sumac: Overview Many people get a rash from poison ivy, poison oak, and poison sumac. This rash is caused by an oil found in the plants. This oil is called urushiol (you-ROO-shee-all).
Cells in heart muscle process a lot of energy, so they have a large number of mitochondrion, the part of the cells where energy is made. Like all living things, cells die. The number of cells that an adult male loses per minute is roughly 96 million.
Human cell division is the process by which cells within the human body divide their chromosomes and split in to two daughter cells to sustain the organisms in which they reside. Cell division is also how humans, and the organs within them, grow. The process by which somatic, or body, cells divide is called mitosis. The steps that humans and animals undergo during mitosis are identical.