would be the longest lived (e.g stem cells that form blood cells such as lymphocytes, red blood cells and platelets). Life span of human cells defined: most cells are younger than the individual. 1. 3-4 days. Stomach lining cells. 1 week or less. LONGEST (LIFETIME) Stem cells.Many types of stem cell form during embryogenesis and persist with the same functionality through to death. On average, the cells in your body are replaced every 7 to 10 years. Maximum life span (or, for humans, maximum reported age at death) is a measure of the maximum amount of time one or more members of a population have been observed to survive between birth and death.The term can also denote an estimate of the maximum amount of time that a member of a given species could survive between birth and death, provided circumstances that are optimal to that … In multicellular organisms, such as humans, the health of the organism depends on cell not exceeding their life span. overcrowding of cells would occur, causing uncontrolled growth that would be life-threatening. Lymphocytes. "The expression of telomerase LIFE SPAN -- 2in normal human cells should extend their lifespan indefinitely. CELL TYPE. Inferring. Sperm cells. 10 hours to 3 days. They are also killed by fresh water due to osmotic shock. The data table shows the life span of various human cells and contains information about their ability to multiply through cell division. 2 days. The lifespan of the BMU is 6–9 months; much longer than the lifespan of its executive cells ().Therefore, continuous supply of new osteoclasts and osteoblasts from their respective progenitors in the bone marrow is essential for the origination of BMUs and their progression on the bone surface. The human sperm life span of male sperm outside the body is reduced as the semen dries out. Although the our bodies are continuously replenishing their cells, some stick around for longer than others. The data table shows the life span of various human cells. Use the data to answer the questions below: 1) Inferring – white blood cells help protect the body from infection and pathogens. LIFESPAN. 2-3 days. 2 - 4 weeks. It also contains information about the ability of the cells to multiply through cell division. 10 days. 2 days. Platelets. An interesting human sperm fact is that the sperm is the smallest cell in the body, whilst the female egg is the largest. White blood cells … Colon cells. It would take 175,000 sperm to weigh as much as a female egg. Skin epidermal cells. This is especially true of cells that tend to divide rapidly. Granulocytes:eosinophils basophils, neutrophils. Normal human diploid cells placed in culture have a finite proliferative life-span and enter a nondividing state termed senescence, which is characterized by altered gene expression (1, 2).Replicative senescence is dependent upon cumulative cell divisions and not chronologic or metabolic time, indicating that proliferation is limited by a “mitotic clock” (). Epithelia of small intestine. Until now, defining the life span of specific human cell populations was limited by an inability to mark the exact time when cells were born in a way that can be detected over many years. It also contains information about the ability of the cells to multiply through cell division. Stomach lining cells. 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