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Cells in sentence

1993 examples of Cells in a sentence

Tissue-specific stem cells replace the existing cells in your organs as they wear out and die.
Embryonic stem cells are created from leftover embryos that are willingly donated by patients from fertility clinics.
Unlike tissue-specific stem cells, embryonic stem cells are pluripotent.
A third kind of stem cells is called induced pluripotent stem cells.
These are regular skin, fat, liver, or other cells that scientists have changed to behave like embryonic stem cells.
Like embryonic stem cells, they, too, can become any kind of cell in the body.
While scientists and doctors hope to use all of these kinds of stem cells to create new tissue to heal your body, they can also use stem cells to help understand how the body works.
Scientists can watch stem cells develop into tissue to understand the mechnanisms that the body uses to create new tissue in a controlled and regulated way.
The energy of light tells us how it will interact with matter, for example, the cells of our eyes.
The olfactory epithelium has a layer of olfactory receptor cells, special neurons that sense smells, like the taste buds of your nose.
As they dissolve, they bind to the olfactory receptor cells, which fire and send signals through the olfactory tract up to your brain.
But there's still a lot we don't know about this little patch of cells, too.
Letting just a small proportion of cells signal at any one time, known as sparse coding, uses the least energy, but carries the most information.
Worse, if a big proportion of cells never fire, then they are superfluous and evolution should have jettisoned them long ago.
The solution is to find the optimum proportion of cells that the brain can have active at once.
For maximum efficiency, between 1% and 16% of cells should be active at any given moment.
This is what remains of tomatoes cells after they go through the ketchup treatment.
When it comes to dietary or medical information, the first thing to remember is that while studies on animals or individual cells can point the way towards further research, the only way to know how something will affect humans is through a study involving human subjects.
Well, when you get hurt, special tissue damage-sensing nerve cells, called nociceptors, fire and send signals to the spinal cord and then up to the brain.
Processing work gets done by cells called neurons and glia.
Another system of interconnected brain cells called the salience network decides what to pay attention to.
For mild pain, non-prescription medications can act on cells where the pain signals start.
You may know that we shed our skin, losing about 30-40,000 skin cells per hour.
Every time a needle penetrates, it causes a wound that alerts the body to begin the inflammatory process, calling immune system cells to the wound site to begin repairing the skin.
First, specialized cells called macrophages eat the invading material in an attempt to clean up the inflammatory mess.
As these cells travel through the lymphatic system, some of them are carried back with a belly full of dye into the lymph nodes while others remain in the dermis.
Some of the ink particles are also suspended in the gel-like matrix of the dermis, while others are engulfed by dermal cells called fibroblasts.
Initially, ink is deposited into the epidermis as well, but as the skin heals, the damaged epidermal cells are shed and replaced by new, dye-free cells with the topmost layer peeling off like a heeling sunburn.
Dermal cells, however, remain in place until they die.
When they do, they are taken up, ink and all, by younger cells nearby, so the ink stays where it is.
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