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The cell on the left is going through mitosis and its chromosomes have condensed. Cell nucleus: A cell's information center, the cell nucleus is the most conspicuous organelle found in a eukaryotic cell. It houses the cell's chromosomes, and is the place where almost all DNA replication and RNA synthesis (transcription) occur.
This is a list of human anatomy mnemonics, categorized and alphabetized.For mnemonics in other medical specialties, see this list of medical mnemonics.Mnemonics serve as a systematic method for remembrance of functionally or systemically related items within regions of larger fields of study, such as those found in the study of specific areas of human anatomy, such as the bones in the hand ...
The cell is the fundamental unit of structure and function in all living organisms. [14] The activity of an organism depends on the total activity of independent cells. [15] Energy flow (metabolism and biochemistry) occurs within cells. Cells contain DNA which is found specifically in the chromosome and RNA found in the cell nucleus and ...
Lewis Thomas published multiple books throughout his career, the first being The Lives of a Cell: Notes of a Biology Watcher. In 1979 he published The Medusa and the Snail: More Notes of a Biology Watcher. He wrote an autobiographical book in 1983, The Youngest Science: Notes of a Medicine-Watcher.
T-cell–B-cell discordance – A normal immune response is assumed to involve B and T cell responses to the same antigen, even if we know that B cells and T cells recognise very different things: conformations on the surface of a molecule for B cells and pre-processed peptide fragments of proteins for T cells. However, there is nothing as far ...
Body memory (BM) is a hypothesis that the body itself is capable of storing memories, as opposed to only the brain. While experiments have demonstrated the possibility of cellular memory [1] there are currently no known means by which tissues other than the brain would be capable of storing memories.
As chairman of the Northern Kentucky chapter of People Advocating Recovery, Merrick has advocated for greater access to naloxone, the drug that can revive a heroin overdose victim, tirelessly passed out free naloxone kits, and pressed the medical establishment to start treating addicts with Suboxone.
Cells have the ability to 'self-destruct'; a process known as apoptosis. This is required for organisms to grow and develop properly, for maintaining tissues of the body, and is also initiated when a cell is damaged or infected. Cancer cells, however, lose this ability; even though cells may become grossly abnormal, they do not undergo apoptosis.