Phagocytosis
In cell biology, phagocytosis is the process by which a cell—often a phagocyte or a protist—engulfs a solid particle to form an internal vesicle known as a phagosome. Phagocytosis was first noted by Canadian physician William Osler, and later studied by Élie Metchnikoff.
Leukocytosis
Leukocytosis is white cells above the normal range in the blood. It is frequently a sign of an inflammatory response, most commonly the result of infection, but may also occur following certain parasitic infections or bone tumors as well as leukemia. It may also occur after strenuous exercise, convulsions such as epilepsy, emotional stress, pregnancy and labor, anesthesia, as a side effect of medication, and …
Full Answer
What makes your blood thicker than normal?
cytosis cy·to·sis ( sī-tō'sis ), 1. A condition in which there is more than the usual number of cells, as in the cytosis of spinal fluid in acute leptomeningitis. 2.
What is the difference between anisocytosis and poikilocytosis?
Jun 23, 2021 · Cytosis is a transport mechanism for the movement of large quantities of molecules into and out of cells. There are three main types of cytosis: endocytosis (into the cell), exocytosis (out of the cell), and transcytosis (through the cell, in and out).
What causes thick blood in humans?
Apr 28, 2020 · cytosis: 1. Suffix referring to cells, as in anisocytosis (inequality in the size of red blood cells), elliptocytosis (elliptical red cells), and phagocytosis (ingestion of cells). 2. Suffix connoting an increase in cells, as in leukocytosis (increase in white blood cells) and lymphocytosis (increase in lymphocytes).
What is leukocytosis and what causes it?
Jan 19, 2022 · What does Cytosis mean in Greek? cytosis: 1. Suffix referring to cells, as in anisocytosis (inequality in the size of red blood cells), elliptocytosis (elliptical red cells), and phagocytosis (ingestion of cells).2. Suffix connoting an increase in cells, as in leukocytosis (increase in white blood cells) and lymphocytosis (increase in lymphocytes).
What means Cytosis?
cytosis: 1. Suffix referring to cells, as in anisocytosis (inequality in the size of red blood cells), elliptocytosis (elliptical red cells), and phagocytosis (ingestion of cells). 2. Suffix connoting an increase in cells, as in leukocytosis (increase in white blood cells) and lymphocytosis (increase in lymphocytes).
What does acute Cytosis mean?
A condition in which there is more than the usual number of cells, as in the cytosis of spinal fluid in acute leptomeningitis.
What does Cyto mean in medical terms?
a cellCyto-: Prefix denoting a cell. "Cyto-" is derived from the Greek "kytos" meaning "hollow, as a cell or container." From the same root come the combining form "-cyto-" and the suffix "-cyte" which similarly denote a cell.
What is the suffix of Cytosis?
The combining form -ptosis is used like a suffix meaning “downward displacement or position.” It is often used in medical terms, especially in pathology. The combining form -ptosis comes from the Greek ptṓsis, meaning “a falling.”
What is an example of Cytosis?
Transcytosis is a type of cytosis that allows particles to be shuttled from one membrane to another. An example of this would be when a receptor normally lies on the basal or lateral membrane of an epithelial cell, but needs to be trafficked to the apical side.
Can low white blood cells cause death?
Infection. With a low white blood cell count and, in particular, a low level of neutrophils, you're at higher risk of developing an infection. And if you develop an infection when you have a low white blood cell count, your body can't protect itself. Infection can lead to death in severe cases.
What is cytology The study of?
Cytology is the exam of a single cell type, as often found in fluid specimens. It's mainly used to diagnose or screen for cancer. It's also used to screen for fetal abnormalities, for pap smears, to diagnose infectious organisms, and in other screening and diagnostic areas.
What does Cyte mean in science?
cellThe combining form -cyte is used like a suffix meaning “cell.” It is often used in medical and scientific terms, especially to name different types of cells.
What does cyst mean in science?
(sist) A closed, sac-like pocket of tissue that can form anywhere in the body. It may be filled with fluid, air, pus, or other material. Most cysts are benign (not cancer).
What is the medical term for death?
Listen to pronunciation. (mor-TA-lih-tee) Refers to the state of being mortal (destined to die). In medicine, a term also used for death rate, or the number of deaths in a certain group of people in a certain period of time.
Which suffix means pain?
For example, the word element -algia means "pain" or "ache", which can be combined with other word elements referring to parts of the body.
What is the medical term for hernia of the urinary bladder?
Medical Definition of cystocele : hernia of a bladder and especially the urinary bladder : vesical hernia.
What is the meaning of the word "cytosis"?
Etymology and pronunciation. The word cytosis ( / saɪˈtoʊsɪs /) uses combining forms of cyto- and -osis, reflecting a cellular process. The term was coined by Novikoff in 1961.
What is the purpose of cytosis?
Cytosis is a transport mechanism for the movement of large quantities of molecules into and out of cells . There are three main types of cytosis: endocytosis (into the cell), exocytosis (out of the cell), ...
What is the mechanism of clathrin-dependent endocytosis?
Mechanism of clathrin-dependent endocytosis. Clathrin-coated pits in endocytosis: The membrane of the cell invaginates using the protein clathrin. The clathrin uses actin to pull together the sides of the plasma membrane and form a vesicle inside the cellular cytosol.
What is transcytosis in the body?
Transcytosis is a type of cytosis that allows particles to be shuttled from one membrane to another. An example of this would be when a receptor normally lies on the basal or lateral membrane of an epithelial cell, but needs to be trafficked to the apical side. This can only be done through transcytosis due to tight junctions, which prevent movement from one plasma membrane domain to another. This type of cytosis occurs commonly in epithelium, intestinal cells, and blood capillaries. Transcytosis can also be taken advantage of by pathogenic molecules and organisms. Several studies have shown that bacterium can easily enter intestinal lumen through transcytosis of goblet cells. Other studies, however, are exploring the idea that transcytosis may play a role in allowing medications to cross the blood-brain barrier. Exploiting this fact may allow certain drug therapies to be better utilized by the brain.
What are the three main types of cytosis?
There are three main types of cytosis: endocytosis (into the cell), exocytosis (out of the cell), and transcytosis (through the cell, in and out).
How does cytosis affect the membrane?
Methods of cytosis not only move substances in, out of, and through cells, but also add and subtract membrane from the cell's plasma membrane. The surface area of the membrane is determined by the balance of the two mechanisms and contributes to the homeostatic environment of the cell.
What is the receptor-mediated endocytosis?
Receptor-mediated endocytosis. Receptor-mediated endocytosis is a mode of pinocytosis. Proteins in the clathrin coat on the plasma membrane have propensity to bind and trap macromolecules or ligands. However, it is not the receptors in the pit that caused the pinocytosis.
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Overview
Cytosis is a transport mechanism for the movement of large quantities of molecules into and out of cells.
There are three main types of cytosis: endocytosis (into the cell), exocytosis (out of the cell), and transcytosis (through the cell, in and out).
Etymology and pronunciation
The word cytosis (/saɪˈtoʊsɪs/) uses combining forms of cyto- and -osis, reflecting a cellular process. The term was coined by Novikoff in 1961.
Endocytosis
Endocytosis is when a cell absorbs a molecule, such as a protein, from outside the cell by engulfing it with the cell membrane. It is used by most cells, because many critical substances are large polar molecules that cannot pass through the cell membrane. The two major types of endocytosis are pinocytosis and phagocytosis.
Exocytosis
Exocytosis is when a cell directs the contents of secretory vesicles out of the cell membrane. The vesicles fuse with the cell membrane and their content, usually protein, is released out of the cell. There are two types of exocytosis: Constitutive secretion and Regulated secretion. In both of these types, a vesicle buds from the Golgi Apparatusand is shuttled to the plasma membrane, to be …
Transcytosis
Transcytosis is a type of cytosis that allows particles to be shuttled from one membrane to another. An example of this would be when a receptor normally lies on the basal or lateral membrane of an epithelial cell, but needs to be trafficked to the apical side. This can only be done through transcytosis due to tight junctions, which prevent movement from one plasma membrane domain to another. This type of cytosis occurs commonly in epithelium, intestinal cells, and bloo…
See also
• Clathrin
• Hydrolase
• Lysosome
• Phagocytosis
• Pinocytosis