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Longman Dictionary of Contemporary English
excretion
noun
COLLOCATIONS FROM CORPUS
■ ADJECTIVE
faecal
▪ Even more recently Hammer etal measured the magnitude of faecal carbohydrate excretion in five patients with exocrine pancreatic insufficiency.
▪ They showed that three of the five patients had excessive faecal excretion of carbohydrate and organic acids.
▪ Intake of diary products was less in the patients and probably contributed to the normal faecal fat excretion.
▪ Thus a correlation between faecal fat and faecal bile acid excretion has not been seen in all studies.
▪ Furthermore, dietary manipulation studies have shown that high fat intake can increase faecal bile acid excretion.
▪ Only one of four studies in polyps has shown any increase in faecal bile acid excretion in this group.
▪ Similar difficulties arise in the interpretation of another study of polyp patients that showed no differences in faecal bile acid excretion.
▪ In contrast, Rijk etal evaluated the faecal excretions of healthy volunteers with accelerated transit time after a single dose.
fat
▪ Intake of diary products was less in the patients and probably contributed to the normal faecal fat excretion.
urinary
▪ The two groups were strictly similar for all variables, especially for initial blood pressure and urinary albumin excretion.
▪ Use of diuretics that increase the urinary excretion of bicarbonate can cause metabolic acidosis. 291.
▪ Variability in 24 hour urinary albumin excretion within and between subjects was 35% and 66% respectively.
▪ Xanthinuria is a rare hereditary deficiency of xanthine oxidase, which results in hypouricemia and diminished urinary uric acid excretion.
▪ Its endogenous synthesis and urinary excretion have been well established, but no consensus exists concerning the mode of intestinal absorption.
▪ Because of this increase in the conjugated fraction, urinary bilirubin excretion is positive.
▪ Figure 1 shows the individual changes in urinary albumin excretion with time and treatment.
■ NOUN
albumin
▪ Measurement of the albumin excretion rate requires an accurately timed collection of urine, which is difficult in routine clinical practice.
▪ The two groups were strictly similar for all variables, especially for initial blood pressure and urinary albumin excretion.
▪ Variability in 24 hour urinary albumin excretion within and between subjects was 35% and 66% respectively.
▪ Figure 1 shows the individual changes in urinary albumin excretion with time and treatment.
potassium
▪ Sodium Sodium delivery to the distal tubule is necessary for adequate potassium excretion.
▪ Should the supply of sodium ions presented to the distal exchange sites decrease, potassium excretion decreases also.
▪ Acidemia tends to decrease potassium excretion, and alkalemia tends to increase potassium excretion.
sodium
▪ They also promote sodium excretion and induce a mild volume contraction.
▪ For a subject in balance, sodium excretion equals sodium intake.
▪ Treatment includes augmentation of sodium excretion with diuretics and water administration.
■ VERB
increase
▪ Furthermore, dietary manipulation studies have shown that high fat intake can increase faecal bile acid excretion.
▪ Use of diuretics that increase the urinary excretion of bicarbonate can cause metabolic acidosis. 291.
▪ This is a rare familial disorder in which conjugated bilirubin levels are increased due to defective excretion of bilirubin in the bile.
▪ Acidemia tends to decrease potassium excretion, and alkalemia tends to increase potassium excretion.
▪ Additionally, there will be an increased renal excretion of potassium causing a decrease of potassium in the extracellular fluid. 258.
EXAMPLES FROM CORPUS
▪ And might add thoughtfully, if excretion depends upon metabolism in the liver, I wonder what's happening there.
▪ Intake of diary products was less in the patients and probably contributed to the normal faecal fat excretion.
▪ Most factors that normally or pathologically alter renal magnesium excretion operate in the loop of Henle.
▪ The excretion of mercury by the kidney generally forms the basis for measurement of exposure.
▪ The use of rose bengal dye was the first attempt at assessing liver function through dye excretion.
▪ These patients typically have mild renal insufficiency and diminished urate excretion due to renal tubular damage.
▪ They showed that three of the five patients had excessive faecal excretion of carbohydrate and organic acids.
▪ We have recently shown that at such an excretion rate, breath exhalation is about 50-60% of the total excretion.
The Collaborative International Dictionary
Excretion

Excretion \Ex*cre"tion\, n. [Cf. F. excr['e]tion.]

  1. The act of excreting.

    To promote secretion and excretion.
    --Pereira.

  2. That which is excreted; excrement.
    --Bacon.

Douglas Harper's Etymology Dictionary
excretion

c.1600, "action of excreting;" 1620s, "that which is excreted," from French excrétion (16c.), from Latin excretionem (nominative excretio), noun of action from past participle stem of excernere "to sift out, separate" (see excrement).

Wiktionary
excretion

n. 1 The process of remove or ejecting material that has no further utility, especially from the body; the act of excrete. 2 Something being excreted in that manner.

WordNet
excretion
  1. n. the bodily process of discharging waste matter [syn: elimination, evacuation, excreting, voiding]

  2. waste matter (as urine or sweat but especially feces) discharged from the body [syn: body waste, excreta, excrement, excretory product]

Wikipedia
Excretion

Excretion is the process by which metabolic wastes and other non-useful materials are eliminated from an organism. In vertebrates this is primarily carried out by the lungs, kidneys and skin. This is in contrast with secretion, where the substance may have specific tasks after leaving the cell. Excretion is an essential process in all forms of life. For example, in mammals urine is expelled through the urethra, which is part of the excretory system. In single-celled organisms, waste products are discharged directly through the surface of the cell.

Green plants produce carbon dioxide and water as respiratory products. In green plants, the carbon dioxide released during respiration gets utilized during photosynthesis. Oxygen is a by product generated during photosynthesis, and exits through stomata, root cell walls, and other routes. Plants can get rid of excess water by transpiration and guttation. It has been shown that the leaf acts as an 'excretophore' and, in addition to being a green plant's primary organ of photosynthesis, is also used as the plant's method of excreting toxic wastes via diffusion. Other waste materials that are exuded by some plants — resin, saps, latex, etc. are forced from the interior of the plant by hydrostatic pressures inside the plant and by absorptive forces of plant cells. These latter processes do not need added energy, they act passively. However, during the pre-abscission phase, the metabolic levels of a leaf are high. Plants also excrete some waste substances into the soil around them.

In animals, the main excretory products are carbon dioxide, ammonia (in ammoniotelics), urea (in ureotelics), uric acid (in uricotelics), guanine (in Arachnida) and creatine. The liver and kidneys clear many substances from the blood (for example, in renal excretion), and the cleared substances are then excreted from the body in the urine and feces.

Aquatic animals usually excrete ammonia directly into the external environment, as this compound has high solubility and there is ample water available for dilution. In terrestrial animals ammonia-like compounds are converted into other nitrogenous materials as there is less water in the environment and ammonia itself is toxic.

Birds excrete their nitrogenous wastes as uric acid in the form of a paste. This is metabolically more expensive, but allows more efficient water retention and it can be stored more easily in the egg. Many avian species, especially seabirds, can also excrete salt via specialized nasal salt glands, the saline solution leaving through nostrils in the beak.

In insects, a system involving Malpighian tubules is utilized to excrete metabolic waste. Metabolic waste diffuses or is actively transported into the tubule, which transports the wastes to the intestines. The metabolic waste is then released from the body along with fecal matter.

The excreted material may be called dejecta or ejecta. In pathology the word ejecta is more commonly used.

Usage examples of "excretion".

A vial of that which is first passed in the morning, should be sent with the history of the case, as chronic rheumatism effects characteristic changes in this excretion, which clearly and unmistakably indicate the abnormal condition of the fluids of the body upon which the disease depends.

From observing its action in the cure of this and other miasmatic diseases, and knowing its composition, we are thoroughly satisfied that it contains chemical properties which neutralize and destroy the miasmatic or ague poison which is in the system, and, at the same time, produces a rapid excretion of the neutralized poisons.

The walls are covered with excreta chemically similar to the pile excretions, which forms a mastic to reinforce the tunnel against .

These faculties impart tone to the system, sustain the processes of nutrition, circulation, assimilation, secretion and excretion, and their distinguishing characteristics are vigor, tension, and elasticity.

Nothing should deter one from giving to this excretion the attention it deserves.

Nutritious diet, frequent alkaline baths to keep the skin in good condition and favor excretion through its pores, and a general hygienic regulation of the daily habits, are of the greatest importance.

It is also powerful in eliminating those morbid humors which are afterwards subjected to excretion through various organs.

It is a matter of surprise that physicians generally pay so little attention to the urine when dyspepsia is suspected, since all admit that an examination of that excretion furnishes unmistakable evidence of the nature and complications of the disease.

Although the microscope is of inestimable value in examining the renal excretion, it does not entirely supersede other valuable instruments and chemical re-agents in determining constitutional changes.

Absorption, assimilation, excretion, and also reproduction are performed by all classes of cells.

Define absorption, excretion, and assimilation as applied to the cells.

These compounds are carried by the blood to the organs of excretion, where they are removed from the body.

They must take it in excess of their needs, regardless of the effect, at least until the organs of excretion can throw off the surplus as waste.

While in theory excretion may be regarded as a distinct physiological act, it is, in fact, leaving out the work of the lungs, but a phase of the work of glands.

While the chief work of the liver is perhaps not that of excretion, its functions may here be summarized.