Fat Body


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fat body

[′fat ‚bäd·ē]
(invertebrate zoology)
A nutritional reservoir of fatty tissue surrounding the viscera or forming a layer beneath the integument in the immature larval stages of many insects.
(vertebrate zoology)
A mass of adipose tissue attached to each genital gland in amphibians.

Fat Body

 

(1) Areolar tissue in the body of insects and some other arthropods that fills the spaces between the internal organs and underlying walls of the body. The cells of the fat body are rich in fat (hence the name). It is filled with tracheae and may be white, orange, yellow, or green. The cells of the fat body are the site where nutrients (fats, proteins, and carbohydrates) accumulate and where metabolic products (uric acid salts and so forth) accumulate and are excreted. In larvae, the fat body consists of external (parietal) and internal (visceral) lobes. This division is indistinct in adult insects.

In some luminescing insects, the fat body or a separate organ contains a luminescing substance called luciferin. In many insects, the fat body contains the so-called mycetomes—symbiontic microorganisms (bacteria, fungi) that participate in metabolism and are found in certain parts of the fat body.

(2) In amphibians, the fat body is a yellow irregularly shaped structure located above each testis that nourishes the testis and the spermatozoa developing in it.

References in periodicals archive ?
Their confirmatory qPCR experiments performed with lipopolysacharides-injected larvae showed that fat body and hemocyte transcripts of lysozyme, gloverinlike, cecropin, attacin and lebocin-like (here named "heliocin") peptides were induced with temporal expression profiles slightly delayed from those in this report.
Uric acid is probably synthesized in insect fat body (Candy 1985) and is the primary metabolic waste product of most insects (Chapman, 1998; Nation 2002).
The fat body can be removed using forceps, or a disposable plastic pipette can be used to suck it up from the dissection tray.
marmorata, masses of liver and fat body were not highly variable during high gonadic volume (April-August; Table 3).
because when you tone or build muscle, it helps change fat body mass to lean body mass.
It is also recognized that lean body mass, a well-known result of resistance exercise, uses more calories than fat body mass.
During ovarial develop-ment, lipids synthesized in the fat body are transported to the developing ovary, and stored for use in embryogenesis.
IS she a skinny woman inside a fat body, like she says?
Secondary signs & symptoms: A fat body, heart palpitations, a bland taste in the mouth, reduced eating, nausea, phlegm drool, somnolence, deviation of the mouth and eyes, slimy tongue fur, and a slippery pulse
I think of your daughter, the sweet, fat body I held so many years ago, how she transforms, year by year into something long, narrow, her eyes wider than a child's eyes, her fingers, longer than a child's fingers, as if she is reaching for something not quite hers just yet, as if she has already seen something not quite hers just yet.
Then I noticed the long tail and fat body of a well-fed rat.
The nerve cell, also called a neuron, has a fat body containing the nucleus.