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 ?
historical circulation of the fat body in Western culture.
This metabolic pattern is consistent with our observations of weight modifications for liver and fat body from maturation through the spawning period.
With his customary brilliance, Gilman tries to balance the history of pathologizing the fat body with his conviction that the subject "generates multiple meanings ...
In females (1999), fat body wet mass was significantly correlated with carcass lipids (F = 37.22, P < 0.001, [r.sup.2] = 0.71), fat body lipids (F = 601.23, P < 0.001, [r.sup.2] = 0.88), and storage lipids (F = 506.67, P < 0.001, [r.sup.2] = 0.84).
This is the first study that includes all the months in which the adults remain active on the reproductive and fat body cycles of an abundant Cape endemic species
"We called her ET because she had a great big fat body and a little head.
As in late third-instar larvae, the wing and leg discs did not stain, nor did the brain, ventral ganglion, or fat body.
Once in a larva, this virus appears to move into the insect's "fat body" -- a structure with a function somewhat analogous to that of the human liver.
On the dog side of the study, high-protein foods were the least popular among younger animals with less fat body mass; dogs with greater fat body mass had the strongest preference for getting calories from protein.
Neoliberal Bodies and the Gendered Fat Body. Abingdon, UK: Routledge, 2016.
In this swift movement, it would seem that the fat body would not be an ideal mannequin, such as a good clothes rack, nor a good showcase for clothes and accessories.