Integument

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integument

1. the protective layer around an ovule that becomes the seed coat
2. the outer protective layer or covering of an animal, such as skin or a cuticle
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Integument

 

the part of the ovary on seed plants that encloses the nucellus (the central part of the ovary). The ovaries of a number of plants have one integument, while others, particularly in the monocotyledonous plants, have two. After fertilization the integument turns into a seed coat.


Integument

 

in animals, including man, the tissues that cover the body and perform protective, tactile, metabolic (including gas exchange), and excretory functions. The integument sometimes performs the function of feeding, associated with the complete reduction of the intestine in tapeworms, acanthocepha-lans, and Pogonophora. Thermoregulation is sometimes a function of the integument.

In most invertebrates the integument consists of cutaneous epithelium, or epidermis, which is of ectodermal origin. It includes a mesodermal connective-tissue layer, or derma, in such invertebrates as nemertines and cephalopod mollusks and in vertebrates, including man. Derivatives of the integument are cutaneous glands, cuticles, the chitinous armor of arthropods, the shells of mollusks, scales, feathers, hair, claws, and nails.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

integument

[in′teg·yə·mənt]
(anatomy)
An outer covering, especially the skin, together with its various derivatives.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Based on the integumental pore pattern, Alvarez-Silva and Ramirez-Ruiz (1999) characterized two intraspecific groups of the postlarval shrimp Litopenaeus vannamei (Boone, 1931).
The umple is, then, the only recourse the women have to participating in the integumental process, but their participation is not complete, it is only an imitation of integumentum.
Increases observed for musculoskeletal/ integumental anomalies (ICD-9 754-757) were mostly associated with subcategories poly-/syn-/adactyly and "other musculoskeletal/ integumental malformations." Adjustment for parity and prenatal care, the only maternal covariates showing a significant effect, did not affect notably the high-wheat effect, as shown by the following adjusted ORs presented for combined males and females only: all musculoskeletal/integumental anomalies, OR = 1.50 (95% CI, 1.06-2.12); poly-/syn-/adactyly, OR = 2.27 (95% CI, 1.16-4.43); other musculoskeletal/integumental anomalies, OR = 1.72 (95% CI, 1.11-2.67).
Integumental lesions caused by ectoparasites in a wild population of the side-blotched lizard (Uta stansburiana).
It differs by being slightly smaller, dark brown integumental coloration with pale highlights at the base, longer antennae, and distribution.
A new Amazonian species of Cryptocellus (Arachnida, Ricinulei), with descriptions of its integumental structures and all free-living life stages.
Age * Characteristics Life stage 1 Gastrula Fertilized eggs 25 Prototrochal grindle larval Trochophore larvae shell rudiments 56 Velum food mass integumental Mid-veliger 74 attachment with larval Mid-veliger shell 97 Eye spots Late veliger 146 Cilia on roof of mantle Early benthic veliger cavity tentacles Average Size range Density Age * Family size ([micro]m) ([micro]m) (ind/ml) 1 P1 226 [+ or -] 1 205-245 1,298-2,341 P2 219 [+ or -] 2 187-226 888-2,228 25 P1 261 [+ or -] 2 234-284 642-1,468 56 P1 281 [+ or -] 1 261-305 178-767 74 P1 280 [+ or -] 1 261-296 103-948 P2 276 [+ or -] 1 256-306 219-811 97 P3 280 [+ or -] 1 259-294 257-751 P4 284 [+ or -] 2 273-295 278-621 146 P1 280 [+ or -] 2 265-294 333-932 P2 284 [+ or -] 1 255-305 217-917 Average size values are mean [+ or -] SE.
Because the integumental surfaces of these animals are in intimate contact with the surrounding milieu, passive water loss and uptake represent two of the major osmoregulatory challenges that need compensation.
Integumental water movement and rate of water ingestion during rain harvesting in the Texas horned lizard.
The specific epithet is a reference to the intense blue coloration and strongly rugose integumental sculpturing of the species.
ranae have direct life cycles and infection occurs by integumental penetration (Anderson 1992).