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Integument

Definition

noun

(1) (anatomy) The outer protective covering of (the body of) an organism, such as cuticle, fur, shell, rind, seed coat, etc.; the skin including the glands and appendages such as hair, nails, feathers, scales, horns, hooves and claws.

(2) (botany) The outer cell layers of the ovule enclosing the nucellus.


Supplement

In anatomy, the integument of humans and vertebrates is the largest organ of the body. It performs many vital functions that include protection against thermal, chemical, abrasive injuries and pathogens, sensation, secretion, vitamin D synthesis, insulation and thermoregulation.

In botany, the integuments are the outer layer(s) of the ovule and develop into a seed coat as the ovule matures following fertilization. Gymnosperms usually have one integument layer while angiosperms usually have two.


Word origin: Latin integumentum (a covering)

Related forms: integumentary (adjective)

See also: skin

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Book recommendation for exam

... parathyroid, adrenal, pancreas, gonads) and their interrelationships. 18. Comparative functional anatomy of various systems of vertebrates (integument and its derivatives, endoskeleton, locomotory organs, digestive system, respiratory system, circulatory system including heart and aortic ...

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by bertstare
Sun Oct 21, 2012 2:19 pm
 
Forum: Zoology Discussion
Topic: Book recommendation for exam
Replies: 3
Views: 6475

Membrane question

1. Cutaneous membrane(integument/skin) a)The epidermis is composed of what specific tissue? b)Whar are the protective functions of the epidermis c)What kind of tissue forms the dermis? 2.Responsd to the following statements by choosing ...

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by tomkkk
Mon Jan 10, 2011 3:43 am
 
Forum: General Discussion
Topic: Membrane question
Replies: 0
Views: 2721

Re: Animal Qs.

The tissue type repsonsible for protection of the body from the external environment? -skin, epithelium or integument? I am thinking epithehelium do you think it's the most upper layer or one of the below? Which best explains why long bones are hollowin themiddle? - lighten ...

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by JackBean
Wed Jan 05, 2011 11:59 am
 
Forum: Zoology Discussion
Topic: Animal Qs.
Replies: 1
Views: 4237

tissues/histology

The tissue type repsonsible for protection of the body from the external environment? -skin, epithelium or integument? I am thinking epithehelium -------------------------------------------------------------- Which best explains why long bones are hollowin themiddle? - lighten ...

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by Nicolodn
Sat Nov 13, 2010 11:12 am
 
Forum: Cell Biology
Topic: tissues/histology
Replies: 1
Views: 4286

Animal Qs.

... the ones I'm not sure about. THANKS. The tissue type repsonsible for protection of the body from the external environment? -skin, epithelium or integument? I am thinking epithehelium -------------------------------------------------------------- Which best explains why long bones are hollowin ...

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by Nicolodn
Sat Nov 13, 2010 6:21 am
 
Forum: Zoology Discussion
Topic: Animal Qs.
Replies: 1
Views: 4237
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