Definition of Yolk gland. Meaning of Yolk gland. Synonyms of Yolk gland

Here you will find one or more explanations in English for the word Yolk gland. Also in the bottom left of the page several parts of wikipedia pages related to the word Yolk gland and, of course, Yolk gland synonyms and on the right images related to the word Yolk gland.

Definition of Yolk gland

Yolk gland
Yolk Yolk (y[=o]lk or y[=o]k; 277), n. [OE. yolke, yelke, [yogh]olke, [yogh]elke, AS. geoloca, geoleca, fr. geolu yellow. See Yellow.] [Written also yelk.] 1. The yellow part of an egg; the vitellus. 2. (Zo["o]l.) An oily secretion which naturally covers the wool of sheep. Yolk cord (Zo["o]l.), a slender cord or duct which connects the yolk glands with the egg chambers in certain insects, as in the aphids. Yolk gland (Zo["o]l.), a special organ which secretes the yolk of the eggs in many turbellarians, and in some other invertebrates. See Illust. of Hermaphrodite in Appendix. Yolk sack (Anat.), the umbilical vesicle. See under Unbilical.

Meaning of Yolk gland from wikipedia

- Among animals which produce eggs, the yolk (also known as the vitellus) is the nutrient-bearing portion of the egg whose primary function is to supply...
- Dilepididae, which have genital openings on both sides), and a compact yolk gland or vitellarium posterior to the ovary. Families include: Dipylidiidae...
- seminal vesicles (also called vesicular glands, or seminal glands), are a pair of two coiled tubular glands that lie behind the urinary bladder of some...
- an armed scolex. Proglottids have a central ovary, with a vitellarium (yolk gland) posterior to it. As in all cyclophyllid cestodes, a genital pore occurs...
- gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and gallbladder). Digestion involves the breakdown of...
- membranes. Some secretory components from the uterine glands are taken up by the secondary yolk sac lining the exocoelomic cavity during pregnancy, and...
- breaking the s****. The extraction takes 10 to 20 seconds. The orange-yellow yolk gland of female snails is usually shaken loose and not eaten. It often leaves...
- beginning in the prenatal period through menopause. It is also an endocrine gland because of the various hormones that it secretes. The ovaries are considered...
- hypothalamus, pituitary gland, and gonadal glands as if these individual endocrine glands were a single entity. Because these glands often act in concert...
- its spongioplasm and hyaloplasm, often called the formative yolk; and the nutritive yolk or deutoplasm, made of rounded granules of fatty and albuminoid...
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