Home › Entities › class_of_anatomical_entity › yolk sac

yolk sac

membranous sac attached to an embryo, formed by cells of the hypoblast adjacent to the embryonic disk
AnatomicalStructure class_of_anatomical_entity Q369887
yolk sac
Henry Vandyke Carter · Public Domain · Wikimedia
Press Enter · cited answer in seconds

yolk sac

Summary

yolk sac is a class of anatomical entity[1]. It draws 570 Wikipedia views per month (class_of_anatomical_entity category, ranking #219 of 1,372).[2]

Key Facts

  • yolk sac's instance of is recorded as class of anatomical entity[3].
  • yolk sac is made of egg yolk[4].
  • yolk sac is a type of extra-embryonic structure[5].
  • yolk sac is a type of particular anatomical entity[6].
  • yolk sac's Commons category is recorded as Yolk sacs[7].
  • yolk sac's described by source is recorded as Gray's Anatomy (20th edition)[8].
  • yolk sac's described by source is recorded as Brockhaus and Efron Encyclopedic Dictionary[9].
  • yolk sac's described by source is recorded as Small Brockhaus and Efron Encyclopedic Dictionary[10].

Why It Matters

yolk sac draws 570 Wikipedia views per month (class_of_anatomical_entity category, ranking #219 of 1,372).[2] It has Wikipedia articles in 24 language editions, a strong signal of global cultural recognition.[11] It is known by 3 alternative names across languages and contexts.[12]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . Foundational Model of Anatomy. Retrieved . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . bartleby.com. Retrieved . bartleby.com. Provenance: wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [11] ↑ . Wikidata sitelinks. wikidata.org.
  3. [12] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). yolk sac. Retrieved May 3, 2026, from https://4ort.xyz/entity/yolk-sac
MLA “yolk sac.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/yolk-sac.
BibTeX @misc{4ortxyz_yolk-sac_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{yolk sac}}, year = {2026}, url = {https://4ort.xyz/entity/yolk-sac}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): yolk sac — https://4ort.xyz/entity/yolk-sac (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/yolk-sac · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 13d ago · InternetArchiveBot bot · 2026-05-18 view diff on Wikidata ↗
    Instance of → class of anatomical entity
    Aliases → —
    Local thumb → —
    Instance of → —
    + 4 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-references:1||1|2 */ [[Property:P10283]]: C2777043721, Rescuing 1 sources and submitting 0 for archiving. #IABot (v2.0.9.5)"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.