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Sacrum — Anatomy Notes, Diagram & Quiz
The Sacrum is located in the pelvis. Fuses vertebrae and transmits weight to pelvis. The Sacrum is formed by fusion of five sacral vertebrae.
Key facts
| Location | Pelvis |
|---|---|
| Main function | Fuses vertebrae and transmits weight to pelvis. |
| Layer | skeleton |
| Key fact 1 | The Sacrum is formed by fusion of five sacral vertebrae. |
| Key fact 2 | The Sacrum articulates with the ilium on each side. |
| Key fact 3 | The Sacrum houses the sacral canal and foramina for nerves. |
Where is the Sacrum located?
The Sacrum is located in the pelvis.
The Sacrum is formed by fusion of five sacral vertebrae.
What does the Sacrum do?
Fuses vertebrae and transmits weight to pelvis.
The Sacrum articulates with the ilium on each side.
What to know for exams
- The Sacrum is formed by fusion of five sacral vertebrae.
- The Sacrum articulates with the ilium on each side.
- The Sacrum houses the sacral canal and foramina for nerves.
It belongs to the skeleton layer. Learn its location, relations, and the structures it works with.
Clinical relevance
The Sacrum houses the sacral canal and foramina for nerves.
Link the sacrum to its blood supply, innervation and relations. That is how exam questions usually test it.
Memory aid: Sacrum
The Sacrum is formed by fusion of five sacral vertebrae. The Sacrum articulates with the ilium on each side. The Sacrum houses the sacral canal and foramina for nerves.
Chain it as location → function → clinical link when you revise.
Sacrum anatomy quiz
Five questions. Open each answer after you commit to a response.
-
Where is the Sacrum located?
Reveal answer
Pelvis
-
What is the main function of the Sacrum?
Reveal answer
Fuses vertebrae and transmits weight to pelvis.
-
Give one key fact about the Sacrum.
Reveal answer
The Sacrum is formed by fusion of five sacral vertebrae.
-
Give another key fact about the Sacrum.
Reveal answer
The Sacrum articulates with the ilium on each side.
-
What clinical link is associated with the Sacrum?
Reveal answer
The Sacrum houses the sacral canal and foramina for nerves.
Common questions
Where is the Sacrum located?
The Sacrum is located in the pelvis. The Sacrum is formed by fusion of five sacral vertebrae.
What does the Sacrum do?
Fuses vertebrae and transmits weight to pelvis. The Sacrum articulates with the ilium on each side.
What is a key fact about the Sacrum?
The Sacrum houses the sacral canal and foramina for nerves.
What layer does the Sacrum belong to?
It belongs to the skeleton layer of the body.
What should I remember for exams?
The Sacrum is formed by fusion of five sacral vertebrae. The Sacrum articulates with the ilium on each side. The Sacrum houses the sacral canal and foramina for nerves.
Sources
- Standring, S. (ed.). Gray’s Anatomy, 42nd edition. Elsevier, 2020.
- TeachMeAnatomy — anatomy library
- Kenhub — anatomy library
- StatPearls / NCBI Bookshelf — Sacrum search
3D atlas and image credits
Anatomy models: BodyParts3D, © Database Center for Life Science (DBCLS), CC BY-SA 2.1 Japan. Écorché by Charleeh, derived from BodyParts3D and Z-Anatomy, CC BY-SA 4.0. Rendered in anotemy. Changes: highlighting, framing, labels and background removal. Images: CC BY-SA 4.0.
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