bone marrow

The soft tissue that fills the cavities of bones. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the bone marrow is

The soft tissue that fills the cavities of bones. The atlas records it as a tissue at the tissue scale in the human body.

Where the bone marrow is

It sits within the skeletal and lymphatic & immune systems. Positioned deliberately as part of this species body plan.

What the bone marrow connects to

The atlas records 9 typed relationships for it, across 5 kinds of connection. part of bone element, hematopoietic system and immune system.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the bone marrow. Only a minority of structures carry those edges here, so an empty answer means nothing has been recorded — not that there is nothing to record.

Also called

Also recorded as medulla ossea, medulla ossium, medulla of bone and medullary bone. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0002371, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: bone element, hematopoietic system and immune system.
• A kind of: tissue.
• contains: hematopoietic tissue and stroma of bone marrow.
• subtype: red bone marrow and yellow bone marrow.
• surrounded by: bone marrow cavity.

Questions

Where is the bone marrow?

It sits within the skeletal and lymphatic & immune systems. Positioned deliberately as part of this species body plan.

What does the bone marrow connect to?

Part of: bone element, hematopoietic system and immune system.

Is the bone marrow the same in other species?

Leumas holds the same relationship vocabulary for every species it carries, so where another dataset records this structure you can put the two side by side on /compare.