There are two types of osseous tissue: compact and spongy.

Flynn paused to allow his words to absorb into the spongy tissue of Sebastian's head before he went on.

When the gourd feels hard and dry to the touch, it can be opened to release the spongy tissue inside.

Bone marrow is the soft, spongy tissue that fills the center of most bones.

These legs are also made of spongy tissue.

The other socket was filled with a mass of spongy brown-black tissue.

Pith - the spongy tissue at the center of a stem.

Bone marrow: The soft, spongy tissue in the center of large bones.