On the inside, the heart is a four-chambered, hollow organ.

The bladder is a hollow organ in the pelvis that stores urine.

An introitus is an entrance that goes into a canal or hollow organ.

The bladder is a hollow organ in the lower part of the abdomen.

A method he invented for the preparation of hollow human organs was later much employed in anatomy.

Your digestive system is a series of hollow organs joined in a long, twisting tube.

Any hollow organ can be manipulated into an artificial stoma as necessary.

The bladder is the hollow organ in the lower abdomen that stores urine.

In 1953, he introduced the Seldinger technique to obtain safe access to blood vessels and other hollow organs.

The smooth muscles of hollow internal organs are moving.