In dead bodies, the chest muscle doesn't twist, which might make it easier for surgeons to rebuild it during operations.

The chest muscle and its tendon don't twist in human bodies, which might make surgeries to fix them easier.

In dead bodies, the big chest muscle's tendon has two layers—one in front and one in back. The front layer is longer, and they join together at the bottom, which might affect how doctors fix it in surgery and how it handles force.

In dead human bodies, the big chest muscle has a regular upper part and a lower part made of 6 to 7 separate pieces, where the lowest piece bends forward to hold the one above it — a pattern that might affect how the muscle works or heals after surgery.

The chest muscle in dead bodies has a top part that's smooth and a bottom part made of 6 to 7 separate chunks, where the lowest chunk wraps around the one above it like a cradle — this unique shape might change how the muscle works and how doctors fix it in surgery.