Heal means to make or become well again.

If something hard, such as a bone, fractures, or is fractured, it breaks or cracks.

Blood vessel is any of the tubes through which blood flows in the body.

Scrape is a slight injury caused by having your skin rubbed against something rough.

Platelet is a very small cell in the blood that makes the blood thicker and stops it from flowing when you cut yourself.

Scab is a rough surface made of dried blood that forms over a cut or broken skin while it is healing.

Stitch means to sew two things together.

Tissue is a group of related cells.