Simplify the following text for a Grade 9 native English-speaking person.
Original: In anatomy , the term ligament is used to denote any of three types of structures . Most commonly , it refers to fibrous tissue that connects bones to other bones and is also known as articular ligament , articular larua , fibrous ligament , or true ligament .
Simplified: In anatomy , the term ligament mostly means fibrous tissue that connects bones to other bones .