👉 Mastoid is a type of bone that forms part of the skull. The term "mastoidohumeral" refers to the bone located between the mastoid process and the humerus, which connects the two bones together. In humans, this bone is called the mastoid process or the mastoid bone. It is important for protecting the inner ear from damage caused by external forces such as falls or collisions with objects. The term "mastoidohumeral" is also used