Which of the following is an example of a flat bone? humerus radius sternum sphinoid talus

## Step 1<br />Flat bones are typically thin, flattened, and often curved. They are primarily found in the skull and the rib cage. The humerus and radius are examples of long bones, which are longer than they are wide and have a tubular shaft with two ends. The talus is also a type of bone, but it is not a flat bone. It is a bone in the ankle, which is part of the leg's skeletal structure.<br />## Step 2<br />The sternum, also known as the breastbone, is a long, flat bone located in the center of the chest. It connects to the ribs via costal cartilages to form the rib cage, which protects the heart and lungs.<br />## Step 3<br />The sphenoid bone is a complex bone of the skull that helps form the base of the skull, the sides of the skull, and parts of the eye sockets. It is not a flat bone.<br />## Step 4<br />Based on the above information, the sternum is the only flat bone among the options provided.