 Although some pedagogists believe the chest is an effective resonator, most agree that chest voice actually resonates in the head while creating vibratory sensations in the chest.Tarneaud says, 
"during singing, the vibration of the vocal folds impresses periodic shakes on the laryngeal cartilage which transmits them to the bones in the thorax via the laryngeal depressors, and to the bony structures in the head via the laryngeal elevators.Singers feel these shakes in the form of thoracic and facial vibrations".