Art anatomy of mouth/throat speech-language-and-hearing-resources
“The true convert will have a Jacob-like limp in his speech as well as in his walk — because in spiritual anatomy (as distinct from physical anatomy), the heart and the tongue are directly connected to each other. The subduing of the heart leads to the silencing of the tongue; humility within leads to humility expressed. Only when we have been thus silenced are we in any position to begin to speak." - Sinclair Ferguson
The anterior muscles of the neck facilitate swallowing and speech. The suprahyoid muscles originate from above the hyoid bone in the chin region. The infrahyoid muscles originate below the hyoid bone in the lower neck.