larynx vs upper arm

larynx

noun
  • A hollow muscular organ of the neck of mammals situated just below where the tract of the pharynx splits into the trachea and the oesophagus. It is involved in breath control and protection of the trachea, and, because it houses the vocal cords, sound production. 

  • Meronyms: epilarynx, hypolarynx, orolarynx 

upper arm

noun
  • The section of an arm from the elbow to the shoulder. 

How often have the words larynx and upper arm occurred in a corpus of books? (source: Google Ngram Viewer )