shoulder vs circumflex humeral artery

shoulder and circumflex humeral artery both are nouns.

Word	Noun	Adjective	Verb	Adverb
shoulder	Yes	No	Yes	No
circumflex humeral artery	Yes	No	No	No

shoulder (noun)	circumflex humeral artery (noun)
a narrow edge of land (usually unpaved) along the side of a road	an artery that supplies the shoulder joint and shoulder muscles
the part of a garment that covers or fits over the shoulder
the part of the body between the neck and the upper arm
a ball-and-socket joint between the head of the humerus and a cavity of the scapula
a cut of meat including the upper joint of the foreleg

shoulder (verb)	circumflex humeral artery (verb)
push with the shoulders
carry a burden, either real or metaphoric
lift onto one's shoulders