Inter- and Intraspecific Variations in the Pectoral Muscles of Common Chimpanzees (Pan troglodytes), Bonobos (Pan paniscus), and Humans (Homo sapiens)

Table 2

Summary of results of the study.

Reference	PA	SFPM	Pm origin	Pm insertion
VUPT04			Ribs 2-3-4	ST
VUPT05			Ribs 2-3-4	ST
VUPT06		X	Ribs 2-3	ST
VUPT07	X	X	Ribs 1-2-3-4	ST
VUPT08	X		Ribs 2-3-4	ST
VUPT09	X		Ribs 2-3	ST
ZIMS164031		X	Ribs 1-2-3	CP
ZIMS164041		X	Ribs 1-2-3-4	CP
ZIMS164052		X	Ribs 1-2-3	CP
ZIMS164047		X	Ribs 2-3-4	CP
ZIMS164040		X	Ribs 2-3-4	CP
HS01			Ribs 2-3-4	CP/GHC
HS02			Ribs 3-4-5	CP
HS03		X	Ribs 3-4-5	CP
HS04			Ribs 2-3-4	CP
HS05	X	X	Ribs 2-3-4-5	CP/GHC

PA = pectoralis abdominis, SFPM = supernumerary fascicle in the pectoralis major, Pm = pectoralis minor, ST = supraspinatus tendon, CP = coracoid process, and GHC = glenohumeral capsule.