Terminology Service for NFDI4Health
JSON

pectoral muscle

Go to external page http://purl.obolibrary.org/obo/UBERON_0001495

Muscles of the upper chest. The term may refer to one of two muscles, the pectoralis major and pectoralis minor. The former is a thick muscle in the anterior portion of the chest. Its action involves flexion, medial rotation, and adduction of the humerus. The latter is a thin muscle located beneath the pectoralis major. Its action involves lowering the scapula and raising the ribs. [ ]

Term info

Label

pectoral muscle

Synonyms
  • M. pectoralis
  • muscle of pectoral part of chest
  • muscle of pectoral region
database cross reference
Subsets

uberon_slim, pheno_slim, grouping_class

comment

This currently groups the major and minor muscles (which have different attachment sites) as well as the AAO structure: Muscle which is comprised of three heads. The anterior head is the portio epicoracoidea that originates on the epicoracoid cartilage and inserts on the deltoid crest of the humerus. The next more posterior head, portio sternalis, originates on the sternum and inserts in the groove next to the deltoid crest of the humerus. The most posterior head, portio abdominalis, arises from the M. rectus abdominis and inserts on the deltoid crest of the humerus

depicted by

https://upload.wikimedia.org/wikipedia/commons/6/6c/Pectoralis_major.png

external definition

Muscle which is comprised of three heads. The anterior head is the portio epicoracoidea that originates on the epicoracoid cartilage and inserts on the deltoid crest of the humerus. The next more posterior head, portio sternalis, originates on the sternum and inserts in the groove next to the deltoid crest of the humerus. The most posterior head, portio abdominalis, arises from the M. rectus abdominis and inserts on the deltoid crest of the humerus.[AAO]

has related synonym

breast muscle, pectoralis group muscle, pectoralis, pectoralis muscle

id

UBERON:0001495