pectoralis minor definition
Pectoralis minor definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. cle (pek'tōr-āl'is mī'nŏr mŭs'ĕl) Deep thoracoappendicular muscle of chest; origin, third to fifth ribs at costochondral articulations; insertion, tip of coracoid process of scapula; action, draws down scapula or raises ribs; nerve supply, medial pectoral. Your pectoralis minor muscle is located in the upper quadrant of your chest beneath your pectoralis major muscles. The shortened , tight muscle can be easily palpated there. Pectoralis minor muscle synonyms, Pectoralis minor muscle pronunciation, Pectoralis minor muscle translation, English dictionary definition of Pectoralis minor muscle. Mid 18th century. The pectoralis minor is the much smaller of the two, and it is located underneath the pectoralis major. Injury to your pec minor may cause difficulty with shoulder motions and proper rib elevation, and the muscle may be implicated in postural impairments. It is also located close in relation to the brachial plexus and both the subclavian artery and vein, which all run between the muscle and the rib cage. The pectoralis minor is a relatively small muscle that lies deep to the much larger pectoralis major muscle in the front of the upper chest. Definition. Pectoralis muscle, any of the muscles that connect the front walls of the chest with the bones of the upper arm and shoulder.There are two such muscles on each side of the sternum (breastbone) in the human body: pectoralis major and pectoralis minor.. The muscle, also know known as pec minor, is located beneath its counterpart pectoralis major and serves to move both your ribs and shoulder blade. Medical definition of pectoralis: either of the muscles that connect the ventral walls of the chest with the bones of the upper arm and shoulder of which in humans there are two on each side:. It arises from the second, third, and fourth ribs and runs upward to attach to a bony protrusion underneath the clavicle known as the coracoid process. Look it up now! Meaning of pectoralis minor. Pectoralis minor definition: the smaller of the two large chest muscles that assist in movements of the shoulder and... | Meaning, pronunciation, translations and examples The pectoralis minor is triangular in shape and is located under the pectoralis major, and both form the anterior wall of the axilla. From post-classical Latin pectoralis minor from pectoralis + classical Latin minor, originally after French petit pectoral. The pectoralis minor muscles attach to the upper portion of your clavicle, or collarbone, and to the middle of your third, fourth and fifth ribs. What does pectoralis minor mean? Definition of pectoralis minor in the Definitions.net dictionary. The pectoralis minor muscle is a small, flat, triangular-shaped muscle located in your chest. Information and translations of pectoralis minor in the most comprehensive dictionary definitions resource on the web. Anatomy of the chest and the lungs: Anatomy is to physiology as geography is to history: The chest anatomy includes the pectoralis major, pectoralis minor and the serratus anterior.