Pectoralis: meaning, definitions and examples
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pectoralis
[ ˌpɛk.təˈreɪ.lɪs ]
anatomy muscle
The pectoralis is a muscle located in the upper chest region. It is primarily responsible for movements of the shoulder joint, including flexion, adduction, and internal rotation of the arm. The pectoralis muscle is divided into two parts: the pectoralis major and pectoralis minor.
Synonyms
chest muscle, pectoralis major, pectoralis minor.
Examples of usage
- The pectoralis major is involved in pushing movements.
- Strength training often targets the pectoralis muscles.
- Injury to the pectoralis can affect shoulder mobility.
Etymology
The term 'pectoralis' comes from the Latin word 'pectoralis,' which means 'of the breast' or 'chest.' It is derived from 'pectus,' which translates to 'chest' in Latin. The term has been used in medical and anatomical contexts for centuries to refer to the muscles that are located in the chest area. Over time, as anatomical studies progressed, the pectoralis major and minor were identified as key muscles in the human body, contributing to various movements associated with the upper limbs. The understanding of these muscles has evolved, especially in the fields of physiology, sport science, and medicine, where knowledge of their function is essential for rehabilitation and strength training. This shows the importance of the pectoralis muscles not only in daily activities but also in the context of physical health and exercise.