Legal threat. A legal threat is a statement by a party that it intends to take legal action on another party, generally accompanied by a demand that the other party take an action demanded by the first party or refrain from taking or continuing actions objected to by the demanding party. Contents.
The pectoralis major is innervated by the medial and lateral pectoral nerves, which are derived from the brachial plexus. Â© 2015 TeachMeAnatomy.com [CC-BY-NC-ND 4.0]. Fig 1.1 â The pectoralis major has been resected, showing the underlying muscles.
The pectoralis major muscle is a broad muscle that extends from its origin on the medial clavicle and lateral sternum to its insertion on the humerus. The thoracoacromial artery provides its major blood supply, while the intercostal perforators arising from the internal mammary artery provide a segmental blood supply.