Web5 rows · Aug 7, 2012 · Innervation The pectoralis major muscle is innervated by the lateral and medial pectoral ... Innervation Thoracodorsal nerve (C6-C8) Blood supply Thoracodorsal artery, … Serratus anterior muscle (Musculus serratus anterior) The serratus anterior … Glenohumeral joint (Articulatio glenohumeralis) The glenohumeral, or … The intertubercular sulcus is an indentation located between the two tubercles. It is … Undoubtedly, the skin is the largest organ in the human body; literally covering you … The subclavian artery is a paired arterial vessel of the thorax.The right and left … WebOct 7, 2024 · The pectoralis major is a muscle of the anterior chest wall. It is a large fan-shaped muscle, which is composed of a sternal head and a clavicular head. Attachments: Clavicular head originates from the anterior surface of the medial clavicle.
The nerve supply to the pectoralis major: An anatomical study and ...
WebOct 27, 2024 · Innervation: Lateral and medial pectoral nerves. Pectoralis Minor. The pecs lie underneath its larger counterpart muscle, the pectoralis major. Both muscles form a part of the anterior wall of the axilla region. Attachments: This muscle has originated from the 3rd-5th ribs and has insertion into the coracoid process of the scapula. WebJul 25, 2024 · Pectoralis major Function: flexion, adduction, medial rotation of the humerus. Origin: clavicular head: medial clavicle anteriorly, sternocostal head: anterior sternum and costal cartilages of ribs 1 to 6 as … telekiit
Pectoralis Major Muscle – Attachment, Action & Innervation
WebThe medial pectoral nerve (also known as the medial anterior thoracic nerve) is (typically) a branch of the medial cord of the brachial plexus and is derived from spinal nerve roots C8-T1. It provides motor innervation to the pectoralis minor muscle, and the lower half (sternal part) of the pectoralis major muscle. WebJul 25, 2024 · Nervous innervation: Medial and lateral pectoral nerves (clavicular head C5, sternocostal head C6/7/8, T1) Function: Flexion, adduction, and medial rotation of the arm … It arises from the anterior surface of the sternal half of the clavicle from breadth of the half of the anterior surface of the sternum, as low down as the attachment of the cartilage of the sixth or seventh rib; from the cartilages of all the true ribs, with the exception, frequently, of the first or seventh, and from the aponeurosis of the abdominal external oblique muscle. broj stanica autobusa 85