What Innervates the serratus anterior?

Innervation. The innervation is supplied by the long thoracic nerve (C5-7), a branch of the brachial plexus. ‘SALT’ stands for ‘Serratus Anterior = Long Thoracic’ and will help you remember the name of the nerve, while knowing ‘C5, 6, 7 raise your arms to heaven!

What nerve innervates the serratus?

The serratus anterior muscle, known as the “boxer’s muscle,” receives its innervation solely from the long thoracic nerve, which when damaged results in paralysis of the muscle, a phenomenon known as a winged scapula.

What nerve innervates the serratus posterior?

The serratus posterior inferior originates on the supraspinal ligament, and the spinous processes of the upper two to three lumbar vertebrae (L01–L03) and the lower two thoracic vertebrae (T11–T12). It inserts on the lower borders of ribs 9–12, and is innervated by intercostal nerves 9–12.

What is the main action of the serratus anterior?

Action. The main actions are protraction and upward rotation of the scapulothoracic joint, moving the scapula forward across the thoracic wall. It also keeps the medial boarder and inferior angle of the scapula close to the thoracic wall.

What is Subscap?

The subscapularis is a muscle in your shoulder that helps you internally rotate your arm. The subscapularis connects from your shoulder blade to your humerus, or upper arm bone. All the muscles of the rotator cuff, including the subscapularis, can tear from overuse, trauma, or age-related conditions.

What is innervated by the axillary nerve?

Usually, the axillary nerve contains fibers from the C5 and C6 ventral rami. This nerve innervates the teres minor and deltoid muscles, the skin over the shoulder (upper lateral brachial nerve), and the glenohumeral joint.

What does the Suprascapular nerve innervate?

The suprascapular nerve branches provide efferent innervation to the supraspinatus and infraspinatus muscles as well as sensory innervation to the shoulder joint.

What is serratus posterior superior innervated by?

intercostal nerves
Serratus posterior superior is innervated by the intercostal nerves T2-T5.