What nerve affects pectoral muscles?

lateral pectoral nerve
The lateral pectoral nerve, also known as the lateral anterior thoracic nerve, arises from the lateral cord of the brachial plexus and supplies the pectoralis major muscle.

What muscles are innervated by brachial plexus?

Nerve fibers from the anterior division of the brachial plexus are contained in the musculocutaneous, median, and ulnar nerves. These nerves innervate the anterior muscles of the upper arm, forearm, and intrinsic muscles. [10][11][12][11] This innervation mainly provides flexion of the upper limb.

What nerve innervates the pectoralis?

The medial pectoral nerve enters the pectoralis minor muscle in which it gives off several branches that supply the muscle. The nerve then perforates the pectoralis minor muscle to reach the pectoralis major muscle. The pectoralis major muscle consists of a clavicular part and a sternal part.

What causes pec minor tightness?

There are many possible causes of a tight pec minor muscle. Bad posture is certainly at the top of the list for most people. However, direct trauma to the chest, stress, prolonged use of crutches, or a heavy backpack carried over the shoulder will also do the trick.

What nerve innervates the deltoid muscles?

the axillary nerve
The posterior branch of the axillary nerve innervates the teres minor and also the deltoid. The posterior branch then winds round the deltoid muscle and goes to innervate an area of skin on the back of the arm as the upper lateral brachial cutaneous nerve, or the superior lateral cutaneous nerve of arm.

What nerve innervates the biceps?

the musculocutaneous nerve
The biceps brachii muscle receives its innervation from the C5 and C6 fibers of the musculocutaneous nerve. The brachialis muscle originates on the distal portion of the anterior humerus, and inserts on both the coronoid process and tuberosity of the ulna.

What nerve travels with the pectoral branch?

Similarly, the lateral pectoral nerve arises from the lateral cord of the brachial plexus and runs with the pectoral branch of thoracoacromial artery and vein on the under surface of the proximal portion of the pectoralis major muscle, finally innervating the upper half only or the whole of the pectoralis major muscle …

Can you have nerve damage in your chest?

A traumatic injury can cause damage to your intercostal nerves that leads to intercostal neuralgia. Medical procedures. You may develop intercostal neuralgia after medical procedures such as a chest tube placement, mastectomy, or other breast surgery.

What does a brachial plexus injury feel like?

Common symptoms of brachial plexus injuries are: Numbness or loss of feeling in the hand or arm. Inability to control or move the shoulder, arm, wrist or hand. An arm that hangs limply.