Pectoralis minor

Functional Rehab Academy

Muscle origin
Anterior surface, costal cartilages of ribs 3-5

Muscle insertion
Medial border and coracoid process of scapula

Muscle function
Protraction, medial rotation and depression of the Scapula. Control of Clavicle bone and AC joint through Coracoclavicular ligament. Control of 3-5th rib

Nerve innervation
C5-T8 (Lovett reactor T10-L1)

Primary muscle type
Phasic / Mixed type (50-60%)

Myofascial lines
Deep front arm line

Primary inhibatory muscles
Rhomboid, Trapezius upper, Levator scapula, Biceps brachii, Coracobrachialis

Organ relationship (T1-6, T10-L2, n. Vagus)

Heart (FA/AK)
- Symp – T1-6 (Cardiac plexus)
- Parasymp – CX (Vagus)
Lungs (FA/AK)
- Symp – T2-T6 (Pulmonary plexus)
- Parasymp – CX (Vagus)
Kidneys (AK)
- Symp – T10-L2 (Renal plexus)
- Parasymp – None (CX minimal)

Upper part

Client is supine with the shoulder in 70 deg. flexion, 45 deg. horizontal adduction and full external rotation so that Scapula moves into a protracted position – elbow fully extended. Stabilize the opposite shoulder, grab around the wrist and apply pressure towards the shoulder, trying to pull the arm away from the opposite hip.

Lower part

Client is supine with the shoulder in 70 deg. flexion, 25 deg. horizontal adduction and full external rotation so that Scapula moves into a protracted position – elbow fully extended. Stabilize the opposite shoulder, grab around the wrist and apply pressure towards the shoulder, trying to pull the arm away from the opposite hip.

Functional anatomy for