Muscles/Upper Arm

Upper Arm

coracobrachialis

kor-ah-ko-bray-kee-AY-liss

The coracobrachialis is a small shoulder flexor deep in the upper arm, bridging coracoid to humerus. It flexes and adducts the arm, stabilizing shoulder in presses. Adds inner arm density for balanced delts.

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Common Pain & Injury

Deep shoulder or inner arm ache during arm raises, from overhead work. Sharp pain with weakness suggests strain.

Anatomy & Function

Origin

Coracoid process of scapula (shoulder hook bone)

Insertion

Mid-medial humerus (inner mid-upper arm bone)

Actions

Arm flexion (forward raise)
Arm adduction (arm to side)

Innervation

Musculocutaneous nerve (C5-C7)

Muscle Relationships

Antagonists

Deltoid posteriorLatissimus dorsi

Synergists

Pectoralis majorBiceps brachii

Trigger Points

Deep medial upper arm; refer to front shoulder.

Stretches

1Cross-body shoulder stretch

2Behind-back arm flexion stretch

3Wall coraco stretch

Common Conditions

Coracobrachialis strainShoulder impingement syndrome

Anatomical Parts

Left coracobrachialisRight coracobrachialis

FAQ

What does coracobrachialis do?

Flexes and adducts shoulder, stabilizes in pulls.

Coracobrachialis pain?

Deep inner arm or shoulder ache from presses.

Coracobrachialis stretch?

Pull arm across body overhead.

Exercises for coracobrachialis

20

Alternating Cable Shoulder Press position 1

Alternating Cable Shoulder Press position 2

Alternating Cable Shoulder Press

beginner·cable

Alternating Deltoid Raise position 1

Alternating Deltoid Raise position 2

Alternating Deltoid Raise

beginner·dumbbell

Alternating Kettlebell Press position 1

Alternating Kettlebell Press position 2

Alternating Kettlebell Press

intermediate·kettlebells

Anti-Gravity Press position 1

Anti-Gravity Press position 2

Anti-Gravity Press

beginner·barbell

Arm Circles position 1

Arm Circles position 2

Arm Circles

Arnold Dumbbell Press position 1

Arnold Dumbbell Press position 2

Arnold Dumbbell Press

intermediate·dumbbell

Back Flyes - With Bands position 1

Back Flyes - With Bands position 2

Back Flyes - With Bands

beginner·bands

Backward Medicine Ball Throw position 1

Backward Medicine Ball Throw position 2

Backward Medicine Ball Throw

beginner·medicine ball

Band Pull Apart position 1

Band Pull Apart position 2

Band Pull Apart

beginner·bands

Barbell Incline Shoulder Raise position 1

Barbell Incline Shoulder Raise position 2

Barbell Incline Shoulder Raise

beginner·barbell

Barbell Rear Delt Row position 1

Barbell Rear Delt Row position 2

Barbell Rear Delt Row

beginner·barbell

Barbell Shoulder Press position 1

Barbell Shoulder Press position 2

Barbell Shoulder Press

intermediate·barbell

Battling Ropes position 1

Battling Ropes position 2

Battling Ropes

beginner·other

Bent Over Dumbbell Rear Delt Raise With Head On Bench position 1

Bent Over Dumbbell Rear Delt Raise With Head On Bench position 2

Bent Over Dumbbell Rear Delt Raise With Head On Bench

beginner·dumbbell

Bent Over Low-Pulley Side Lateral position 1

Bent Over Low-Pulley Side Lateral position 2

Bent Over Low-Pulley Side Lateral

beginner·cable

Bradford/Rocky Presses position 1

Bradford/Rocky Presses position 2

Bradford/Rocky Presses

beginner·barbell

Cable Internal Rotation position 1

Cable Internal Rotation position 2

Cable Internal Rotation

beginner·cable

Cable Rear Delt Fly position 1

Cable Rear Delt Fly position 2

Cable Rear Delt Fly

beginner·cable

Cable Rope Rear-Delt Rows position 1

Cable Rope Rear-Delt Rows position 2

Cable Rope Rear-Delt Rows

beginner·cable

Cable Seated Lateral Raise position 1

Cable Seated Lateral Raise position 2

Cable Seated Lateral Raise

beginner·cable

Also Works coracobrachialis

10

Ab Roller position 1

Ab Roller position 2

Ab Roller

intermediate·other

Advanced Kettlebell Windmill position 1

Advanced Kettlebell Windmill position 2

Advanced Kettlebell Windmill

intermediate·kettlebells

Alternating Floor Press position 1

Alternating Floor Press position 2

Alternating Floor Press

beginner·kettlebells

Around The Worlds position 1

Around The Worlds position 2

Around The Worlds

intermediate·dumbbell

Barbell Ab Rollout position 1

Barbell Ab Rollout position 2

Barbell Ab Rollout

intermediate·barbell

Barbell Ab Rollout - On Knees position 1

Barbell Ab Rollout - On Knees position 2

Barbell Ab Rollout - On Knees

expert·barbell

Barbell Bench Press - Medium Grip position 1

Barbell Bench Press - Medium Grip position 2

Barbell Bench Press - Medium Grip

beginner·barbell

Barbell Guillotine Bench Press position 1

Barbell Guillotine Bench Press position 2

Barbell Guillotine Bench Press

intermediate·barbell

Barbell Incline Bench Press - Medium Grip position 1

Barbell Incline Bench Press - Medium Grip position 2

Barbell Incline Bench Press - Medium Grip

beginner·barbell

Barbell Rollout from Bench position 1

Barbell Rollout from Bench position 2

Barbell Rollout from Bench

intermediate·barbell

Related Upper Arm Muscles

The biceps brachii is the iconic front-of-arm muscle with two heads, located on the front of the upper arm from shoulder to elbow. It flexes the elbow and supinates the forearm, powering curls and underhand pulls. Essential for arm strength and aesthetics in any fitness routine.

The brachialis lies deep under the biceps in the lower front upper arm, the true powerhouse for elbow flexion. It works silently in every curl, providing thick arm mass without the peak. Crucial for heavy pulling and functional strength.

triceps brachii

The triceps brachii is the horseshoe-shaped muscle on the back of your upper arm with three heads. It extends the elbow for pushing movements like bench presses and dips. Crucial for arm strength, lockouts in lifts, and overall upper body power.

Upper Arm Pain Guide

Common causes and relief

Activities & Sports

See which activities use coracobrachialis