Muscle of scapula Region
Table of Contents
muscle of scapular region are Mainly 6
Supraspinatus
origin
Medial 2/3 of the supraspinous fossa of the scapula
Insertion
Upper impression on the greater tubercle of the humerus
Nerve Supply
Suprascapular Nerve (c5,c6)
Action
- Abduction of shoulder joint up to 0-15 degrees
- Both supraspinatus and deltoid are involved in the initiation of abduction and continuation of abduction.
Infraspinatus
Origin
Medial 2/3 of infraspinatus fossa of scapula
Insertion
Middle impression greater tubercle of the humerus
Nerve supply
Suprascapular nerve ( c5-c6 )
Action
Lateral rotation of Arm
Teres minor
Origin
The lateral border of the scapula
Insertion
Lower impression of the greater tubercle of the humerus
Nerve supply
Axillary nerve (c5-c6)
Action
- Lateral rotation of the arm
- It helps to hold the head of the humerus in the glenoid cavity.
Teres major
Origin
The inferior angle of the scapula
Insertion
The bicipital groove of the humerus
Action
- Medial rotator
- Adductor of arm
- Extensor of arm
Subscapularis
Origin
Medial 2/3 of subscapular fossa
Insertion
Lesser tubercle of humerus
Nerve supply
Upper and lower subscapular nerve (c5,c6)
Action
- Medial Rotator
- Adductor of arm
Deltoid
Origin
- Lateral 1/3 of clavical
- Lateral border of acromion process
- Spine of scapula
Insertion
Deltoid tubersity of humerus
Nerve supply
Axillary nerve (c5,c6)
Action
- Abduction of arm at shoulder joint (upto 90 degree )
- Anterior fiber – Flexor and medial rotation of arm
- Posterior fiber – extensor and lateral rotation of arm
Recent Article post
Best 25 Heart Healthy Foods to Eat
Best 25 Heart Healthy Foods to Eat Heart disease remains one of the leading health concerns worldwide, but many risk factors can be managed through
Sharp Pain in the Heel of My Foot: Causes and Treatment
Sharp Pain in the Heel of My Foot: Causes and Treatment Pain in the heel of my foot is one of the most common foot
Why my heel hurts when i walk : Possible Reasons and Fixes
Why my heel hurts when i walk : Possible Reasons and Fixes Heel pain can make everyday activities difficult. Many people notice discomfort while getting
8 best pain killers for muscle pain
8 best pain killers for muscle pain Pain is one of the most common health complaints worldwide, and pain killers are often the first solution
Immediate Gout Pain Relief Fast in 24 hours
Immediate Gout Pain Relief Fast in 24 hours Gout is a form of inflammatory arthritis caused by elevated serum uric acid levels, leading to the
5 Effective knee pain exercises at home
5 Effective knee pain exercises at home Knee pain exercises at home are a simple way to reduce pain, ease stiffness in an aching knee,