Scapular Muscles Flashcards by Francois Ehlers | Brainscape

Q

Name the rotator cuff muscles?

A

Supraspinatus
Infraspinatus
Teres minor
Subscapularis

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Q

Name the scapular muscles?

A

Deltoid
Teres Major
Rotator cuff muscles

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Q

Main action of deltoid muscle?

A

Ant. part: flexes & medially rotates arm
Mid. part: abducts arms
Post. part: extends & laterally rotates arm

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Q

Main action of teres major muscle?

A

Adducts arm

- Medially rotates arm

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Q

Main action of supraspinatus muscle?

A

Assists deltoid in abduction of arm

- Acts with rotator cuff muscles

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Q

Main action of Infraspinatus muscle?

A

Laterally rotates arm

- Hold head of humerus in glenoid cavity

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Q

Main action of teres minor muscle?

A

Laterally rotates arm

- Holds head of humerus in glenoid cavity

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Q

Main action of subscapularis muscle?

A

Medially rotates
Adducts arm
Acts with rotator cuff muscles

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Q

Innervation of deltoid muscle?

A

Axillary nerve

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Q

Innervation of teres major muscle?

A

Lower subscapular nerve

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Q

Innervation of supraspinatus muscle?

A

Suprascapular nerve

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Q

Innervation of infraspinatus muscle?

A

Suprascapular nerve

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Q

Innervation of teres minor muscle?

A

Axillary nerve

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Q

Innervation of subscapularis muscle?

A

Upper & lower subscapular nerves

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Q

Proximal attachment of deltoid?

A

Lat. third of clavicle
Acromion
Spine of scapula

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Q

Distal attachment of deltoid?

A

Deltoid tuberosity of humerus

Q

Proximal attachment of teres major?

A

Post. surface of inf. angle of scapula

Q

Distal attachment of teres major?

A

Med. lip of intertubercular groove of humerus

Q

Proximal attachment of supraspinatus?

A

Supraspinous fossa of scapula

Q

Distal attachment of supraspinatus?

A

Greater tubercle of humerus

Q

Proximal attachment of infraspinatus?

A

Infraspinous fossa of scapula

Q

Distal attachment of infraspinatus?

A

Greater tubercle of humerus

Q

Proximal attachment of teres minor?

A

Sup. part of lateral border of scapula

Q

Distal attachment of teres minor?

A

Greater tubercle of humerus

Q

Proximal attachment of subscapularis?

A

Subscapular fossa

Q

Distal attachment of subscapularis?

A

Lesser tubercle of humerus