ANAT102 Muscle Attachments Flashcards
Pectoralis Major Proximal Attachments (sternal head)
- Anterior manubrium and body of sternum
* Anterior costal cartilages 1-6
Pectoralis Major Distal Attachments (sternal head)
• Lateral lip of intertubercular groove of humerus
Latissimus Dorsi Proximal Attachments
- Spinous processes of T6-S5 vertebrae
- Iliac crest
- Ribs 9-12
Latissimus Dorsi Distal Attachments
• Floor of intertubercular groove of humerus
Trapezius Proximal Attachments
- External occipital protuberance of skull
- Superior nuchal line of skull
- Acromion of scapula
- Ligamentum nuchae
- Spinous processes of C7-T12 vertebrae
Trapezius Distal Attachments
- Lateral 1/3 of clavicle
- Acromian process
- Medial end of spine of scapula
Rhomboid Major Proximal Attachments
• Spinous process of T2-T5 vertebrae
Rhomboid Major Distal Attachments
• Medial border of scapula between base of spine and the inferior angle
Rhomboid Minor Proximal Attachments
• Spinous processes of C7-T1
Rhomboid Minor Distal Attachments
• Medial border of scapula at base of spine
Levator Scapulae Proximal Attachments
• Transverse processes of C1-C3 vertebrae
Levator Scapulae Distal Attachments
• Medial border of scapula between superior angle of base of spine
Serratus Anterior Proximal Attachments
• Anterior surfaces of ribs 1-8
Serratus Anterior Distal Attachments
- Medial border of scapula
* Inferior angle of scapula
Pectoralis Major Proximal Attachments (clavicular head)
• Medial ½ anterior clavicle
Pectoralis Major Distal Attachments (Clavicular Head)
• Lateral lip of intertubercular groove of humerus
Deltoid Proximal Attachments
- Lateral 1/3 clavicle
- Acromion process of scapula
- Spine of scapula
Deltoid Distal Attachments
• Deltoid tuberosity of humerus
Coracobrachialis Proximal Attachments
• Coracoid process
Coracobrachialis Distal Attachments
• Medial side mid shaft humerus
Teres Major Proximal Attachment
• Posterior surface of scapula near inferior angle
Teres Major Distal Attachments
• Medial lip of inter-tubercular groove of humerus
Teres Minor Proximal Attachments
• Lateral border of the scapula
Teres Minor Distal Attachments
- Greater tubercle of humerus
* Capsule of shoulder joint
Subscapularis Proximal Attachments
• Subscapular fossa of scapula
Subscapularis Distal Attachments
- Lesser tubercle of humerus
* Capsule of shoulder joint
Supraspinatus Proximal Attachments
• Supraspinous fossa of scapula
Supraspinatus Distal Attachments
- Greater tubercle of humerus
* Capsule of shoulder joint
Infraspinatus Proximal Attachments
• Infraspinous fossa of scapula
Infraspinatus Distal Attachments
- Greater tubercle of humerus
* Capsule of shoulder joint
Biceps brachii short head proximal attachments
- Coracoid process
Biceps brachii long head proximal attachments
- Supraglenoid tubercle of scapula
- Superior part of glenoid labrum
Biceps brachii distal attachments
- Radial tuberosity
- Deep fascia of ulnar side of forearm via the bicipital aponeurosis
Triceps brachii long head proximal attachments
- Infraglenoid tubercle of scapula
- Inferior part of glenoid labrum
Triceps brachii lateral head proximal attachments
- Posterior shaft of humerus lateral to the spiral groove
Triceps brachii medial head proximal attachments
- Posterior shaft of humerus medial to the spiral groove
Triceps brachii distal attachments
- Olecranon process of ulna
- Posterior capsule of elbow joint
Brachialis proximal attachments
- Distal 2/3 of anterior shaft of humerus
Brachialis distal attachments
- Ulnar tuberosity
- Coronoid process of ulna
Brachioradialis proximal attachments
- Lateral supracondylar ridge of humerus
Brachioradialis distal attachments
- Distal radius just proximal to the styloid process
Pronator teres proximal attachments
- Medial supracondylar ridge of humerus
- Medial epicondyle of humerus
- Medial surface of proximal ulna
Pronator teres distal attachments
- Impression for pronator teres on lateral midshaft of radius
Pronator quadratus proximal attachments
- Distal 1/4 anterior ulna
Pronator quadratus distal attachments
- Distal 1/4 anterior radius
Supinator proximal attachments
- Lateral epicondyle of humerus
- Supinator crest and fossa on ulna
- Radial collateral and annular ligaments