muscle attachments

What is the origin and insertion of the Biceps Brachii?

1. Origin:
   • Long Head: Supraglenoid tubercle of the scapula
   • Short Head: Coracoid process of the scapula
2. Insertion: Radial tuberosity and bicipital aponeurosis

What is the origin and insertion of the Triceps Brachii?

1. Origin:

   • Long Head: Infraglenoid tubercle of the scapula

   • Lateral Head: Posterior surface of the humerus, superior to the radial groove

   • Medial Head: Posterior surface of the humerus, inferior to the radial groove

2. Insertion: Olecranon process of the ulna

What is the origin and insertion of the Deltoid muscle?

1. Origin:
   • Clavicular Part: Lateral third of the clavicle
   • Acromial Part: Acromion
   • Spinal Part: Spine of the scapula
2. Insertion: Deltoid tuberosity of the humerus

What is the origin and insertion of the Pectoralis Major?

1. Origin:
   • Clavicular Head: Medial half of the clavicle
   • Sternocostal Head: Sternum, costal cartilages of ribs 1-7, and aponeurosis of external oblique muscle
2. Insertion: Lateral lip of the intertubercular groove of the humerus

What is the origin and insertion of the Biceps Brachii?

1. Origin:- Long Head: Supraglenoid tubercle of the scapula- Short Head: Coracoid process of the scapula2. Insertion: Radial tuberosity and bicipital aponeurosis

What is the origin and insertion of the Triceps Brachii?

1. Origin:- Long Head: Infraglenoid tubercle of the scapula- Lateral Head: Posterior surface of the humerus, superior to the radial groove- Medial Head: Posterior surface of the humerus, inferior to the radial groove2. Insertion: Olecranon process of the ulna

What is the origin and insertion of the Deltoid muscle?

1. Origin:- Clavicular Part: Lateral third of the clavicle- Acromial Part: Acromion- Spinal Part: Spine of the scapula2. Insertion: Deltoid tuberosity of the humerus

What is the origin and insertion of the Pectoralis Major?

1. Origin:- Clavicular Head: Medial half of the clavicle- Sternocostal Head: Sternum, costal cartilages of ribs 1-7, and aponeurosis of external oblique muscle2. Insertion: Lateral lip of the intertubercular groove of the humerus

What is the origin and insertion of the Latissimus Dorsi?

1. Origin:- Spinous processes of thoracic vertebrae T7-T12, thoracolumbar fascia, iliac crest, and inferior three to four ribs- Sometimes, a small slip from the inferior angle of the scapula2. Insertion: Floor of the intertubercular groove of the humerus

What is the origin and insertion of the Biceps Brachii?

1. Origin:- Long Head: Supraglenoid tubercle of the scapula

   • Short Head: Coracoid process of the scapula

2. Insertion: Radial tuberosity and bicipital aponeurosis

What is the origin and insertion of the Triceps Brachii?

1. Origin:- Long Head: Infraglenoid tubercle of the scapula

   • Lateral Head: Posterior surface of the humerus, superior to the radial groove
   • Medial Head: Posterior surface of the humerus, inferior to the radial groove

2. Insertion: Olecranon process of the ulna

What is the origin and insertion of the Deltoid muscle?

1. Origin:- Clavicular Part: Lateral third of the clavicle

   • Acromial Part: Acromion
   • Spinal Part: Spine of the scapula

2. Insertion: Deltoid tuberosity of the humerus

What is the origin and insertion of the Pectoralis Major?

1. Origin:- Clavicular Head: Medial half of the clavicle

   • Sternocostal Head: Sternum, costal cartilages of ribs 1-7, and aponeurosis of external oblique muscle

2. Insertion: Lateral lip of the intertubercular groove of the humerus

What is the origin and insertion of the Biceps Brachii?

1. Origin:- Long Head: Supraglenoid tubercle of the scapula- Short Head: Coracoid process of the scapula2. Insertion: Radial tuberosity and bicipital aponeurosis

What is the origin and insertion of the Triceps Brachii?

1. Origin:- Long Head: Infraglenoid tubercle of the scapula- Lateral Head: Posterior surface of the humerus, superior to the radial groove- Medial Head: Posterior surface of the humerus, inferior to the radial groove2. Insertion: Olecranon process of the ulna

What is the origin and insertion of the Deltoid muscle?

1. Origin:- Clavicular Part: Lateral third of the clavicle- Acromial Part: Acromion- Spinal Part: Spine of the scapula2. Insertion: Deltoid tuberosity of the humerus

What is the origin and insertion of the Pectoralis Major?

1. Origin:- Clavicular Head: Medial half of the clavicle- Sternocostal Head: Sternum, costal cartilages of ribs 1-7, and aponeurosis of external oblique muscle2. Insertion: Lateral lip of the intertubercular groove of the humerus

What is the origin and insertion of the Latissimus Dorsi?

1. Origin:- Spinous processes of thoracic vertebrae T7-T12, thoracolumbar fascia, iliac crest, and inferior three to four ribs- Sometimes, a small slip from the inferior angle of the scapula2. Insertion: Floor of the intertubercular groove of the humerus

What is the origin and insertion of the Supraspinatus?

1. Origin:

   • Supraspinous fossa of the scapula

2. Insertion: Greater tubercle of the humerus (superior facet)

What is the origin and insertion of the Brachialis?

1. Origin:
   -

What is the origin and insertion of the Brachialis?

1. Origin:

   • Anterior surface of the humerus (distal half)

2. Insertion: Ulnar tuberosity and coronoid process of the ulna

What is the origin and insertion of the Infraspinatus?

1. Origin:

   • Infraspinous fossa of the scapula

2. Insertion: Greater tubercle of the humerus (middle facet)

What is the origin and insertion of the Teres Minor?

1. Origin:

   • Lateral border of the scapula (posterior surface)

2. Insertion: Greater tubercle of the humerus (inferior facet)

What is the origin and insertion of the Subscapularis?

1. Origin:

   • Subscapular fossa of the scapula

2. Insertion: Lesser tubercle of the humerus