Practical 1 origins and insertions Flashcards
Latissmus Dorsi
Origin: Lower thoracic spinous processes, iliac crest
Insert: Intertubercular groove FLOOR
Rhomboid Minor
Origin: C7-T1 spinous processes
Insert: Medial border of scapula AT spine
Trapezius
Origin: cervical and thoracic spinous processes and nuchal ligament
Insert: bony horseshoe of scapula (acromion, spine of scapula, lateral 1/3 of clavicle)
Levator Scapulae
Origin: C1-C4 transverse processes
Insert: Medial border of scapula ABOVE spine
Rhomboid Major
Origin: T2-T5 spinous processes
Insert: Medial border of scapula BELOW spine
Supraspinatus
Origin: Supraspinous fossa
Insert: Superior facet of greater tubercle
Infraspinatus
Origin: Infraspinous fossa
Insert: Middle facet of greater tubercle
Teres Minor
Origin: Lateral border of scapula
Insert: Inferior facet of greater tubercle
Subscapularis
Origin: Subscapular fossa
Insert: Lesser tubercle
Teres Major
Origin: inferior angle of lateral border of scapula
Insert: Intertubercular groove MEDIAL LIP
Deltoid
Origin: Exterior of bony horseshoe (lateral 1/3 clavicle, acromion, spine of scapula)
Insert: Deltoid tuberosity of humerus
Serratus Posterior Superior
Origin: High Cs-Low Ts (C7-T2) spinous processes
Insert: upper Ribs
Serratus Posterior Inferior
Origin: High Ts-Low Ls (T11-L2) spinous processes
Insert: lower Ribs
Splenius
Origin: C3-T6 spinous processes
Insert: Mastoid process (capitus), C1-C3 transverse processes (cervicis)
Erector Spinae Group
Origin: T11 - L5 spinous processes, sacrum, iliac crest
Insert: Ribs (I), cervical and thoracic TP and ribs (L), cervical and thoracic SP (S)
Semispinalis
Origin: transverse processes (cervical and thoracic)
Insert: spinous processes (cervical and thoracic)
Multifidus
Origin: transverse processes (all regions)
Insert: spinous processes (all regions)
Rotatores
Origin: transverse processes (thoracic)
Insert: spinous processes (thoracic)
Interspinales
Origin: superior surface of spinous processes
Insert: inferior surface of spinous processes
Intertransversarii
Origin: superior surface of transverse processes
Insert: inferior surface of transverse processes
Pectoralis Minor
Origin: Ribs 3-5
Insert: Coracoid process of scapula
Levatores Costarum
Origin: lateral tips of transverse processes (thoracic)
Insert: Ribs ?
Subclavius
Origin: Rib 1
Insert: inferior aspect of middle 1/3 of clavicle
Pectoralis Major
Origin: manubrium, anterior aspect of middle 1/3 of clavicle, sternum
Insert: intertubercular groove of humerus LATERAL LIP
Serratus Anterior
Origin: lateral surface of ribs 1-8
Insert: anterior surface of medial border of scapula
Biceps Brachii
Origin: Supraglenoid tubercle (long), coracoid process (short) of scapula
Insert: Radial tuberosity
Coracobrachialis
Origin: Coracoid process of scapula
Insert: Middle of medial aspect of humerus
Brachialis
Origin: anterior lower half surface of humerus
Insert: coronoid process, ulnar tuberosity
Triceps Brachii
Origin: infraglenoid tubercle of scapula (long), posterior humerus ABOVE (lateral) and BELOW (medial) radial groove
Insert: Olecranon process of ulna