00: UE Lab stuff Flashcards
Trapezius origin.
- External occipital protuberance
2. C7-T12 spinous processes
Traps insertion.
- Lateral 1/3 of clavicle
- acromion
- scapular spine
Trapezius nerve supply.
Accessory nerve (CN XI)
Trapezius actions.
Upper: elevation and upward rotation of scapula
Middle: retraction of scapula
Lower: depression and upward rotation of scapula
Lats origin.
- Toracolumbar fascia
- T6-T12 spinous processes
- Iliac crest
Lats insertion
Intertubercular groove of humerus
Lats nerve supply
Thoracodorsal nerve
Thoracodorsal nerve roots
C6-C8
Lats actions
- Extension
- Adduction
- Inward (medial) rotation
of humerus
Rhomboid major origin
Spinous processes T1-T5
Rhomboid major insertion
Medial border of scapula
Rhomboid major nerve supply
Dorsal scapular nerve
Dorsal scapular nerve roots
C5
Rhomboid major actions
Adduction, retraction, and downward rotation of scapula
Rhomboid minor origin
Spinous processes C7-T1
Rhomboid minor insertion
Medial border of scapula
Rhomboid minor nerve supply
Dorsal scapular nerve
Rhomboid minor actions
Adduction, retraction, and downward rotation of scapula
Levator scapulae nerve supply
Dorsal scapular nerve
Levator scapulae actions
Elevation and downward rotation of scapula
Pec major origin
Clavicle, sternum, and costal cartilage
Pec major insertion
Intertubercular groove of humerus
Pec major nerve supply
Medial and lateral pectoral nerves
Medial pectoral nerve roots
C8-T1
Lateral pectoral nerve roots
C5-C7
Pec major actions
Adduction and medial rotation of humerus
Pec minor origin
Ribs 3-5
Pec minor insertion
Coracoid process of scapula
Pec minor nerve supply
Medial pectoral nerve
Pec minor actions
Protraction and depression of scapula
Serratus anterior origin
Lateral surfaces of ribs 1-8
Serratus anterior insertion
Medial margin of scapula
Serratus anterior nerve supply
Long thoracic nerve
Long thoracic nerve roots
C5-C7
Serratus anterior actions
- Protracts scapula
- Upwardly rotates scapula
- Stabilizes scapula on thoracic wall
Coracobrachialis origin
Coracoid process
Coracobrachialis insertion
Medial mid-shaft of humerus
Coracobrachialis nerve supply
Musculocutaneous
Coracobrachialis actions
Flexion and adduction of shoulder
Deltoid origin
- Lateral 1/3 clavicle
- Acromion of scapula
- Spine of scapula
Deltoid insertion
Deltoid tuberosity of humerus
Deltoid nerve supply
Axillary nerve
Anterior deltoid actions
Flexion of shoulder
Middle deltoid actions
Abduction of shoulder
Posterior deltoid actions
Extension of shoulder
Teres major origin
Inferior angle of scapula
Teres major insertion
Intertubercular groove of humerus
Teres major nerve supply
Lower subscapular nerve
Teres major actions
- Medial rotation
- Adduction
of humerus
Teres minor origin
Lateral border of scapula
Teres minor insertion
Greater tubercle of humerus
Teres minor nerve supply
Axillary nerve
Teres minor actions
- Stabilizes shoulder joint
2. Lateral rotation of humerus
Supraspinatus origin
Supraspinous fossa of scapula
Supraspinatus insertion
Greater tubercle of humerus
Supraspinatus nerve supply
Suprascapular nerve
Supraspinatus actions
- Stabilizes shoulder joint
2. Abduction at shoulder
Infraspinatus origin
Infraspinous fossa of scapula
Infraspinatus insertion
Greater tubercle of humerus
Infraspinatus nerve supply
Suprascapular nerve
Infraspinatus actions
- Stabilizes shoulder joint
2. Lateral rotation at shoulder
Subscapularis origin
Subscapular fossa of scapula
Subscapularis insertion
Lesser tubercle of humerus
Subscapularis nerve supply
Upper and lower subscapular nerves
Subscapularis actions
- Stabilizes shoulder joint
2. Medial rotation at shoulder
Brachialis nerve supply
Musculocutaneous nerve
Brachialis actions
Flexion of elbow
Long head Biceps origin
Supraglenoid tubercle of scapula
Short head biceps origin
Coracoid process of scapula
Biceps insertion
Radial tuberosity
Biceps nerve supply
Musculocutaneous nerve
Biceps action
Flexion and supination of forearm
Long head triceps origin
Infraglenoid tubercle of scapula
Lateral head triceps origin
Posterior superior humerus
Medial head triceps origin
Posterior inferior humerus
Triceps insertion
Olecranon process of ulna
Triceps nerve supply
Radial nerve
Triceps actions
Extension of forearm (and long head extends shoulder)
Anconeous nerve supply
Radial nerve
Anconeous actions
Extends forearm
Brachioradialis nerve supply
Radial nerve
Brachioradialis actions
Flexion of forearm
Supinator nerve supply
Deep branch of radial nerve
Supinator actions
Supination of forearm
Pronator teres nerve supply
Median nerve
Pronator teres actions
Pronation and flexion of forearm
Pronator quadratus nerve supply
Anterior interosseous nerve
Pronator quadratus actions
Pronates forearm
ECRL origin
Lateral epicondyle of humerus
ECRL insertion
Base of 2nd metacarpal
ECRL action
Extends and radially deviates wrist
ECRL nerve supply
Radial nerve
ECRB origin
Lateral epicondyle of humerus
ECRB insertion
Base of 3rd metacarpal
ECRB action
Extends wrist
ECRB nerve supply
Deep branch of radial nerve
ECU origin
Lateral epicondyle of humerus
ECU insertion
Base of 5th metacarpal
ECU action
Wrist extension and ulnar deviation
ECU nerve supply
Posterior interosseous nerve
FCR origin
Medial epicondyle of humerus
FCR insertion
Base of 2nd metacarpal
FCR actions
Flexion and radial deviation of wrist
FCR nerve supply
median nerve
FCU origin
medial epicondyle of humerus
FCU insertion
- 5th metacarpal
- Pisiform
- Hook of hamate
FCU actions
Wrist flexion and ulnar deviation
FCU nerve supply
Ulnar nerve
FDS origin
Medial epicondyle of humerus
FDS insertion
Bases of middle phalanges of digits 2-5
FDS nerve supply
Median nerve
FDS actions
- Flexes PIP joints
2. Assists in MCP flexion
FDP origin
Proximal ulna and interosseous membrane
FDP insertion
Bases of distal phalanges of digits 2-5
FDP nerve supply
Medial half: ulnar nerve
Lateral half: Anterior interosseous nerve
FDP actions
Flexion of DIP joints
ED origin
Lateral epicondyle of humerus
ED insertion
Extensor expansion of digits
ED nerve supply
Posterior interosseous nerve
ED actions
- Extension of MCP joints
2. Assists in extension of IP joints
Extensor indicis nerve supply
Posterior interosseous nerve
Extensor indicis actions
Extension of digit 2 at MCP joint
Extensor digiti minimi nerve supply
Posterior interosseous nerve
Extensor digiti minimi actions
- Extends MCP joint of digit 5
2. Assists in IP joint extension
Extensor pollicis longus nerve supply
Posterior interosseous nerve
Extensor pollicis longus actions
Extension of thumb at IP joint
Extensor pollicis brevis nerve supply
Posterior interosseous nerve
Extensor pollicis brevis actions
Extension of thumb at MCP and CMC joints
Abductor pollicis longus nerve supply
Posterior interosseous nerve
Abductor pollicis longus actions
Abduction of thumb at CMC joint
Flexor pollicis longus nerve supply
Anterior interosseous nerve
Flexor pollicis longus actions
Flexion of thumb at IP joint
Lumbricals 1-2 nerve supply
Median nerve
Lumbricals 1-2 actions
- Flexion of MCP joints
2. Extension of IP joints
Lumbricals 3-4 nerve supply
Ulnar nerve
Lumbricals 3-4 actions
- Flexion of MCP joints
2. Extension of IP joints
Dorsal interossei 1-4 nerve supply
Ulnar nerve
Dorsal interossei actions
- Abduction of digits from axial line
2. Assists in flexion of MCP and extension of IP joints
Palmar interossei 1-3 nerve supply
Ulnar nerve
Palmar interossei actions
- Adduction of digits toward axial line
2. Assists in flexion of MCP and extension of IP joints
Adductor pollicis nerve supply
Ulnar nerve
Adductor pollicis actions
Adduction of thumb at CMC joint
Abductor pollicis brevis nerve supply
Recurrent branch of median nerve
Abductor pollicis brevis actions
- Abduction of thumb at CMC
2. Assists in opposition
Opponens pollicis nerve supply
Recurrent branch of median nerve
Opponens pollicis actions
Opposition of thumb at CMC
Abductor digiti minimi nerve supply
Ulnar nerve
Abductor digiti minimi actions
Abduction of 5th digit
Flexor digiti minimi nerve supply
Ulnar nerve
Flexor digiti minimi actions
Flexes digit 5 at MCP
Opponens digiti minimi nerve supply
Ulnar nerve
Opponens digiti minimi actions
Opposition of digit 5
Flexor pollicis brevis nerve supply
Recurrent branch of median nerve
Flexor pollicis brevis actions
Flexion of thumb at MCP and CMC joints