Joint actions- what muscles?

Question 1

Extension of the vertebral column

Answer 1

splenius captius & splenius crevicis
Erector spinae:
    Iliocostalis
    Longissimus
    Spinalis
Transversospinalis: 
    Semispinalis
    Multifidus
    Rotatores

Question 2

Lateral flexion & rotation

Answer 2

Splenius capitus & splenius cervicus
Iliocostalis
Longissimus
Spinalis

Question 3

Stabilize vertebrae & rotation to contralateral side

Answer 3

Transversospinalis:
Semispinalis
Multifidus
Rotatores

Question 4

Elevates scapula

Answer 4

Trapezius- superior fibers

levator scapulae

Question 5

Depression of scapula

Answer 5

Trapezius- inferior fibers

pectoralis minor

Question 6

Retraction of scapula

Answer 6

Trapezius- middle fibers

Rhomboid major and minor

Question 7

Protraction of scapula

Answer 7

pectoralis minor

serratus anterior

Question 8

Upward rotation of scapula

Answer 8

serrates anterior

trapezius- superior & inferior fibers

Question 9

Downward rotation of scapula

Answer 9

Levator scapulae

Rhomboid major & minor

Question 10

Flexion of GHJ

Answer 10

Pectoralis major
Deltoid- anterior portion
Coracobrachilis
Biceps brachii (weak)

Question 11

Extension of GHJ

Answer 11

Latissimus dorsi
Deltoid (posterior portion)
Triceps brachii- long head

Question 12

Abduction of GHJ

Answer 12

Deltoid- middle portion after 15 degrees

supraspinatus- initial 15 degrees

Question 13

Adduction of GHJ

Answer 13

Pectoralis major
Latissimus dorsi
Teres major
Subscapularis

Question 14

Medial rotation of GHJ

Answer 14

pectoralis major
latissimus dorsi
deltoid- anterior portion
Teres major
subscapularis

Question 15

Lateral rotation of GHJ

Answer 15

Deltoid- posterior portion
infraspinatus
teres minor

Question 16

Flexion at elbow

Answer 16

biceps brachii
brachial
brachioradialis

Question 17

Extension at elbow

Answer 17

triceps brachii

Question 18

Pronation of forearm

Answer 18

Pronator quadratus

Pronator teres

Question 19

Supination of forearm

Answer 19

Supinator
Biceps brachii (when elbow is flexed)

Question 20

Flexion of wrist

Answer 20

Flexor carpi radialis
Flexor carpi ulnaris
Palmaris longus
Flexor digitorum superficialis
Flexor digitorum profundus
Flexor pollucis longus

Question 21

Extension of wrist

Answer 21

Extensor carpi radialis longus
Extensor carpi radialis brevis
Extensor carpi ulnaris
Extensor digitorum

Question 22

Abduction of wrist

Answer 22

Flexor carpi radialis
Extensor carpi radialis longus
Extensor carpi radialis brevis

Question 23

Adduction of wrist

Answer 23

Flexor carpi ulnaris

Extensor carpi ulnaris

Question 24

Flexion of MCP

Answer 24

Flexor digitorum superficialis
Flexor digitorum profundus
Lumbricals
Flexor digiti minimi
Flexor pollicis longus
Flexor pollicis brevis

Question 25

Extension of MCP

Answer 25

Extensor digitorum Extensor digiti minimi Extensor pollicis brevis Extensor pollicis longus

Question 26

Abduction of MCP

Answer 26

Dorsal interossei | abductor digiti minimi

Question 27

Adduction of MCP

Answer 27

Palmar interossei

Question 28

Flexion of DIP

Answer 28

Flex digitorum profundus

Question 29

Extension of PIP & DIP

Answer 29

``` Lumbricals Extensor indicis Extensor digitorum Extensor digiti minimi Extensor pollicis longus ```

Question 30

Flexion of the pollex

Answer 30

Flexor pollicis longus | Flexor pollicis brevis

Question 31

Extension of pollex

Answer 31

Extensor pollicis brevis Extensor pollicis longus Abductor pollicis longus

Question 32

Abduct pollex

Answer 32

Abductor pollicis longus

Question 33

Adduct pollex

Answer 33

Adductor pollicis

Question 34

Oppose pollex

Answer 34

Opponens pollicis

Question 35

Opposition of digiti minimi

Answer 35

Opponens digiti minimi