Muscle group actions

Question 1

Neck flexors

Answer 1

1. SCM - Sternal attachement
2. SCM - Clavicular attachment
3. Scalenes - Anterior, Medial, Posterios
4. Longus colli

Question 2

Neck extensors

Answer 2

1. Splenius Capitis
2. Splenius Cervicis
3. Upper Trapezius

Question 3

Elevators of the scapula

Answer 3

1. Upper Trapezius

2. Levator Scapula

Question 4

Depressors of the scapula

Answer 4

1. Pectoralis Minor

2. Lower trapezius

Question 5

Protractors of the scapula

Answer 5

1. Pectoralis Minor

2. Serratus Anterior

Question 6

Retractors of the scapula

Answer 6

1. Middle Trapezius

2. Rhomboid

Question 7

Upward rotators of the scapula

Answer 7

1. Upper Trapezius
2. Lower Trapezius
3. Serratus Anterior

Question 8

Downward rotators of the scapula

Answer 8

1. Levator Scapula
2. Rhomboids
3. Pectoralis Minor

Question 9

Medial rotators of the humerus

Answer 9

1. Anterior Deltoid
2. Pectoralis Major
3. Subscapularis
4. Teres Major
5. Latissimus Dorsi

Question 10

Lateral rotators of the humerus

Answer 10

1. Infraspinatus
2. Teres Minor
3. Posterior Deltoid

Question 11

Flexors of the humerus

Answer 11

1. Anterior Deltoid
2. Pectoralis Major
3. Coracobrachialis
4. Biceps Brachii

Question 12

Extensors of the humerus

Answer 12

1. Latissimus Dorsi
2. Teres Major
3. Posterior Deltoid
4. Infraspinatus
5. Teres Mino
6. Triceps Brachii
7. Pectoralis Major

Question 13

Abductors of the humerus

Answer 13

1. Supraspinatus

2. Middle deltoid

Question 14

Adductors of the humerus

Answer 14

1. Pectoralis
2. Coracobrachialis
3. Latissimus Dorsi
4. Teres Major
5. Subscapularis

Question 15

Horizontal abductor of the humerus

Answer 15

1. Posterior deltoid

Question 16

Horizontal adductors of the humerus

Answer 16

1. Anterior deltoid

2. Pectoralis Major

Question 17

Flexors of the elbow

Answer 17

1. Biceps Brachii
2. Brachialis
3. Brachioradialis
4. Pronator Teres

Question 18

Extensors of the elbow

Answer 18

1. Triceps Brachii

2. Anconeus

Question 19

Supinators of the forearm

Answer 19

1. Biceps Brachii

2. Supinator

Question 20

Pronators of the forearm

Answer 20

1. Pronator Teres

2. Pronator Quadratus

Question 21

Flexors of the wrist

Answer 21

1. Flexor Carpi Radialis
2. Felxor Carpi Ulnaris
3. Palmaris Longus

Question 22

Extensors of the wrist

Answer 22

1. Extensor Carpi radialis longus
2. Extensor Carpi Radialis brevis
3. Extensor Carpi ulnaris

Question 23

Abductors of the wrist

Answer 23

1. Flexor carpi radialis

2. Extensor carpi radialis longus

Question 24

Adductors of the wrist

Answer 24

1. Extensor carpi ulnaris

2. Flexor carpi ulnaris

Question 25

Abductors of the thumb and digits

Answer 25

Thumb - CM Joint 1. Abductor pollicis longus 2. Abductor pollicis brevis Digits - MP Joints 1. Dorsal interossei - second, third, fourth fingers 2. Abductor digiti minimi

Question 26

Adductors of the thumb and digits

Answer 26

Thumb - CM Joint 1. Adductor pollicis Digits - MP Joints 1. Palmar interossei, second, third, fourth, fifth fingers 2. Dorsal interosseous, third finger

Question 27

Extensors of the thumb and digits Thumb - MP Joint & Interphalangeal joints Digits - MP joints DIP & PIP joints

Answer 27

Thumb - MP Joint 1. Extensor pollicis brevis Thumb - Interphalangeal joint 1. Extensor Pollicis longus Digits - MP joints 1. Extensor digitorum 2. Extensor Indicis 3. Extensor Digiti minimi DIP & PIP joints 1. Dorsal interossei

Question 28

``` Flexors of the thumb and digits: Thumb - MP Joint Digits - MP joints DIP & Pip: Opposition ```

Answer 28

Thumb & MP Joints 1. Flexor pollicis longus 2. Flexor Pollicis Brevis & flexor digiti minimi 3. Palmar interossei DIP joints: 1. Lumbricales 2. Flexor digitorum profundus PIP joints: 1. Flexor digitorum superficialis Opposition 1. Opponens Pollicis 2. Opponens digiti minimi

Question 29

Torso flexors

Answer 29

1. Rectus Abdominis 2. External Oblique 3. Internal Oblique 4. Transverse Abdominis

Question 30

Torso extensors

Answer 30

1. Iliocostalis: Cervicis, Thoracis, Lumborum 2. Longissimus: Capitis, Cervicis, Thoracis 3. Spinalis: Capitis, Cervicis, Thoracis 4. Semispinalis: Capitis, Cervicis

Question 31

Side-Bending Muscles

Answer 31

1. Quadratus Lumborum 2. External Oblique 3. Internal Oblique

Question 32

Torso Rotators

Answer 32

1. External Oblique 2. Internal Oblique 3. Mulitifidi 4. Rotatores

Question 33

Lateral Rotators of the hip

Answer 33

1. Piriformis 2. Gemellus superior 3. Obturatorius Internus 4. Gemellus inferior 5. Obturatorius Externus 6. Quadratus Femoris 7. Gluteus Maximus 8. Sartorius 9. Gluteus medius

Question 34

Medial rotators of the hip

Answer 34

1. Gluteus Medius 2. Gluteus Minimus 3. Tensor fascia latae 4. Adductor Magnus - anterior head

Question 35

Flexors of the hip

Answer 35

1. Psoas Major 2. Iliacus 3. Pectineus 4. Tensor Fascia latae 5. Adductor brevis 6. Adductor longus 7. Adductor magnus - ant. head 8. Rectus Femoris 9. Sartorius

Question 36

Extensors of the hip

Answer 36

1. Gluteus Maximus 2. Biceps Femoris 3. Semitendinosus 4. Semimembranosus 5. Adductor magnus - post head

Question 37

Abductors of the hip

Answer 37

1. Gluteus Medius 2. Gluteus Minimus 3. Tensor Fascia Latae 4. Sartorius (Gluteus Maximus)

Question 38

Adductors of the hip

Answer 38

``` Pectineus Adductor Brevis Adductor Longus Adductor Magnus Gracilis ```

Question 39

Lateral rotators of the knee

Answer 39

Biceps Femoris

Question 40

Medial rotators of the knee

Answer 40

``` Popliteus Semimembranosus Semitendinosus Gracilis Sartorius ```

Question 41

Flexors of the knee

Answer 41

``` Biceps Femoris Semitendinosus Semimembranosus Sartorius Gracilis Gastrocnemius Popliteus ```

Question 42

Extensors of the knee

Answer 42

``` Vastus Intermedius Vastus Lateralis Vastus Medialis Rectus Femoris Tensor Fascia Latae ```

Question 43

Dorsiflexors of the ankle

Answer 43

Tibialis Anterior Extensor Hallucis Longus Extensor digitorum longus Peroneus Tertius

Question 44

Plantarflexors of the ankle

Answer 44

``` Gastrocnemius Soleus Plantaris Peroneus longus Peroneus brevis Tibialis Posterior Flexor Hallucis Longus Flexor digitorum longus ```

Question 45

Inverters of the foot

Answer 45

Tibialis Anterior | Tibialis Posterior

Question 46

Everters of the foot

Answer 46

Peroneus Longus Peroneus Brevis Peroneus Tertius