Muscle Movements At Joints

Question 0

Flexion of the shoulder joint

Answer 0

Biceps brachii, pec major, anterior deltoid fibres, coracobrachialis

Question 1

Extension at the shoulder joint

Answer 1

Posterior deltoid fibres, lat dorsi, teres major

Question 2

Abduction of shoulder joint

Answer 2

0-15 degrees: supraspinatus
15-90 degrees: Middle deltoid fibres
90+ degrees: trapezoid and serratus anterior

Question 3

Adduction of shoulder joint

Answer 3

Lat dorsi, pec major, teres major

Question 4

Lateral rotation of the shoulder joint

Answer 4

Teres minor and infraspinatus

Question 5

Medial rotation of the shoulder joint

Answer 5

Anterior deltoid fibres, latissimus dorsi, pec major, teres major, subscapularis

Question 6

Flexion of forearm at elbow

Answer 6

Biceps brachii, brachioradialis, brachialis

Question 7

Extension of forearm at elbow

Answer 7

Triceps brachii and anconeus

Question 8

Wrist flexion

Answer 8

Flexor carpi ulnaris, flexor carpi radialis, flexor digitorum profundus

Question 9

Wrist extension

Answer 9

Extensor carpi radialis longis and brevis, extensor carpi ulnaris, extensor digitorum

Question 10

Wrist adduction

Answer 10

Extensor carpi ulnaris, flexor carpi ulnaris

Question 11

Wrist abduction

Answer 11

Abductor pollicis longis and brevis, flexor carpi radialis, extensor carpi radialis longis and brevis

Question 12

Extend IP joints and flex MCP joint

Answer 12

Lumbricals

Question 13

Abduct fingers at MCP joint

Answer 13

Dorsal interossei

Question 14

Adducts fingers at MCP joint

Answer 14

Palmar interossei

Question 15

Thumb opposition through medially rotating and flexing MC on trapezium

Answer 15

Oppenens pollicis

Question 16

Abducts thumb

Answer 16

Abductor pollicis brevis and longis

Question 17

Flexes MCP joint of thumb in the thenar muscles

Answer 17

Flexor pollicis brevis

Question 18

Rotates metacarple of little finger toward Palm, producing opposition

Answer 18

Opponents digiti minimi

Question 19

Abducts the little finger

Answer 19

Abductor digiti minimi

Question 20

Flexes metacarpal joint of little finger

Answer 20

Flexor digiti minimi brevis

Question 21

Deepens curvature of hand, wrinkles skin of hypothenar eminence

Answer 21

Palmaris brevis

Question 22

Adductor of the thumb

Answer 22

Adductor pollicis

Question 23

Flexion of the hip

Answer 23

Iliopsoas, rectus femoris, sartorius

Question 24

Extension of the hip

Answer 24

Gluteus maximus, semi membranous, semitendinosus, biceps femoris

Question 25

Abduction of the hip

Answer 25

Gluteus medius, gluteus minimus, deep gluteal muscles (gemelli, piriformis)

Question 26

Adduction of the hip

Answer 26

Adductor mangus, longis and brevis ; pectinus, gracillis

Question 27

Lateral rotation of the hip

Answer 27

Biceps femoris, gluteus maximus, deep gluteals

Question 28

Medial rotation of the hip

Answer 28

Gluteus medius and minimus, semitendinosus, semimembranous

Question 29

Extension of the knee

Answer 29

Quadriceps femoris (inserts into tibial tuberosity)

Question 30

Flexion of the knee

Answer 30

Hamstrings (semi muscles and biceps femoris), gracillis, sartorius and popliteus

Question 31

Lateral rotation of the knee

Answer 31

Biceps femoris

Question 32

Medial rotation of the knee

Answer 32

Semimembranous, semitendinosus, gracillis, sartorius and popliteus