Major Muscles of Trunk and Limbs

Question 1

Answer 1

External Intercostals

Involved in both quite and forced inspiration and expiration (breathing)

Question 2

Answer 2

Internal Intercostals

Involved in both quite and forced inspiration and expiration (breathing)

Question 3

Answer 3

Pectoralis Major

Movemnt of humerous and shoulder joint

Question 4

Answer 4

Serratus Anterior

Allows scapula to move laterally; which allows lifitng of arm

Question 5

Answer 5

Transverse Abdominus

Compresses abdominal contents to increase intra-abdominal pressure

Question 6

Answer 6

Rectus Abdominus

Flexes the vetebrae column

Question 7

Answer 7

External Obliques

Rotates the vertebral column

Question 8

Answer 8

Internal Obliques

Rotates the Vertebral Columns

Question 9

Answer 9

Trapezius

Elevates shoulders, and retracts shoulder blade

Question 10

Answer 10

Rhomboideus Minor

Holds scapula against thoracic wall

Question 11

Answer 11

Rhomboideus Major

Holds scapula to rib cage and retracts scapula

Question 12

Answer 12

Supraspinatus

Abducts the arm at the shoulder joint

Question 13

Answer 13

Infraspinatus

External (lateral) rotation of the arm at the shoulder

Question 14

Answer 14

Teres Minor

Holds humeral head and helps externally rotate arm

Question 15

Answer 15

Teres Major

Interanally roates and adducts humerus

Question 16

Answer 16

Latissimus Dorsi

Shoulder extension

Question 17

Answer 17

Deltoid

Arm abduction

Question 18

Answer 18

Biceps Brachii

Flexes arm at elbow, and supinates forarm

Question 19

Answer 19

Brachialis

Flexes arm at elbow joint

Question 20

Answer 20

Brachioradialis

Flexes the forarm at the elbow

Question 21

Answer 21

Triceps Brachii

Extends arm at elbow

Question 22

Answer 22

Pronator Teres

Pronates the forarm

Question 23

Answer 23

Supinator

Supinates the forarm

Question 24

Answer 24

Flexor Digitorum

Flextion of the phalanges

Question 25

Answer 25

Extensor Carpi Ulnaris Extends and adducts the wrist

Question 26

Answer 26

Extensor Carpi Digitalis Extends phalanges and wrist

Question 27

Answer 27

Extensor Carpi Radialis Radial abduction of hand and wrist

Question 28

Answer 28

Palmaris Longus Weak flexor of wrist

Question 29

Answer 29

Flexor Carpi Radialis Flextion of wrist and abduction of hand and wrist

Question 30

Answer 30

Pectoralis Minor Draws the scapula anteriorly and rib cage superiorly

Question 31

Answer 31

Erector Spinae Straightens back and provides posture

Question 32

Answer 32

Subscapularis Rotates the head of the humerus medially (internal rotation)

Question 33

Answer 33

Gluteus Maximus Movement of hip and leg

Question 34

Answer 34

Gluteus Medius Helps abduct the thigh

Question 35

Answer 35

Gracilis Adducts, medially rotates and flexes hip

Question 36

Answer 36

Vastus Lateralis Extends lower leg

Question 37

Answer 37

Vastus Medialis Extends lower leg

Question 38

Answer 38

Rectus Femoris Flexes thigh at hip

Question 39

Answer 39

Quadriceps Femoris

Question 40

Answer 40

Tensor Fasciae Latae Stabalizes hip extension

Question 41

Answer 41

Sartorius Assists in flexing, lateral roation of hip and flextion of knee

Question 42

Answer 42

Iliopsoas Strongest hip flexor

Question 43

Answer 43

Iliacus

Question 44

Answer 44

Psoas Major

Question 45

Answer 45

Adductor Longus Adducts and flexes thigh at the hip

Question 46

Answer 46

Adductor Magnus Contracts and pulls hip towards midline

Question 47

Answer 47

Semitendinosus Flexes knee and extends hip

Question 48

Answer 48

Biceps Femoris Exetends thigh, knee flexion

Question 49

Answer 49

Semimembranosus flexes knee and extends hip

Question 50

Answer 50

Hamstrings

Question 51

Answer 51

Gastrocnemius Plantar flextion and knee flexion

Question 52

Answer 52

Soleus Plantar flexion

Question 53

Answer 53

Tibialis Anterior Assists in dorsiflexion

Question 54

Answer 54

Fibularis Peroneus Flexes the ankle

Question 55

Answer 55

Fibularis Peroneus Longus Flexes the ankle

Question 56

Answer 56

Fibularis Peroneus Brevis Flexes the ankle

Question 57

Answer 57

Extensor Digitorum Longus Dorsiflexion, eversion of foot and extension of toes

Question 58

Underneath the Rectus Femoris

Answer 58

Vastus Intermedius Assists in dorsiflexion