Origin, Insertion & Action Review

1. This muscle attaches to the ischial tuberosity, the lateral lip of the linea aspera, and the head of the fibula. Its actions include knee flexion, lateral rotation of the flexed knee, hip extension, and lateral rotation of the hip

a. Teres Majorb. Semimembranosusc. Gastrocnemiusd. Biceps Femoris

1. This muscle attaches to the ischial tuberosity, the lateral lip of the linea aspera, and the head of the fibula. Its actions include knee flexion, lateral rotation of the flexed knee, hip extension, and lateral rotation of the hip

a. Teres Majorb. Semimembranosusc. Gastrocnemiusd. Biceps Femoris

2. This muscle attaches to the lateral side of the inferior angle and lower half of the lateral border of the scapula; it inserts of the crest of the lesser tubercle of the humerus.

a. Teres minorb. Triceps c. Teres majord. Deltoid

2. This muscle attaches to the lateral side of the inferior angle and lower half of the lateral border of the scapula; it inserts of the crest of the lesser tubercle of the humerus.

a. Teres minorb. Triceps c. Teres majord. Deltoid

3. Attachments include the coracoid process of the scapula and the medial surface of the mid-humeral shaft. Actions are shoulder flexion and shoulder adduction.

a. Biceps brachiib. Coracobrachialis c. Teres majord. Levator scapula

3. Attachments include the coracoid process of the scapula and the medial surface of the mid-humeral shaft. Actions are shoulder flexion and shoulder adduction.

a. Biceps brachiib. Coracobrachialis c. Teres majord. Levator scapula

4. This muscle adducts the scapula, elevates the scapula, and downwardly rotates the scapula.

a. Levator scapulab. Rhomboid majorc. Infraspinatusd. Supraspinatus

4. This muscle adducts the scapula, elevates the scapula, and downwardly rotates the scapula.

a. Levator scapulab. Rhomboid majorc. Infraspinatusd. Supraspinatus

5. This muscle attaches to the coccyx, posterior sacrum, posterior iliac crest, sacrotuberous and sacroiliac ligaments and the gluteal tuberosity of the femur and iliotibial tract. Its movements include hip extension, lateral rotation of the hip, abduction of the hip and its lower fibers adduct the hip.

a. Tensor fascia lataeb. Gluteus medius c. Biceps femorisd. Gluteus maximus

5. This muscle attaches to the coccyx, posterior sacrum, posterior iliac crest, sacrotuberous and sacroiliac ligaments and the gluteal tuberosity of the femur and iliotibial tract. Its movements include hip extension, lateral rotation of the hip, abduction of the hip and its lower fibers adduct the hip.

a. Tensor fascia lataeb. Gluteus medius c. Biceps femorisd. Gluteus maximus

6. This muscle flexes the elbow, supinates the forearm and flexes the shoulder.

a. Supinatorb. Biceps brachii c. Deltoidd. Triceps

6. This muscle flexes the elbow, supinates the forearm and flexes the shoulder.

a. Supinatorb. Biceps brachii c. Deltoidd. Triceps

7. This muscle attaches to the upper 8-9 ribs, and the anterior surface of the medial border of the scapula.

a. External obliqueb. Latissimus dorsi c. Teres majord. Serratus anterior

7. This muscle attaches to the upper 8-9 ribs, and the anterior surface of the medial border of the scapula.

a. External obliqueb. Latissimus dorsi c. Teres majord. Serratus anterior

8. This muscle elevates the scapula, downwardly rotates the scapula, laterally flexes the neck and rotates the head to the same side. Bilaterally it extends the head and neck.

a. Levator scapulab. Sternocleidomastoidc. Serratus anteriord. Scalenes

8. This muscle elevates the scapula, downwardly rotates the scapula, laterally flexes the neck and rotates the head to the same side. Bilaterally it extends the head and neck.

a. Levator scapulab. Sternocleidomastoid c. Serratus anteriord. Scalenes

9. This muscle attaches to the anterior sacrum and the posterior femur between the greater and lesser trochanter. Its actions include lateral rotations of the hip and abduction of the hip.

a. Quadratus femorisb. Quadratus lumborum c. Piriformisd. Gluteus minimus

9. This muscle attaches to the anterior sacrum and the posterior femur between the greater and lesser trochanter. Its actions include lateral rotations of the hip and abduction of the hip.

a. Quadratus femorisb. Quadratus lumborum c. Piriformisd. Gluteus minimus

10. This muscle laterally rotates the shoulder, adducts the shoulder, extends the shoulder, horizontally abducts the shoulder and stabilizes the head of the humerus in the glenoid cavity.

a. Infraspinatusb. Supraspinatus c. Deltoidd. Teres major

10. This muscle laterally rotates the shoulder, adducts the shoulder, extends the shoulder, horizontally abducts the shoulder and stabilizes the head of the humerus in the glenoid cavity.

a. Infraspinatusb. Supraspinatus c. Deltoidd. Teres major

11. This muscle attaches at the anterior inferior iliac spine (AIIS) and the tibial tuberosity. Its actions include extension of the knee and hip flexion.

a. Gluteus maximusb. Semitendonosus c. Rectus femorisd. Quadratus femoris

11. This muscle attaches at the anterior inferior iliac spine (AIIS) and the tibial tuberosity. Its actions include extension of the knee and hip flexion.

a. Gluteus maximusb. Semitendonosus c. Rectus femorisd. Quadratus femoris

12. This muscle attaches at the ischial tuberosity and the posterior aspect of the medial condyle of the tibia. Its actions include knee flexion, medial rotation of the flexed knee, hip extension, and medial rotation of the hip.

a. Gracilisb. Semimembranosus c. Biceps femorisd. Gluteus medius

12. This muscle attaches at the ischial tuberosity and the posterior aspect of the medial condyle of the tibia. Its actions include knee flexion, medial rotation of the flexed knee, hip extension, and medial rotation of the hip.

a. Gracilisb. Semimembranosus c. Biceps femorisd. Gluteus medius

13. This muscle flexes the wrist, adducts the wrist, and assists in elbow flexion.

a. Flexor carpi ulnarisb. Brachioradialis c. Flexor carpi radialis longusd. Pronator teres

13. This muscle flexes the wrist, adducts the wrist, and assists in elbow flexion.

a. Flexor carpi ulnarisb. Brachioradialisc. Flexor carpi radialis longusd. Pronator teres

14. This muscle attaches in the supraspinous fossa of the scapula and the greater tubercle of the humerus. It stabilizes the head of the humerus in the glenoid cavity and abducts the shoulder.

a. Infraspinatusb. Deltoid c. Extensor hallucis longusd. Supraspinatus

14. This muscle attaches in the supraspinous fossa of the scapula and the greater tubercle of the humerus. It stabilizes the head of the humerus in the glenoid cavity and abducts the shoulder.

a. Infraspinatusb. Deltoidc. Extensor hallucis longusd. Supraspinatus

15. This muscle attaches to the posterior condyles of the femur and the calcaneus via the calcaneal tendon. Its actions include plantar flexion of the ankle and flexion of the knee.

a. Soleusb. Gastrocnemius c. Rectus femorisd. Tibialis anterior

15. This muscle attaches to the posterior condyles of the femur and the calcaneus via the calcaneal tendon. Its actions include plantar flexion of the ankle and flexion of the knee.

a. Soleusb. Gastrocnemius c. Rectus femorisd. Tibialis anterior

16. This muscle attaches at the inferior ramus of the pubis and ramus of the ischium; also the proximal, medial shaft of the tibia at the pes anserinus tendon. Its actions include adduction of the hip, medial rotation of the hip, knee flexion and medial rotation of the flexed knee.

a. Sartoriusb. Gracilis c. Semitendonosusd. Gastrocnemius

16. This muscle attaches at the inferior ramus of the pubis and ramus of the ischium; also the proximal, medial shaft of the tibia at the pes anserinus tendon. Its actions include adduction of the hip, medial rotation of the hip, knee flexion and medial rotation of the flexed knee.

a. Sartoriusb. Gracilis c. Semitendonosusd. Gastrocnemius

17. This muscle attaches at the anterior superior iliac spine (ASIS) and the proximal, medial shaft of the tibia at the pes anserinus tendon. Its actions include hip flexion, lateral rotation of the hip, abduction of the hip, knee flexion and medial rotation of the flexed knee.

a. Iliopsoasb. Rectus femoris c. Gluteus mediusd. Sartorius

17. This muscle attaches at the anterior superior iliac spine (ASIS) and the proximal, medial shaft of the tibia at the pes anserinus tendon. Its actions include hip flexion, lateral rotation of the hip, abduction of the hip, knee flexion and medial rotation of the flexed knee.

a. Iliopsoasb. Rectus femoris c. Gluteus mediusd. Sartorius

18. This muscle flexes the hip, laterally rotates the hip and adducts the hip.

a. Sartoriusb. Iliopsoas c. Rectus femorisd. Gracilis

18. This muscle flexes the hip, laterally rotates the hip and adducts the hip.

a. Sartoriusb. Iliopsoas c. Rectus femorisd. Gracilis

19. This muscle everts the foot and assists in plantar flexion of the ankle.

a. Vastus lateralisb. Tibialis anterior c. Peroneus longusd. Extensor digitorum

19. This muscle everts the foot and assists in plantar flexion of the ankle.

a. Vastus lateralisb. Tibialis anterior c. Peroneus longusd. Extensor digitorum

20. This muscle depresses the scapula, abducts the scapula and tilts the scapula anteriorly.

a. Pectoralis minorb. Pectoralis major c. Deltoidd. Trapezius (lower fibers)

20. This muscle depresses the scapula, abducts the scapula and tilts the scapula anteriorly.

a. Pectoralis minorb. Pectoralis major c. Deltoidd. Trapezius (lower fibers)

21. This muscle extends the knee.

a. Vastus lateralisb. Gastrocnemius c. Peroneus longusd. Semitendonosus

21. This muscle extends the knee.

a. Vastus lateralisb. Gastrocnemius c. Peroneus longusd. Semitendonosus

22. This muscle extends the elbow, also performs shoulder extension and shoulder adduction.

a. Biceps brachiib. Infraspinatus c. Triceps brachiid. Deltoid

22. This muscle extends the elbow, also performs shoulder extension and shoulder adduction.

a. Biceps brachiib. Infraspinatus c. Triceps brachiid. Deltoid

23.