Muscle 2 - Lower Body

Question 1

Where is the origin of the external abdominal oblique?

Answer 1

Anterior surface of lower 8 ribs

Question 2

Where is the insertion of the external abdominal oblique?

Answer 2

Abdominal aponeurosis; iliac & pubic crest

Question 3

State one action of the external abdominal oblique.

Answer 3

Flexion & rotation of trunk; lateral flexion

Question 4

Where is the origin of the internal abdominal oblique?

Answer 4

Inguinal ligament; anterior iliac crest

Question 5

Where is the insertion of the internal abdominal oblique?

Answer 5

Abdominal aponeurosis; cartilage of last 3 ribs

Question 6

State one action of the internal abdominal oblique.

Answer 6

Flexion & rotation of trunk; lateral flexion

Question 7

Where is the origin of the transverse abdominal?

Answer 7

Inguinal ligament; iliac crest; costal cartilage of last 6 ribs

Question 8

Where is the insertion of the transverse abdominal?

Answer 8

Abdominal aponeurosis; pubic crest

Question 9

State one action of the transverse abdominal.

Answer 9

Compression of abdominal cavity

Question 10

Where is the origin of the rectus abdominis?

Answer 10

Costal cartilage of ribs 5-7 & xiphoid process

Question 11

Where is the insertion of the rectus abdominis?

Answer 11

Pubic symphysis & crest

Question 12

State one action of the rectus abdominis.

Answer 12

Flexion of trunk; compression of abdominal cavity

Question 13

Where is the origin of the gluteus maximus?

Answer 13

Posterior ilium & sacrum

Question 14

Where is the insertion of the gluteus maximus?

Answer 14

Gluteal tuberosity of femur & iliotibial tract

Question 15

State one action of the gluteus maximus.

Answer 15

Extension of hip; lateral rotation & abduction of thigh

Question 16

Where is the origin of the gluteus medius?

Answer 16

Lateral surface of ilium

Question 17

Where is the insertion of the gluteus medius?

Answer 17

Greater trochanter of femur

Question 18

State one action of the gluteus medius.

Answer 18

Medial rotation & abduction of thigh

Question 19

Where is the origin of the sartorius?

Answer 19

ASIS

Question 20

Where is the insertion of the sartorius?

Answer 20

Medial, proximal shaft of tibia

Question 21

State one action of the sartorius.

Answer 21

Flexion, abduction, lateral rotation of thigh

Question 22

Where is the origin of the psoas major/iliacus?

Answer 22

P. Major: lumbar vertebrae
Iliacus: iliac fossa & crest

Question 23

Where is the insertion of the psoas major/iliacus?

Answer 23

Lesser trochanter of femur

Question 24

State one action of the psoas major/iliacus.

Answer 24

Flexion, abduction, lateral rotation of thigh

Question 25

Where is the origin of the tensor fasciae latae?

Answer 25

ASIS, anterior iliac crest

Question 26

Where is the insertion of the tensor fasciae latae?

Answer 26

Iliotibial tract

Question 27

State one action for the tensor fasciae latae.

Answer 27

Extends knee, aids in abduction & medial rotation of thigh

Question 28

Where is the origin of the biceps femoris?

Answer 28

Linea aspera & ischial tuberosity

Question 29

Where is the insertion for the biceps femoris?

Answer 29

Head of fibula; lateral condyle of tibia

Question 30

State one action of the biceps femoris.

Answer 30

Hip extension; knee flexion

Question 31

Where is the origin of the semimembranosus?

Answer 31

Ischial tuberosity

Question 32

Where is the insertion of the semimembranosus?

Answer 32

Medial condyle of tibia; lateral condyle of femur

Question 33

State one action of the semimembranosus.

Answer 33

Hip extension; knee flexion

Question 34

Where is the origin of the semitendinosus?

Answer 34

Ischial tuberosity

Question 35

Where is the insertion of the semitendinosus?

Answer 35

Medial, anterior, proximal shaft of tibia

Question 36

State one action of the semitendinosus.

Answer 36

Hip extension; knee flexion

Question 37

Where is the origin of the rectus femoris?

Answer 37

AIIS, superior margin of acetabulum

Question 38

Where is the insertion of the rectus femoris?

Answer 38

Patella and tibial tuberosity

Question 39

State one action of the rectus femoris.

Answer 39

Knee extension; flexion of hip

Question 40

Where is the origin of the vastus medialis?

Answer 40

Linea aspera; intertrochanter line

Question 41

Where is the insertion of the vastus medialis?

Answer 41

Patella and tibial tuberosity

Question 42

State one action of the vastus medialis.

Answer 42

Knee extension

Question 43

Where is the origin of the vastus lateralis?

Answer 43

Linea aspera; interochanter line

Question 44

Where is the insertion of the vastus lateralis?

Answer 44

Patella and tibial tuberosity

Question 45

State one action of the vastus lateralis.

Answer 45

Knee extension

Question 46

Where is the origin of the vastus intermedius?

Answer 46

Anterior & lateral shaft of femur

Question 47

Where is the insertion of the vastus intermedius?

Answer 47

Patella and tibial tuberosity

Question 48

State one action of the vastus intermedius.

Answer 48

Knee extension

Question 49

Where is the origin of the gracilis?

Answer 49

Inferior ramus & body of pubis

Question 50

Where is the insertion of the gracilis?

Answer 50

Proximal medial tibia

Question 51

State one action of the gracilis.

Answer 51

Adduction of thigh; flexion, medial rotation of leg

Question 52

Where is the origin of the adductors?

Answer 52

Inferior ramus & body of pubis; ischial tuberosity

Question 53

Where is the insertion of the adductors?

Answer 53

Linea aspera; gluteal tuberosity

Question 54

State one action of the adductors.

Answer 54

Adduction, medial rotation of thigh

Question 55

Where is the origin of the gastrocnemius?

Answer 55

Medial, lateral condyles of femur

Question 56

Where is the insertion of the gastrocnemius?

Answer 56

Calcaneus via calcaneal tendon (Achilles)

Question 57

State one action of the gastrocnemius.

Answer 57

Plantar flexion of ankle

Question 58

Where is the origin of the tibialis anterior?

Answer 58

Lateral condyle and shaft of tibia

Question 59

Where is the insertion of the tibialis anterior?

Answer 59

First metatarsal; first cuneiform

Question 60

State one action of the tibialis anterior.

Answer 60

Dorsiflexion of ankle