muscles of the hip and lower limb

Question 1

describe paoas major

Answer 1

part of the pelvis/upper leg. Flexes the hip when femur is fixed and flexes the trunk

Question 2

describe paoas minor

Answer 2

part of the pelvis/upper leg. Flexes the trunk

Question 3

describe the illacus

Answer 3

part of the pelvis/upper leg. Flexes the hip when the femur is fixed and flexes the trunk

Question 4

describe the gluteus maximus

Answer 4

abducts, extends, and laterally rotates the hip

Question 5

describe the gluteus medius?

Answer 5

abducts the thigh and stabilizes the hip. Anterior portion internally rotates the thigh, posterior portion externally rotates the thigh

Question 6

describe the gluteus minimus

Answer 6

abducts the thigh and stabilizes the hip. Anterior portion internally rotates the thigh, posterior portion externally rotates the thigh

Question 7

describe the tensor fasciae latae

Answer 7

tenses the fascia lata and abducts and internally rotates the thigh, and it stabilizes the hip and knee joints

Question 8

describe the quadratus femoris

Answer 8

externally rotates and adducts the hip

Question 9

describe the pisiformis

Answer 9

externally rotates, adducts, and extends the hip joint. Also stabilizes the hip.

Question 10

describe the parts of the quadriceptis femoris

Answer 10

rectus femoris: extends the leg at the knee joint and flexes the hip
vastus lateralis: extends the leg at the knee joint
vastus medialis: extends the leg at the knee joint
vastus intermedius: extends the leg at the knee joint

Question 11

describe the sartorius

Answer 11

flexes, abducts, and laterally rotates the thigh at the hip joint. Flexes and medially rotates the leg at the knee

Question 12

describe adductors

Answer 12

adduct and medially rotate the thigh

Question 13

describe the biceps femoris

Answer 13

the long head and short head; both flex the leg at the knee and laterally rotate the tibia. The long head also extends the hip

Question 14

describe the semitendinosus

Answer 14

flexes the leg at the knee joint and medially rotates the leg

Question 15

describe the semimembranosus

Answer 15

flexes the leg at the knee joint and medially rotates the leg

Question 16

describe the tibialis anterior

Answer 16

dorsiflexes and inverts the foot

Question 17

describe the extensor digitorum

Answer 17

extends digits two through five and dorsiflexes the foot

Question 18

describe the extensor hallucis longus

Answer 18

extends digit one and inverts and dorsiflexes the foot

Question 19

describe the gastrocnemius

Answer 19

calf; plantar flexes the foot and flexes the leg at the knee

Question 20

describe the soleus

Answer 20

plantarflexes the foot

Question 21

describe the plantaris

Answer 21

flexes the knee and it plantarflexes the foot

Question 22

describe the popliteus

Answer 22

unlocks and flexes the knee and it medially rotates the tibia

Question 23

describe the tibialis posterior

Answer 23

plantarflexes, inverts, and adducts the foot

Question 24

describe the flexor digitorum

Answer 24

the longus flexes the phalanges of distal joints two through five and inverts and plantarflexes the foot. The brevi flexes digits two through five

Question 25

describe the flexor hallucis

Answer 25

the longus flexes the big toe (halax) and invert and plantarflexes the foot. The brevis flexes the NTP joint of the big toe

Question 26

extensor digitorum

Answer 26

extend digits two through four

Question 27

extensor hallucis

Answer 27

extends the big toe

Question 28

which muscles are involved in plantar flexion?

Answer 28

gastrocnemius, plantaris, soleus, tibialis posterior, flexor digitorum/hallucis,

Question 29

which muscles are involved in dorsiflexion?

Answer 29

extensor digitorum/hallucis, tibialis anterior