Leg and Hip Muscles

Question 1

Gluteus Medius

Answer 1

Hip ABduction, lateral rotation Superior Gluteal N.

Question 3

Gluteus Minimus

Answer 3

Hip ABductor, medial rotation Superior Gluteal N.

Question 4

Tensor Fascia Lata

Answer 4

Medial Rotation of hip, initiation of hip flexion Superior Gluteal N.

Question 5

Small Posterior Hip Lateral Rotators

Answer 5

Piriformis- N. to PiriSup. Gemellus - N. to Obt Int.Obturator Internus - N. to Obt IntInf. Gemellus - N. to Quad Fem Quadratus Femoris - N. to Quad Fem

Question 6

Obturator Externus

Answer 6

Laterally Rotate Hip Obturator N.

Question 7

Prime Flexor of Hip

Answer 7

Illiopsoas (rectus femoris & sartorius can help) Femoral N.

Question 8

Prime extensors

Answer 8

Gluteus Max, and Hamstring Inferior Gluteal N. & Sciatic N.

Question 9

Adduction

Answer 9

Adductor Longus, Brevis, Magnus Pectineus and Gracillis Obturator N.

Question 10

Abduction

Answer 10

Gluteus Medius & Minimus Superior Gluteal N.

Question 11

Lateral Rotation

Answer 11

Small Posterior Hip Lat. Rotators & Obturator Externus Branches of Sacral Plexus N.

Question 12

Illiopsoas

Answer 12

Flexes Hip (Psoas L1,L2, Iliacus L2-L4 femoral)

Question 13

Medial Rotation

Answer 13

Gluteus Minimus & TFL Superior Gluteal N.

Question 14

Gluteus Maximus

Answer 14

Hip extension, abduction, lateral rotation. Inferior Gluteal N.

Question 15

Gracillis

Answer 15

Adduction and knee flexion (Pes Anserine contributor) Obturator N.

Question 16

Rectus Femoris

Answer 16

Initiates Hip Flexion; Knee extension Femoral N.

Question 17

Hamstrings (BF, ST, SM)

Answer 17

Hip Extension, Flex Knee Sciatic N.

Question 18

Gastrocnemius

Answer 18

Flexes Knee in non-weight bearing; Plantar flexes ankle Tibial N.

Question 19

Sartorius

Answer 19

(Tailor’s Muscle) Initiates Hip Flexion, laterally rotates, abducts, and also flexes the knee Femoral N.

Question 20

Tibialis Anterior

Answer 20

Dorsiflexs/Supinates Foot Deep Fibular N.

Question 21

Extensor Digitorum Longus

Answer 21

Dorsiflexes ankle; extends toes Deep Fibular N.

Question 22

Extensor Hallucis Longus

Answer 22

Dorsiflexes ankle; extends big toe Deep Fibular N.

Question 23

Fibularis Tertius

Answer 23

Dorsiflexes ankle; pronates foot Deep Fibular N.

Question 24

Soleus

Answer 24

Plantar flexes ankle Tibial N.

Question 25

Vastus Lateralis, Medialis, Intermedius

Answer 25

Extend KneeFemoral N.

Question 26

Trendelenberg Sign

Answer 26

Integrity of Sup. Gluteal N. or L5 Root, Gmed/min

Question 27

Pectineus

Answer 27

Flexes hip and Adductor Femoral N.

Question 28

Medial Thigh Compartment

Answer 28

Innervated by Obturator N. Adductor Magnus, Brevis, Longus, Pectineus & Gracillis (Obturator Artery is blood supply)

Question 29

Anterior Thigh Compartment

Answer 29

Innervated by Femoral N. Illiopsoas (L1, L2), Sartorius & Quadratus (RF, VL,I,M) and Pectineus. Blood supply is femoral and deep femoral.

Question 30

Who are and what do Pes Anserine tendons do?

Answer 30

Medial support of knee (Sartorius Gracillis Semitendinosus)

Question 31

Medial Meniscus

Answer 31

Most injured, attached to MCL Posterior horn is bigger

Question 32

Lateral Meniscus

Answer 32

Separated from LCL by popliteus tendon Same size horns

Question 33

Knee Flexion

Answer 33

Hamstrings (weight bearing) Gastrocnemius (non-weight bearing)

Question 34

Knee Extension

Answer 34

Quadriceps Femoral N.

Question 35

Pronate Foot

Answer 35

Fibularis Longus, Brevis (Superficial Fibular N.) Fibularis Tertius (Deep Fibular N.)

Question 36

Name the arches if the foot, and what structure support each arch.

Answer 36

Medial longitudinal is supported by the spring ligament. Lateral longitudinal is supported by the long and short plantar ligaments. Transverse is supported by the tendons of the the fibularis longus and brevis

Question 37

Supinate Foot

Answer 37

Tibialis Anterior/Posterior Deep Fibular and Tibial N.

Question 38

Dorsiflex Ankle

Answer 38

Tibialis Anterior, extensor hallicus longus, extensor digitorum longus, fibularis tertius. Deep Fibular N.

Question 39

Plantarflex Ankle

Answer 39

Triceps surae (Gastrocnemius & Soleus) Tibial N.

Question 40

Posterior Thigh Compartment

Answer 40

Innervated by Sciatic N.Biceps Femoris, Semimembranosus, Semitendinosus

Question 41

Medial Lig. of Ankle

Answer 41

Posterior Tibiotalar Lig. Tibiocalcaneal Lig. Tibionavicular Lig.Anterior Tibiotalar Lig.

Question 42

Hip Flexion (major and minor contributors)

Answer 42

Iliacus and psoas combine into the iliopsoas and are the major contributors. The Sartorius, Rectus femoris, and tensor fascia lata help initiate hip flexion

Question 43

Lateral Lig. of Ankle

Answer 43

Calcaneofibular Lig. Posterior TalofibularLig. Anterior Talofibular Lig.

Question 44

Anterior Leg Compartment

Answer 44

(Dorsiflex Muscles) Tibialis Anterior (supinator), Extensor Digitorum Longus, Extensor Hallicus Longus, Fibularis Tertius (Pronator) Deep Fibular N. Anterior Tibial A.

Question 45

Lateral Leg Compartment

Answer 45

(Pronators) Fibularis Longus and Fibularis Brevis. Superficial Fibular N. (Branch of Common Fibular N. ) Fibular A. (Branch of Posterior Tibial A)

Question 46

Superficial Posterior Leg Compartment

Answer 46

Gastrocnemius, Soleus, Plantaris. Tibial N. Posterior Tibial A.

Question 47

Posterior Deep Leg Compartment

Answer 47

Tibialis Posterior (Supinator), Flexor Digitorum Longus, Flexor Hallucis Longus. Tibial N. Posterior Tibial A.