Muscles Of The Lower Limb Flashcards
(38 cards)
Iliopsoas
What is it?
Flexors of the hip
Mention the 3 muscles found in the iliopsoas
1) psoas major
2) psoas minor
3) iliacus
Which muscle is involved in maintaining upright posture?
Psoas major
What do the gluteal muscles do?
Extend and rotate the hip
Mention the 3 gluteal muscles
1) gluteus maximus
2) gluteus medius
3) gluteus minimus
Tensor fascia latae
Lateral hip muscle - frequently visible and palpable flexor and medial rotator of the hip joint.
Inserts into this fibrous band, tensing it.
Mention the 6 deep lateral rotator muscles
1) Piriformis
2) Obturator internus
3) Obturator externus
4) Quadratus femoris
5) Gemellus superior
6) Gemellus inferior
What does the quadriceps femoris do?
Extends the knee joint and help stabilize the knee
Global mobilizers
What does the sartorius muscle do?
Flexes the knee and hip
Mention the four heads of the quadriceps femoris
1) rectus femoris
2) vastus lateralis
3) vastus intermedius
4) vastus medialis
Mention the Medial thigh muscles
1) adductors
Adductor brevis
Adductor longus
Adductor magnus
2) gracilis
3) pectineus
4) obturator externus
What do the medial thigh muscles do?
Adduct & rotate the hip
Posterior thigh - what do the hamstrings do?
Knee flexion & thigh extension
Mention the 3 hamstring muscles
1) semimembranosus (medial)
2) semitendinosus
3) biceps femoris (lateral)
What do the Muscles of the anterior lower leg do?
Dorsiflex the ankle
Mention the muscles of the anterior lower leg
1) tibialis anterior
2) extensor digitorum longus - extends toe 2-5
3) extensor hallucis longus - extends big toe
4) Fibularis (peroneus) tertius
What do the muscles of the lower lateral leg do?
Plantarflex and evert the foot while stabilizing the ankle
Mention the two muscles of the lower lateral leg
1) fibularis (peroneus) longus
2) fibularis (peroneus) brevis
What do the superficial lower posterior muscles do?
Plantarflex the foot
Mention the superficial lower posterior muscles
1) gastrocnemius (activated when rising on heels)
2) soleus (activated when knee is bent and heels are raised like foot series)
3) plantaris
4) achillis tendon
What do the deep muscles of the posterior leg do?
Plantarflex and invert the foot
Mention the 4 deep muscles of the lower posterior leg
1) popliteus - rotates the leg
2) tibialis posterior
3) flexor digitorum longus - flex toes
4) flexor hallucis longus - flex toes
What do the dorsum or extensor muscles of the foot do?
Extend toes
Mention the dorsal surface muscles
1) extensor digitorum brevis
2) extensor hallucis brevis