Muscles of the Pelvis and Thigh Flashcards
What are the Muscles apart of the Quadriceps Femoris Group?
This includes: Rectus Femoris Vastus Medialis Vastus Lateralis vastus Intermedius
What is the Action for All the Muscles of the Quadricep femoris Group?
All the fibers as a group work to (Extend the knee joint / Tibiofemoral Joint).
What is the Action of the Rectus Femoris?
Helps Extend the Tibiofemoral joint (Knee Joint)
& Flexion of the pelvis (Coxal Joint).
What is the (O) and (I) for the Rectus Femoris?
(O) Anterior Inferior iliac Spine (AIIS).
(I) Tibial Tuberosity Via the patella and patellar ligament.
What is the (O) and (I) of the Vastus Medialis?
(O) Medial lip of linea Aspera.
(I) Tibial Tuberosity Via the patella and patellar ligament.
What is the (O) and (I) of the Vastus Lateralis?
(O) Lateral lip of linea aspera, Intertrochantic line and Greater trochanter.
(I) Tibial Tuberosity Via the patella and patellar ligament.
What is the (O) and (I) of the Vastus Intermedius?
(O) Anterior and Lateral Shaft of the Femur.
(I) Tibial Tuberosity Via the patella and patellar ligament.
What is the Nerve for all the Quadricep femoris Muscles?
Femoral L2 - 4.
What are the Muscles included in the Hamstrings?
This muscle group includes:
Biceps Femoris
Semitendinosus
Semimembranosus
What is the (O) and (I) for the Biceps Femoris?
(O) (Long Head) Ischial Tuberosity / (Short Head) Lateral lip of the Linea Aspera.
(I) Head of the Fibula
What is the Action for the Biceps Femoris?
Flexion of the Knee
Laterally rotate the flexed knee
(Long Head) helps extend the Hip & Laterally rotate the hip
Posterior Pelvic Tilt
What is the (O) and (I) for the Semitendinosus?
(O) Ischial Tuberosity.
(I) Proximal, medial shaft of the Tibia at pes anserinus tendon.
What is the Action for the Semitendinosus?
Flexion of the Knee medially Rotate Extension of the Hip Assist to medially rotate the hip Posterior Pelvic tilt
What is the (O) and (I) for the Semimembranosus?
(O) Ischial Tuberosity.
(I) Posterior aspect of medial condyle of tibia.
PS: most lateral hamstring
What is the Action for the Semimembranosus?
Flexion of the Knee Medially Rotate Extend the Hip Assist in Medial Rotation of the hip Posterior Pelvic Tilt
What are the muscles included in the Gluteals?
This muscle group includes:
Gluteus Max, Medius and Min.
What are the muscles included in the Gluteals?
This muscle group includes:
Gluteus Max, Medius and Min.
What is the (O) and (I) for the Gluteus Max?
(O) PSIS, Sacral line and Coccyx.
(I) Gluteal Tuberosity & Iliotibial Tract.
What is the Action for the Gluteus Max as a Whole?
Extension of the Hip
Laterally Rotate the hip
Abduction of the Hip
(Lower Fibers) Adduction of the Hip
What is the (O) and (I) for the Gluteus Max?
(O) Coccyx, Edge of the Sacrum, PIC.
I) Iliotibial Tract (Upper Fibers) And Gluteal Tuberosity (Lower Fibers
What is the Action for the Gluteus Max (Lower Fibers)?
Adduction of the Hip.
What is the (O) and (I) for the glute Medius?
(O) Gluteal Surface of the Ilium (Between Anterior & posterior Gluteal lines).
(I) lateral Aspect of the greater Trochanter.
What is the (O) and (I) for the gluteal Medius?
(O) Gluteal Surface of Ilium, Between posterior and Anterior gluteal lines just below the Iliac crest.
(I) Lateral Aspect of Greater trochanter.
What is the (O) and (I) for the gluteus Medius?
(O) Gluteal Surface of Ilium, Between posterior and Anterior gluteal lines just below the Iliac crest.
(I) Lateral Aspect of Greater trochanter.
What is the Action for the Gluteus Medius as a Group?
All Fibers:
Abduction of the Hip.
What is the Action of the Anterior Fibers of the Gluteus Medius?
(Anterior Fibers)
Flexion and medial Rotation of the Hip.
What is the Action for the Posterior Fibers of the Gluteus Medius?
(Posterior Fibers)
Extension and Lateral rotation of the Hip.
What is the Nerve for the Gluteus Medius?
Superior Gluteal L4 - S1.
What is the (O) and (I) for the Gluteus Minimus?
(O) Gluteal Surface of the Ilium Between the Anterior and Inferior Gluteal lines.
(I) Anterior Aspect of the Greater trochanter.
What is the Action of the Gluteus Minimus?
Abduction, Medial Rotation and Flexion of the Hip Joint.
What is the Nerve for the Gluteus Minimus?
Superior Gluteal L4 - S1.
What are the Muscles included in the Adductor Group?
Adductor Magnus, Longus, brevis.
Pectineus
Gracilis
What is the (O) and (I) for the Adductor Magnus?
(O) inferior Ramus of the Pubis, Ramus of Ischium and Ischial Tuberosity.
(I) Medial lip of linea Aspera and Adductor Tubercle.
What is the Nerve for the Adductor Magnus?
Obturator L2 - 4 & Sciatic L4 - S1.
What is the Action of the Adductor Magnus?
Adduction of the Hip
Medially rotate the hip
Assist to flex the hip
(Posterior Fibers) Extension of the Hip joint
What is the (O) and (I) for the Adductor Longus?
(O) Pubic Tubercle
(I) Medial Lip of Linea Aspera
What is the nerve for the Adductor Longus?
Obturator L2 - 4.
What is the (O) and (I) for the Adductor Brevis?
(O) Inferior Ramus of Pubis.
(I) Pectineal line and medial lip of Linea Aspera.
What is the Nerve for the Adductor Brevis?
Obturator L2 - 4.
What is the (O) and (I) for the Pectineus?
(O) Superior ramus of Pubis.
(I) Pectineal line of Femur.
What is the Nerve for the Pectineus?
Femoral and Obturator L2 - 4.
What is the Nerve for the Gracilis?
Obturator L2 - 4.
What is the Nerve for the Gracilis?
Obturator L2 - 4.
What is the (O) and (I) of the (Tensor Fascial Latae and Iliotibial Tract?
(O) Iliac crest, Posterior to the ASIS.
(I) Iliotibial Tract.
What is the Action for the (Tensor Fascial Latae and Iliotibial Tract?
Flexion, Medial rotation & Abduction of The Hip.
What is the Nerve for the (Tensor Fascial Latae and Iliotibial Tract?
Superior Gluteal L4 - S1.
What is the (O) and (I) for the Sartorius?
(O) Anterior Superior Iliac Spine (ASIS)
(I) Proximal, Medial Shaft of the Tibia at Pes anserinus tendon.
What is the Action of the Sartorius?
Flexion, Laterally Rotation and Abduction of the Hip.
Flexion of the Knee and Medial rotation of the Flexed knee.
What is the nerve for the Sartorius?
Femoral L2 - 4.
What are the Muscles in the Lateral Rotator Group?
This includes:
Piriformis & Quadratus Femoris
Obturator Internus & Externus
Gemellus Superior & Inferior
What is the (O) and (I) for the Piriformis?
(O) Anterior Surface of Sacrum.
(I) Superior Aspect of Greater trochanter.
What is the Action for the Piriformis?
Laterally Rotate the Hip.
Abduct the Hip when the hip is flexed.
What is the nerve for the Piriformis?
Sacral Plexus L5 - S2.
What is the (O) and (I) for the Quadratus Femoris?
(O) Lateral border of Ischial Tuberosity.
(I) Intertrochanteric crest, between the greater and lesser trochanter.
What is the Action for the Quadratus Femoris?
Laterally rotates the Hip.
What is the Nerve for the Quadratus Fmeoris?
Scaral Plexus L4 - S2.
What is the (O) and (I) for the Obturator internus?
(O) Obturator membrane and inferior surface of Obturator Foramen.
(I) Medial Surface of Greater trochanter.
What is the Action for the Obturator internus?
Laterally rotates the Hip (Coxal Joint)
What is the nerve for the Obturator Internus?
Sacral plexus L5 - S2.
What is the (O) and (I) for the Obturator Externus?
(O) Rami of pubis and Ischium, Obturator membrane.
(I) trochanteric fossa of femur.
What is the Action for the Obturator Externus?
Lateral rotation of the Hip joint.
What is the nerve for the obturator Externus?
Obturator L3 - 4.
What is the (O) and (I) of the Gemellus Superior?
(O) Ischial Spine.
(I) Medial Surface of Greater Trochanter.
What is the Action for the Gemellus Superior?
Lateral Rotation of the Hip.
What is the nerve for the Gemellus Superior?
Sacral Plexus L5 - S2.
What is the (O) and (I) for the Gemellus Inferior?
(O) Ischial Spine.
(I) Medial Surface of Greater trochanter.
What is the Action for the Gemellus Inferior?
Lateral Rotation of the Hip
What is the Nerve for the Gemellus Inferior?
Sacral Plexus L4 - S2.
What are the muscles of the Adductor group?
Adductor Magnus, longus & Brevis, Pectineus and Gracilis.
What is the Actions for the Adductors as a group?
They all Adduct the Thigh & Medially rotate the Hip Joint.
What is the Actions of Gracilis?
It helps flex the hip joint and the knee.
What is the Action of the Posterior fibers of Adductor Magnus?
Extension of the Hip joint.
What is the (O) and (I) for the Adductor Magnus?
(O) Inferior Ramus of Pubis, Ramus of Ischium and Ischial Tuberosity.
(I) Medial lip of the Linea Aspera and Adductor Tubercle.
What is the (O) and (I) for the Adductor Longus?
(O) Pubic tubercle.
(I) Medial lip of the Linea Aspera.
What is the (O) and (I) for the Adductor Brevis?
(O) Inferior Ramus of Pubis.
(I) Pectineal line and Medial lip of the Linea Aspera.
What is the (O) and (I) for the Pectineus?
(O) Superior Ramus of Pubis.
(I) Pectineal line of Femur.
What is the (O) and (I) for the Gracilis?
(O) Inferior Ramus of Pubis.
(I) Proximal, Medial shaft of the tibia at pes ansernius tendon.
What is the (O) and (I) for the Tensor Fasciae latae & Iliotibial Tract?
(O) Iliac crest, Posterior to the ASIS.
(I) Ilitibial tract.
What is the Action for the IT Band?
Flexion of the Hip joint
Medial rotation of the Hip joint
Abduction of the Hip joint
What is the Action of the Sartorius?
Flexion of the hip joint
Lateral rotation of the Hip joint
Abduction Flexion of the knee
Medial Rotation of the Flexed knee
What is the (O) and (I) for the Sartorius?
(O) Anterior Superior Iliac spine (ASIS)
(I) Proximal, Medial Shaft of the Tibia at pes ansernius tendon.
What are the Iliopsoas muscles?
This includes:
Psoaos Major and Iliacus.
What is the (O) and (I) for the Psoas Major?
(O) Bodies & TVPs of lumbar spine.
(I) Lesser Trochanter.
What is the Action for the Psoas major?
With the (O) fixed: Flexion of the hip joint, may laterally rotate the hip joint.
With the (I) fixed: Flexion of the trunk, toward the thigh, Anterior pelvic tilt.
Unilaterally: Assist to laterally flex the lumbar spine.
What is the Action for the Iliacus?
Fixed (O): Flexion of the Hip, May laterally rotate the Hip joint.
Fixed (I): Flexion of the trunk, Anterior pelvic tilt.
What is the (O) and (I) for the Iliacus?
(O) Iliac Fossa.
(I) Lessor trochanter.
What is the Actions for the Gastrocnemius?
Flexion of the Knee
Planter Flex the Ankle
What is the (O) and (I) for the Gastrocnemius?
(O) Condyles of the Femur, Posterior surfaces.
(I) Calcaneus Via Calcaneus Tendon.
What is the Action of the Soleus?
Planter Flex the Ankle
What is the (O) and (I) for the Soleus?
(O) Soleal line: Proximal Posterior surface of tibia and posterior aspect of head of the Fibula.
(I) Calcaneus Via calcaneal tendon.
What is the Action for the Peroneus Longus?
Evert the foot.
Assist to planter flex the Ankle.
What is the (O) and (I) for the Peroneus Longus?
(O) Head of Fibula and proximal 2/3 of lateral tibia.
(I) Base of the 1st metatarsal and medial cuneiform.
What is the Action for the Peroneus Brevis?
Evert the foot.
Assist to planter flex the foot.
What is the (O) and (I) for the Peroneus Brevis?
(O) Distal 2/3 of lateral fibula.
(I) Tuberosity of 5th metatarsal.
What are the Extensors of the Ankle and Toes?
This includes:
Tibialis Anterior, Extensor Digitorum Longus, Extensor Hallucis Longus.
What is the (O) and (I) for the Tibialis Anterior?
(O) Lateral condyle of tibia: Proximal, lateral surface of tibia and Interossous membrane.
(I) Medial Cuneiform and base of the 1st metatarsal.
What is the Action for the Tibialis Anterior?
Invert and Dorsiflex the Ankle.
What is the (O) and (I) for the Extensor Hallucis Longus?
(O) Middle Anterior Surface of Fibula and Interosseous membrane.
(I) Distal Phalanx of 1st toe.
What is the Action for the Extensor Hallucis Longus?
Extend the 1st toe
Dorsiflex the Ankle
Invert the Foot