Exam 3 Flashcards
Adductor Brevis and Adductor Longus Action
- hip adduction
- hip internal rotation
- assists w/ hip flexion
Gracilis A
- Hip Adductoon
- Assists w/ hip flexion
- Assists w/ knee flexion and internal rotation
Semitendonosus A
- knee flexion
- knee internal rotation
- hip extension
Semimembranosus A
- knee: flexion and internal rotation
- hip: extension and internal rotation
O: obturator membrane (internal surface) and obturator foramen
I: greater trochanter of the femur (medial surface)
Obturator Internus O, I
O: obturator membrane (external surface) obturator foramen
I: greater trochanter of the femur (posteromedial side)
Obturator Externus O, I
O: ilium (outer surface - between middle and inferior gluteal lines)
I: greater trochanter of the femur (anterior surface)
Gluteus minimus O, I
O: iliac crest and the ala of the ilium
I: greater trochanter of the femur
Gluteus medius (anterior and posterior fibers) O, I
Psoas Major A
- hip flexion
- trunk flexion (femur)
- assists w/ lateral rotation
Iliacus A
- Hip flexion
- trunk flexion (femur)
- anterior pelvic tilt (fixed thighs)
- assists w/ hip lateral rotation
Q Angle
- what lines form it?
- what are the typical angles?
- what do high w angles do?
- Angles formed by ASIS to center of patella and tibial tubérosité to center of patella
- <15 for males and <20 for females
- higher q angles prédisposé people to lateral patellar dislocation and ligamentous injuries
What is pes ansérine bursitis?
What causes it?
How do you care for it?
- Inflammatory condition of the sartorius, gracillis, and semitendonosis (attached to medial tibia)
- cause: overuse/constant friction and stress on bursa
- care: rest, anti-inflammatories, stretch hamstrings, injections
Semitendonosus and semimembranosus I
Sciatic nerve
Popliteus A
Knee: internal rotation and flexion (fixed at knee)
External and internal oblique A
Horizontal spinal rotation
Spinal flexion
Lateral spinal flexion
Posterior pelvic tilt
Rectus abdominis A
Spinal flexion
Posterior pelvic tilt
Iliocostalis and longissimus A
Spinal extension
Lateral spinal flexion
Anterior pelvic tilt
IT Band Friction Syndrome/Runner’s/Cyclist’s Knee
Cause, signs, care
- Care: repeated knee flexion and extension
- signs: tenderness, mild swelling, pain during running/cycling
- care: stretch IT Band, correct foot and leg alignment problems, proper warm up, avoid activities
Piriformis I
Direct from the sacral plexus
S1, S2
Fibularis (peroneus) brevis and longus A
Foot eversion
Assists w/ ankle plantar flexion
Lumbricals 1-4 A
MP Joint Flexion
Assists w/ IP Extension of 2nd - 5th digits
O: lateral condyle of the femur and lateral meniscus of the knee joint
I: body of the tibia (posterior surface) -> proximal to the soleal line
Popliteus O, I
Piriformis A
Hip lateral rotation
May assist w/ hip abduction when hip is flexed
O: anterior superior iliac spine, outer lip of the anterior iliac crest, fascia Latae
I: IT Band
Tensor fascia latae (TFL) O, I
Gluteus medius anterior fibers A
- Assists a/ hip medial rotation and hip flexion
- hip abduction
Adductor Magnus A
Hip adduction
Hip internal rotation
Assists w/ hip extension
Vastus intermedius, lateralis, and medialis A
Knee extension
O: greater trochanter and the lateral lip of the linea aspera of the femur
I: patella (proximal border) and tuberosity of the tibia (via patellar ligament)
Vastus lateralis O, I
O: medial lip of the linea aspera of the femur
I: patella (proximal border) and tuberosity of the tibia (via patellar ligament)
Vastus Medialis O, I
O: iliac fossa of the hip bone
I: distal to the lesser trochanter of the femur (common w/ tendon of psoas major)
Iliacus O, I
O: inferior ramis of the pubis and ischial tuberosity
I: femur: medial lip of the linea aspera and the adductor tubercle
Adductor magnus O, I
Gluteus medius and gluteus minimus I
Superior gluteal nerve
Psoas major I
Femoral nerve
Iliacus I
Femoral nerve
Flexor digitorum longus A
Plantar flexion of toes 2-5
Assists w/ ankle plantsr flexion and foot eversion
Flexor hallicus longus A
Plantar flexion of big toe
Assists w/ ankle plantar flexion and foot inversion
Extensor hallicus longus A
Extend great toe
Assists w/ ankle dorsi flexion and foot inversion
Extensor digitorum longus A
Extends lateral 4 digits
Assists w/ ankle dorsiflexion and foot eversion
Abductor hallucis A
Abducts and assists w/ flexing big toe
Flexor digitorum brevis A
Flex lateral 4 toes
Abductor digits minimi A
Abduct and flex MP joint of 5th toe
Flexor hallicus brevis A
Flex MP Joint of the great toe
Adductor hallucis A
Adduct MP Joint of the great toe
Assists w/ MP joint flexion of great toe
Flexor digiti minimi brevis A
Flex MP Joint of the small toe
Extensor Digitorum brevis A
Toe extension -> distal interphalangeal joints 2-4
O: soleal line of the tibia and upper 1/3 head and dorsal surface of the fibula
I: calcaneus (posterior side) via Achilles tendon
Soleus O, I
O: middle of the anterior surface of the fibula and interosseous membrane
I: base of the distal phalanx of the great toe
Extensor hallicus longus O, I
O: lateral condyle of the tibia, superior 3/4 of anterior shaft, interosseous membrane (anterior surface), superior tibiofibular joint
I: extensor expansion complex of toes 2-5 (middle and distal phalanges)
Extensor digitorum longus O, I
Sartorius I
Femoral nerve
Gluteus Maximus I
Inferior gluteal nerve