Lower Limb Flashcards
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When the knee is flexed, hip flexion is limited by the?
Anterior abdominal wall
When the knee is extended, hip flexion is limited by
tension of the hamstring
Hip extension is limited by the
Iliofemoral, pubofemoral, and ischiofemoral ligaments
Hip abduction is limited by the tension of the
Pubofemoral ligament
Hip adduction is limited by the
Opposite limb and Ligament of the head of femur
Hip lateral rotation is limited by the
Iliofemoral and pubofemoral ligaments
Hip medial rotation is limited by the
Ischiofemoral ligament
Innervation of the gluteus maximus
Inferior gluteal nerve
Innervation of the gluteus medius and gluteus minimus
Superior gluteal nerve
Innervation of the tensor fasciae latae
Superior gluteal nerve
Innervation of the piriformis
1st and 2nd sacral nerve (nerve to piriformis)
Innervation of the obturator internus
Sacral plexus (nerve to obturator internus)
Innervation of the superior and inferior gemellus
Sacral plexus
Superior - nerve to obturator internus
Inferior - nerve to quadratus femoris
Innervation of the quadratus femoris
Sacral plexus (nerve to quadratus femoris)
Innervation of the sartorius
Femoral nerve
Innervation of the iliacus
Femoral nerve
Innervation of the psoas
Lumbar plexus
Innervation of the pectineus
Femoral nerve
Innervation of the quadriceps femoris
Femoral nerve
Which of the quadriceps both extends the leg and flexes the thigh
Rectus femoris
The only muscle of the anterior thigh NOT innervated by the femoral nerve (accdg to Snell Table)
Psoas
Innervation of gracilis
Obturator nerve
Innervation of adductor longus and adductor brevis
Obturator nerve
Innervation of adductor magnus
Adductor portion - obturator nerve
Hamstring portion - sciatic nerve
Innervation of the obturator externus
Obturator nerve
Innervation of the biceps femoris
Long head - tibial portion of sciatic nerve
Short head - common peroneal portion of the sciatic nerve
Innervation of semitendinosus and semimembranosus
Tibial portion of sciatic nerve
Innervation of tibialis anterior
Deep peroneal nerve
Innervation of extensor digitorum longus and brevis
Deep peroneal nerve
Innervation of peroneus tertius
Deep peroneal nerve
Innervation of extensor hallucis longus
Deep peroneal nerve
Innervation of peroneus longus
Superficial peroneal nerve
Innervation of peroneus brevis
Superficial peroneal nerve
Innervation of the gastrocnemius and soleus
Tibial nerve
Innervation of the plantaris
Tibial nerve
Innervation of the popliteus
Tibial nerve
Innervation of the flexor digitorum longus
Tibial nerve
Innervation of the flexor hallucis longus
Tibial nerve
Innervation of the tibialis posterior
Tibial nerve
All lymph vessels of the lower limb ultimately drain to the?
Deep inguinal group of nodes
Which knee meniscus is relatively immobile due to its attachment to the collateral ligament?
Medial Meniscus
This structure provides an exit from the pelvis to the gluteal region
Greater sciatic foramen
This structure provides an entrance to the perineum from the gluteal region
Lesser sciatic foramen
Structures that pass through the greater sciatic foramen
Piriformis
Sciatic Nerve
Posterior cutaneous nerve of the thigh Superior and inferior gluteal nerve Nerve to obturator internus and quadratus femoris Pudendal nerve Superior and inferior gluteal vessels Internal pudendal vessels
Structures that pass through the lesser sciatic foramen
Tendon of obturator internus
Nerve to obturator internus
Pudendal Nerve
Internal pudendal artery and vein
What muscle tilts the pelvis to allow the contralateral leg to clear the ground
Gluteus medius or Gluteus minimus
An acute ankle sprain from excessive eversion of the foot will damage which ligament
Medial Ligament or Deltoid Ligament
An acute ankle sprain from excessive inversion of the foot with plantarflexion will damage which ligament
Anterior Talofibular Ligament and Calcaneofibular ligament
The femoral nerve arises from which segment of the spinal cord
Lumbar plexus L2 L3 L4
The obturator nerve arises from which part of the spinal cord
Lumbar plexus L2 L3 L4
This nerve appears below the piriformis muscle?
Sciatic Nerve
The sciatic nerve arises from which part of the spinal cord?
Sacral Plexus L4 L5 S1 S2 S3
The femoral sheath is composed of which fascia anteriorly and posteriorly?
Anterior - fascia transversalis
Posterior - fascia iliaca
The femoral sheath surrounds vessels and lymphatics. How are they arranged from lateral to medial?
Artery, Vein, Nerve
Compare and contrast biceps femoris long and short head in terms of OIAN
Origin and Insertion
Long - Ischial tuberosity to head of fibula,
Short - linea aspera and lateral supracondylar ridge of shaft of femur to head of fibula
Action
Both - Flexes and laterally rotates leg at knee
Long - extend thigh at hip
Innervation
Long - tibial portion of sciatic
Short - common peroneal portion of sciatic
Actions of the sartorius muscle?
Hip - flexion, abduction, lateral rotation of thigh
Knee - Flexion, medial rotation of leg
Which thigh flexor also adducts the thigh?
Pectineus
Where should you inject medications in the gluteus maximus in order to avoid sciatic nerve injury?
Upper Outer Quadrant
This muscle extends the thigh when standing up from the sitting position
Gluteus maximus
What muscle flexes the thigh on the trunk, and if thigh is fixed, it flexes the trunk on the thigh as in sitting up from lying down?
Psoas
Lateral and medial border of femoral triangle
Lateral - sartorius
Medial - adductor longus
What ligament prevents the dislocation of the femur posteriorly at the knee joint?
Anterior cruciate
What ligament prevents the dislocation of the femur anteriorly at the knee joint?
Posterior cruciate
What ligament is firmly attached to the edge of the medial meniscus?
Medial collateral
Forced abduction of the tibia on the femur can result in partial tearing of which ligament?
Medial collateral
What is the only tarsal bone which articulates with the tibia and fibula at the ankle joint?
Talus
The tuberosity of what bone can be felt on the medial border of the foot 2.5 cm in front and below the medial malleolus?
Navicular
A deep groove in the inferior aspect of this bone holds the tendon of the peroneus longus muscle.
Cuboid
The wedge shape of this bone contributes greatly to the formation and maintenance of the transverse arch of the foot?
Cuneiform
This arch of the foot consists of the bases of the metatarsal bones, the cuboid, and the three cuneiform bones?
Transverse arch
This arch of the foot consists of the calcaneum, talus, navicular, three cuneiform bones, and the first three metatarsal bones?
Medial longitudinal arch
This arch of the foot consists of the calcaneum, cuboid, and the fourth and fifth metatarsal bones?
Lateral longitudinal arch
Which group of muscles forms the first layer of the foot?
Abductor hallucis,
flexor digitorum brevis, abductor digiti minimi
Which group of muscles forms the second layer of the foot?
Quadratus plantae,
lumbricals,
flexor digitorum longus tendon,
flexor hallucis longus tendon
Which group of muscles forms the third layer of the the foot?
Flexor hallucis brevis,
adductor hallucis,
flexor digiti minimi brevis
Which group of muscles forms the fourth layer of the foot?
Interossei,
peroneus longus tendon,
tibialis posterior tendon
The dorsalis pedis artery is a terminal branch of what larger artery?
Anterior tibial artery
The pulsations of the dorsalis pedis artery can be felt between the tendons of which two muscles?
Extensor hallucis longus and Extensor digitorum longus