Nerves of the Lower Limb Flashcards
Describe features of the lumbar plexus
Describe the travel of the femoral nerve, its roots and the branches.
What is the sensory innervation supply by the femoral nerve
Hip joint
Knee joint
Skin on anterior surface of thigh
Skin on medial leg and foot (by saphenous vein).
Describe the motor innervation of the femoral nerve
Illiacus and muscles within the anterior compartment of the thigh (Quadricepts femoris, sartorius and pectineus)
Describe features of the saphenous nerve
What is the sensory supple of the saphenous nerve and its roots
Roots = L3-L4.
Supplies = Skin on medial surface of knee and anteromedial surface of leg and medial malleolus
Describe the sensory innervation of the obturator nerve and its roots
Roots = L2-4.
Inntervation;
- Hip joint, knee joint and upper half of medial thigh
Describe the motor innervation of the obturator nerve
Describe features of the sacral plexus
Has roots L4-S4. Located on surface of posterior pelvic wall, deep to piriformis muscle
Name the two gluteal nerves
Superior gluteal nerve and the inferior gluteal nerve
Describe the features of the superior gluteal nerve
- Roots are L4-S1
- Exits pelvis through suprapiriform space
- Runs laterally between the gluteus medius and minimus
- Supplies gluteus medius, gluteal minimus and tensor fasciae latae
Describe the features of the inferior gluteal nerve
- Roots L5-S2
- Exits pelvis through infrapiriform space and innervates gluteal maximus
Describe features of the sciatic nerve
Where should intragluteal injections be preformed and why?
In the superiolateral quadrant of the buttock as this is away from the majority of the neuromuscular structures
What is the sensory and motor innervation of the sciatic nerve
What are the nerves in each compartment of the leg (remember leg is not thigh!)
Lateral compartment - Superficial fibular nerve
Anterior compartment - Deep fibular nerve
Posterior compartment - Tibial nerve
Describe features of the tibial nerve
What is the sensory function of the tibial nerve?
Ankle joint and skin of the heal
What is the motor function of the tibial nerve
Describe features of the medial plantar nerve (sensory and motor supply)
Describe features of the lateral plantar nerve (sensory and motor supply)
Describe some features of the common fibular (peroneal) nerve
Describe features of the sural nerve
What is the sensory innervation of the deep fibular nerve and what are its root
Roots = L4-5
Ankle join and web space between the 1st and 2nd toes
What is the motor innervation of the deep fibular nerve
What is the sensory innervation from the superficial fibular nerve and what are its roots
Roots = L5-S2
Sensory innervation - Ankle joint, skin on anterior distal leg, skin on dorsum of foot.
What are the features of Obturator nerve
