LE Muscles Flashcards
Hamstrings Innervation
Sciatic N - Tibial division (L4-S3)
*exception Biceps Femoris Short Head (Common Fibular Nerve)
Biceps Femoris Short head Innvervation
Common Fibular Nerve (sciatic nerve {L4-S2}, Fibular division)
Where does the sciatic nerve emerge?
Inferior to border of
piriformis. Variations are common.
What does the sciatic nerve split into and where does the split occur?
Splits into tibial nerve and common fibular nerve - in the popliteal space or superior to the popliteal space
where does the popliteal artery emerge from and what does it bifurcate into?
emerges from the adductor hiatus until it bifurcates into anterior and posterior tibial arteries
What is another name for the fibular artery
peroneal artery
What artery does the tibial nerve run with
posterior tibial artery
what nerve does the posterior tibial artery run with
tibial nerve
what muscle is largely responsible for maintaining erect (standing) position? Also important for venous blood return
Soleus
what is the pit in the head of the femur and what is the ligament that connects there called?
fovea capitis
ligamentum teres femoris`
Lumbar plexus innervation segments
t12-L4
Obturator N segments
L2-L4
Obturator N cutaneous innervation
medial thigh
Obturator N Innervation
medial thigh (gracilus, adductor longus, adductor brevis, adductor portion of adductor magnus)
Pectineus (1/3)
Femoral N segments
L2-L4
Femoral N cutaneous innervation
anterior and lateral thigh
medial leg
Femoral N innervation
anterior thigh (sartorius, rectus femoris, vastus lateralis, vastus medialis, vastus intermedius)
Pectineus (2/3)
Iliacus
Sacral Plexus segements and cutaneous innervation
L4-S3
posterior thigh and lateral leg and sole
Tibial N segments
L4-S3
Tibial N innervation and cutaneous innervation
posterior leg
sole
Sciatic N tibial division innervation
posterior thigh
hamstring portion of adductor magnus
sciatic nerve fibular division innervation
biceps femoris SH
Common Fibular segements
L4-S2
Superficial fibular nerve innervation and cutaneous
lateral leg
lateral leg, dorsal foot minus btw big toe and 2nd digit
deep fibular nerve innervation and cutaneous
anterior leg
btw big toe and 2nd digit