Nerve supply of muscles/motor supply Flashcards
Where does the tibial nerve arise?
Sciatic nerve.
Where does the tibial nerve exit through?
Popliteal fossa.
What are the branches of the tibial nerve?
- Sural nerve.
- Calcaneal nerve.
- Medial + lateral plantar nerves.
What muscles does the tibial nerve supply?
- Plantaris.
- Gastrocnemius.
- Popliteus.
- Soleus.
- Tibialis Posterior.
- Flexor Digitorum Longus.
- Flexor Hallucis Longus.
What muscles does the medial plantar branch of the tibial nerve supply?
- Flexor digitorium brevis.
- Abductor hallucis.
- Flexor hallucis brevis.
- Lumbrical 1.
What muscles does the lateral plantar branch of the tibial nerve supply?
- Abductor Digiti Minimi.
- Flexor Digiti Minimi.
- Quadratus Plantae.
- Adductor Hallucis.
- Plantar Interossei.
- Dorsal Interossei.
- Lumbrical 2,3,4.
Where does the common fibular nerve arise?
Sciatic nerve.
Where does the common fibular nerve exit through?
Popliteal fossa.
What are the branches of the common fibula nerve?
- Sural nerve.
- Lateral sural nerve.
What muscle does the common fibular nerve supply?
Short head of bicep femoris.
Where does the sciatic nerve arise from?
Sacral plexus.
Where does the sciatic nerve exit through?
- Greater sciatic foramen.
- Under piriformis.
What muscles does the tibial branch of the sciatic nerve supply?
- Semimembranosus.
- Semitendinosus.
- Long head of bicep femoris.
What muscle does the common fibular branch of the sciatic nerve supply?
Short head of bicep femoris.
Describe the pathway of the sciatic nerve.
- Travels between lateral rotators + gluteus Maximus.
- Halfway between the ischial tuberosity + greater trochanter.
- Continues between the hamstrings + adductor magnus.
What is the sciatic nerve comprised of?
- Tibial nerve.
- Common fibular nerve.
Where do the tibial and common fibular nerves separate from the sciatic nerve?
At the popliteal fossa.
Where does the deep fibular nerve arise from?
The common fibular nerve.
What does the deep fibular nerve exit through?
Deep to fibularis longus.