The Nerve And Arterial Supply To The Lower Limb Flashcards
Where does the spinal cord terminate?
Conus Medullaris
What are the names of the roots from which the peripheral spinal nerve emerges from the spinal cord?
Ventral and dorsal root
What does the dorsal root of the spinal cord do?
Carries sensory information to the spinal cord
What does the dorsal root ganglia contain?
Sensory cell bodies
What does the ventral root of the spinal cord do?
Carries motor information from the anterior horn cells
What is a dermatome?
An area of the skin supplied by a single spinal nerve or spinal cord level
Describe the position of the Inguinal tunnel
Between deep to inguinal ligament and anterior aspect of pelvis and acetabulum
Name 2 nerves that exit via the inguinal tunnel
Lateral cutaneous nerve of thigh
Femoral nerve
Name the main branches of the limbo-sacral plexus
Femoral nerve
Obturator nerve
Sciatic nerve
Superficial and inferior gluteal nerve
Where do the Lumbar Plexus lay?
Within the posterior part of Psoas Major
What does the Lumbar Plexus supply?
The abdominal wall and lower extremities
Name the branches of the Lumbar plexus
Muscular branches
Femoral nerve (L2, 3, 4)
Obturator nerve (L2, 3, 4)
Ilio-hypogastric
Ilio-inguinal
Gntiofemoral
Lateral cutaneous nerve of thigh
What does the femoral nerve supply in the pelvis?
Illiacus
Pectineus
What does the femoral nerve supply in its anterior branch?
Sartorius
Intermediate cutaneous nerve of thigh
Medial cutaneous nerve of thigh
What does the femoral nerve supply in its posterior branch?
Saphenous nerve
Quadriceps
Where does the Obturator nerve originate?
Ventral branches of L2 - L4
Where does the Obturator nerve exit the pelvis via?
Obturator Foramen
What does the Obturator nerve supply?
Adductor Magnus
Adduction Longus
Adductor Brevis
Gracilis
Pectineus
Obturator Externus
Medial side of thigh
Knee and hip joint