18 Questions
Which nerve is the largest in the body?
Sciatic nerve
What is the origin of the sciatic nerve?
From the sacral plexus
Which muscle does the sciatic nerve pass below?
Piriformis muscle
What is the effect of injury to the sciatic nerve?
Loss of sensation in the leg and foot
Which branch of the sciatic nerve gives rise to the tibial nerve?
Fibular part
What condition is characterized by pain radiating along the path of the sciatic nerve?
Sciatica
Which muscles are supplied by the muscular branches of the sciatic nerve?
Muscles in the posterior compartment of the thigh
What is the sensory effect of sciatic nerve injury below the knee?
Loss of sensation on the medial side of the leg
Where does the tibial nerve originate from?
Sciatic nerve
What causes sciatica?
Pressure on a nerve root
Where does the sciatic nerve terminate?
Middle of back of the thigh
Why are intramuscular injections given only in the upper lateral quadrant of the gluteal region?
To avoid damaging the sciatic nerve
Which nerve supplies the piriformis muscle?
Sciatic nerve
Which muscle is NOT one of the six lateral rotators of the hip joint?
Sartorius
The obturator internus muscle originates from which of the following anatomical structures?
Pelvic surface of the obturator membrane
Which muscle is supplied by the nerve to quadratus femoris?
Quadratus femoris
Which muscle has its insertion on the tip of the greater trochanter?
Obturator internus
The sciatic nerve branches from which part of the sacral plexus?
S1, S2
Test your knowledge on the anatomy, branches, and effects of injury of the sciatic nerve. Learn about its termination, branches, and the motor effects associated with sciatic nerve injuries.
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