Learn to Draw the Sacral Plexus!

The video tutorial provides a comprehensive guide to understanding the sacral plexus and its associated nerve roots. It introduces a method to memorize the nerve roots by arranging them in columns and using the acronym SIPS to remember the main nerves. Additional nerves are covered using the mnemonic 'pint of queso'. The tutorial also explains the innervation of deep gluteal muscles, emphasizing the logical grouping of muscles and their corresponding nerves.

What is the range of nerve roots that make up the sacral plexus?

• L1 to S1

• L4 to S3

• L2 to S4

• L5 to S2

Which nerve is represented by the first 'S' in the acronym SIPS?

• Saphenous

• Sural

• Superior gluteal

• Sciatic

How are the posterior femoral cutaneous and pudendal nerves ordered?

• Alphabetically

• By function

• By size

• By location

What does the 'P' in 'sips a pint of queso' stand for?

• Peroneal nerve

• Pudendal nerve

• Nerve to piriformis

• Posterior femoral cutaneous nerve

Which nerve shares the same roots as the inferior gluteal nerve?

• Nerve to piriformis

• Nerve to obturator internus

• Sciatic nerve

• Nerve to quadratus femoris

What is the mnemonic used to remember the additional nerves in the sacral plexus?

• Sips a cup of coffee

• Sips a glass of water

• Sips a pint of queso

• Sips a bottle of soda

Which muscle is innervated by the nerve to piriformis?

• Superior gemellus

• Obturator internus

• Quadratus femoris

• Piriformis

Which two muscles are innervated by the nerve to obturator internus?

• Obturator externus and superior gemellus

• Superior gemellus and obturator internus

• Piriformis and quadratus femoris

• Inferior gemellus and quadratus femoris

What is the nerve root range for the nerve to quadratus femoris?

• S1 to S3

• L5 to S2

• L4 to S1

• S2 to S4

Which nerve innervates both quadratus femoris and inferior gemellus?

• Nerve to obturator internus

• Nerve to quadratus femoris

• Sciatic nerve

• Nerve to piriformis