The Sartorius | Structure, Origin, Insertion, Action, and Innervation

The video tutorial explores the anatomy and functions of the quadriceps and sartorius muscles. It details the structure, attachments, and actions of the sartorius muscle, highlighting its role in the femoral triangle and its unique movements at the hip and knee. The sartorius is described as the Faber muscle due to its ability to facilitate flexion, abduction, and external rotation at the hip. Additionally, its minor role in knee movements is discussed, along with its anatomical nickname, the seat belt muscle.

Which muscle group is primarily responsible for knee extension?

• Hamstrings

• Quadriceps

• Adductors

• Gluteals

What is the longest muscle in the human body?

• Rectus Femoris

• Vastus Lateralis

• Sartorius

• Gracilis

Which structure forms the lateral boundary of the femoral triangle?

• Vastus Medialis

• Sartorius

• Adductor Longus

• Inguinal Ligament

What is the common tendon shared by the sartorius, semitendinosus, and gracilis muscles?

• Achilles Tendon

• Iliotibial Band

• Patellar Tendon

• PES Anserine Tendon

Which nerve innervates the sartorius muscle?

• Femoral Nerve

• Obturator Nerve

• Sciatic Nerve

• Tibial Nerve

What does the acronym FABER stand for in relation to the sartorius muscle?

• Extension, Adduction, Internal Rotation

• Extension, Abduction, External Rotation

• Flexion, Adduction, Internal Rotation

• Flexion, Abduction, External Rotation

What is the sartorius muscle sometimes referred to as due to its path across the thigh?

• Belt Muscle

• Seat Belt Muscle

• Diagonal Muscle

• Cross Muscle