Sartorius muscle (3D)

The video tutorial explores the sartorius muscle, detailing its anatomy, innervation, and functions. It covers the muscle's origin at the anterior superior iliac spine and insertion at the Pez Anserinus. The tutorial explains the sartorius muscle's role in hip joint movements like flexion, abduction, and external rotation, as well as knee joint movements such as flexion and internal rotation. The video highlights the muscle's unique characteristics and its contribution to lower limb mobility.

What nerve is responsible for the innervation of the Sartorius muscle?

• Tibial nerve

• Femoral nerve

• Sciatic nerve

• Obturator nerve

Which movement at the hip joint involves the Sartorius muscle bringing the thigh towards the front of the body?

• Internal rotation

• Flexion

• Extension

• Abduction

How does the Sartorius muscle contribute to movement at the hip joint?

• Extension, abduction, and internal rotation

• Flexion, abduction, and external rotation

• Extension, adduction, and external rotation

• Flexion, abduction, and internal rotation

What is the primary movement of the Sartorius muscle at the knee joint?

• Adduction

• Extension

• Flexion

• Abduction

Why is internal rotation of the knee stronger when it is flexed?

• The Sartorius muscle is more relaxed

• The patella provides additional leverage

• The angle between the femur and tibia is reduced

• The angle between the head of the tibia and the insertion tendon is nearly 90 degrees