Musculus quadriceps femoris

The video tutorial explores the quadriceps femoris muscle, detailing its four heads: rectus femoris, vastus medialis, vastus lateralis, and vastus intermedius. It covers their origins, attachments, and functions, emphasizing their role in knee extension and stability. The quadriceps tendon and nerve innovation via the femoral nerve are also discussed, highlighting the muscle's importance in movements like walking and standing.

What is the primary function of the quadriceps femoris muscle?

• Flexion of the ankle joint

• Extension of the knee joint

• Rotation of the hip joint

• Flexion of the knee joint

Where does the rectus femoris muscle originate?

• On the lateral condyle of the tibia

• On the hip bone and acetabulum

• On the tibial tuberosity

• On the femoral shaft

Which muscle spirals around the femoral shaft to attach distally?

• Rectus femoris

• Vastus medialis

• Vastus lateralis

• Vastus intermedius

What is the origin of the vastus lateralis muscle?

• Supra acetabularia sulcus

• Spinelli field anterior inferior

• Intertrochanterica line

• Line Aspera and trochanter Major

Which muscle is sometimes considered the fifth head of the quadriceps?

• Articularis genus

• Rectus femoris

• Vastus lateralis

• Vastus medialis

Through which nerve does the quadriceps femoris receive innervation?

• Sciatic nerve

• Femoral nerve

• Obturator nerve

• Tibial nerve

What role does the vastus medialis play in knee movement?

• Extension

• Internal rotation

• External rotation

• Flexion