Quadriceps femoris, patellar stability, adductor canal (dave's notes)

Question 1

What is the origin and insertion of rectus femoris?

Answer 1

Origin: Straight head from anterior inferior iliac spine, reflected head from ilium above acetabulum.
Insertion: Quadricepts tendon to patella

Question 2

What is the origin and insertion of vastus lateralis?

Answer 2

Origin: Upper trochanteric line, base of the trochanter, lateral linea aspera, lateral supracondylar ridge and LIMS
Insertion: Lateral quadriceps tendon to patella

Question 3

What is the origin and insertion of vastus intermedius?

Answer 3

Origin: Anterior and lateral shaft of femur to a nad bredth above teh condyles
Insertion: same as vastus lateralis

Question 4

What is the origin and insertion of vastus medialis?

Answer 4

Origin: Lower intertrochanteric line, spiral line, medial linea aspera and MIMS
Insertion: Medial side of quadriceps tendon to patella

Question 5

What is the action and innervation of vastus lateralis?

Answer 5

Extends the knee

Nerve is the deep branch of the femoral nerve, being the posterior division of the anterior rami

Question 6

What is the action and innervation of rectus femoris?

Answer 6

Extends teh leg at the knee and flexes the thigh at the hip

Innervation: Deep branch of the femoral nerve being the posterior division of the anterior rami

Question 7

What is the action and innervation of vastus intermedius and vastus medialis?

Answer 7

Extends the knee

Innervation is the deep branch of the femoral nerve being the posterior division of the anterior rami

Question 8

Describe the quadriceps tendon

Answer 8

Trilaminar, lateralis lies between vastus intermedius and rectus femoris

Question 9

What are the attachments of the patellar ligament?

Answer 9

Connects teh lower border of the patella with the smooth convexity of the tibial tuberosity.

Question 10

What are the patellar retinacula?

Answer 10

Fibrous expansions which connect the sides of the patella with the lower margins of the condyles of the tibia

Question 11

What direction does quadriceps femoris pull the patella in? How is this compensated for? (list 3 factors)

Answer 11

QF tends to pull the patella laterally. This is compensated for by
-Forward prominence of the lateral condyle -> bony factor

• Medial patellar retinaculum -> ligamentous factor
• Insertion of VM -> muscular factor

Question 12

Where is the adductor canal?

Answer 12

A gutter shaped groove between vastus medialis and the front of the adductor muscles. Roofed by fascia.

Question 13

What is the content of the adductor canal?

Answer 13

The femoral artery, vein, and sapenous nerve.

Question 14

What lies on the fascial roof of the adductor canal?

Answer 14

Sartorius

Question 15

How do the femoral vessels leave the adductor canal?

Answer 15

By passing into the popliteal fossa between hamstring and adductor parts of adductor magnus muscle.

Question 16

How are the vessels and nerves related to one another in the adductor canal?

Answer 16

The veins spiral around the artery until it lies laterally (as does the nerve, in keeping with rotation). At all levels in the thigh the artery lies between the saphenous nerve and vein.