Quadriceps

Question 1

Rectus Femoris

Answer 1

Muscle found on anterior portion of Femur.
only quad to cross hip joint

Proximal Attch: AIIS, superior to acetabular rim

Distal Attch: tibial tuberosity via patellar ligament

Action: hip flexion
knee extension

Fiber direction: bipennate

Palpation/ Activate:

Question 2

vastus lateralis

Answer 2

Muscle found on anterior portion of Femur - lateral side

Proximal Attch: linea aspera (lateral lip)

Distal Attch: tibial tuberosity via patellar ligament

Action: knee extension

Fiber direction: vertical

Palpation/ Activate:

Question 3

vastus medialis

Answer 3

Muscle found on anterior portion of Femur - medial side

Proximal Attch: linea aspera (medial lip)

Distal Attch: tibial tuberosity via patellar ligament

Action: knee extension

Fiber direction: vertical

Palpation/ Activate: palpate VMO

Question 4

vastus medialis obliquus

Answer 4

Proximal Attch: medial distal femur,vastus medialis,
adductor magnus

Distal Attch: medial patella
Action: pulls patella medially

Fiber direction: vertical
Palpation/ Activate: palpate VMO