Quiz 6 Flashcards
what is the longest muscle in the body?
Sartorius
What aer the actions of the sartorius muscle?
- flexion of the hip joint and elbow joint (functions when both are carried out at the same time)
- abducts the femur
- medially rotates the leg
what path does the sartorius take down the leg?
It passes obliquely downard and medial across he anterior aspect of the thigh
What is the nerve supply of the sartorius?
Femoral nerve (L2, L3, L4)
What muscles make up the quadriceps?
Rectus Femoris
Vastus Medialis
Vastus Lateralis
Vastus Intermedius
What is the most superficial muscle of the quadriceps?
Rectus Femoris
What group of muscles occupies the anterior aspect of the femur?
Quadriceps
Where do the quadricep muscles insert?
Base of the patella
What is the portion of the tenon of insertion that runs from the apex of the patella to the tibia called?
Patellar ligament
What is the origin of the rectus femoris?
Anterior Inferior Iliac Spine
Acetabulum/pelvic bone
What is the largest muscle of the quadricep muscles?
Vastus Lateralis
Where is the Vastus Medialis located?
Situated on the anterior aspect of the thigh
What muscle lies deep to the superficial quadricep muscles and covers most of the anterior aspect ofthe femur?
Vastus Intermedialis
What action would a patient with atrophy of the quadriceps have difficuty doing?
Difficulty extending the leg against resistance.
They will press on the distal end of the femur during walking to prevent flexion from occurring at the kneejoint.
T/F The strength of the knee is significantly dependent on the quadriceps. Why or why not?
True.
Tonus of the muscles play a role in strengthening the knee joint (action)
