Femoral triangle

Question 1

Why are pennate muscles more powerful than parallel muscles?

Answer 1

In a pennate muscle, the fascicles form a common angle with the tendon. Because the muscle cells pull at an angle, contracting pennate muscles do not move their tendons as far as parallel muscles do. But a pennate muscle contains more muscle fibers–and, as a result, produces more tension–than does a parallel muscle of the same size. (Tension production is proportional to the number of contracting sarcomeres; the more muscle fibers, the more myofibrils and sarcomeres

Question 2

What is in the femoral sheath?

Answer 2

Lateral (femoral artery)

Intermediate (femoral vein)

Medial (femoral canal)

*Does NOT contain the femoral nerve!
(NAVI)

Question 3

Which lever is most common?

Answer 3

3rd class

Question 4

Femoral nerve- which vertebra?

Answer 4

L2-L4

Largest branch of lumbar plexus