Thigh Muscles) Exam 2026 Questions and
Answers
What is the origin and insertion of the Psoas Major? - Correct answer-O: TP of
lumbar vertebrae, Vertebral bodies and disc T12-L5
I: lesser trochanter of femur
What is the function of Psoas major - Correct answer-Flex thigh and trunk,
stablizes lumbar spine
What is the nerve and blood supply of psoas major? - Correct answer-N: ventral
rami L1-L4
B: muscular branches of iliac arteries and lumbar arteries
What is the origin and insertion of Iliacus? - Correct answer-O: upper 2/3 iliac
fossa, internal lip of iliac crest, ala of sacrum, anterior sacroiliac ligaments,
iliolumbar ligament
I: psoas major tendon and lesser trachanter
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, What is the function of Iliacus? - Correct answer-Flex thigh and trunk, stablizes
lumbar spine
What is the nerve and blood supply to Iliacus? - Correct answer-N: Femoral (l2-
L4)
B: muscular branches of iliac arteries and lumbar arteries
What is the origin and insertion for Sartorius? - Correct answer-O: ASIS
I: Medial aspect of proximal tibia
What is the function of Sartorius? - Correct answer-flex, abduct and lateral rotate
thigh (hip), flex the leg (knee)
What is the nerve and blood supply to Sartorius? - Correct answer-N: femoral
nerve
B: femoral artery
What is the nerve innervation to quadriceps? - Correct answer-Posterior division of
femoral nerve
What is the origin and insertion of Rectus femoris? - Correct answer-O: straight
head-AIIS reflected head-Ilium rim of acetabulum
I: base of patella and tibial tuberosity
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