Lower Extremity Anatomy 1 (Anterior Thigh Muscles) Exam 2026 Questions and Answers

Lower Extremity Anatomy 1 (Anterior
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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