anatomy quesmed

Question 1

one nerve of the lumbar plexus has no motor function
what are its spinal roots

Answer 1

L2 L3

it is the lateral cutaneous nerve of the thigh that has no motor function

Question 2

tibial nerve :
nerve roots
division
what does it innervate

Answer 2

L4 - S3
sciatic nerve , superior to the popliteal fossa

posterior leg -
plantaris
soleus
gastrocnemius
popliteus
biceps femoris

muscles of foot-
flexor digitorum longus
tibialis posterior
flexor hallucis longus

Question 3

where are the interossei muscles found in the foot

Answer 3

fourth layer on the plantar aspect

Question 4

what structure attaches to the lesser trochanter of the femur

Answer 4

iliopsoas
(made up of two muscles: iliacus and psoas major
and these attach to lesser trochanter as a single tendon
act to flex the leg at the hip)