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level: Level 1

Questions and Answers List

level questions: Level 1

QuestionAnswer
(T12) L1-L4 muscles/skin of pelvic girdle abdominal muscles muscles/skin of free lower limbWhat is lumbar plexus made of and what is it innervating?
psoas major m.What muscle is lumbar plexus related to?
iliacus (femoral n.) psoas major psoas minor quadratus lumborumWhat are the short branches of lumbar supplying?
iliohypogastric n. genitofemoral n. ilioinguinal n.What branches of lumbar plexus supply abdominal muscles and skin over pelvic girdle?
genitofemoral n.What nerve pierces psoas major m.?
iliohypogastric ilioinguinalWhat nerves emerge lateral to psoas major m.?
cremaster m.What is motor branch of genitofemoral n. supplying?
internal oblique m. transverse abdominis m.What is motor branch of iliohypogastric n. supplying?
internal oblique transverse abdominisWhat is motor branch of ilioinguinal n. supplying?
skin above inguinal lig. skin of perineum skin of external genitalsSkin of what area is ilioinguinal and iliohypogastric nn. supplying?
lateral femoral cutaneous n. (lateral to psoas major) femoral n. (lateral to psoas major) obturator n. (medial to psoas major)What branches of lumbar plexus supply lower limb?
through inguinal lig. anterolateral skin of thighHow is the lateral cutaneous n. entering the thigh an what dose it supply?
behing inguinal lig. lateral to femoral a. enters femoral triangleHow is the femoral n. entering thigh?
iliacus pectineus quadriceps femoris sartoriusWhat is the motor branches of femoral n. supplying?
saphenous n. -medial hip joint -medial thigh -medial knee joint -medial calf -medial heelWhat is the purely sensory branch of femoral n. and what dose it supply?
anterior and lateral thighThe anterior femoral cutaneous branch supplies what?
tap on tendon receptor in muscles gets the sygnal sensory neuron transmits sygnal to spinal cord synaps in spinal cord somatic motor neuron to quadriceps and interneuron inhibiting somatic motor neuron hamstring muscle relaxed and quadriceps contractsDescribe patellar reflex
obturator canalHow is the obturator nerve entering thigh?
skin of medial thigh obturator externus adductor longus, magnus, brevis gracilis pectineusWhat is obturator n. innervating?
ventral rami L4-S5, Co1 gluteal region perineum thighWhat is the sacral plexus composed of and what dose it innervate?
ventral rami of L4-5 spinal nn. ends at superior border of piriformisWhat ventral rami form lumbosacral trunk?
superior gluteal n. inferior gluteal n. spinal n. S1-2 to piriformis nerves to obturator internus superior gemellus inferior gemellus quadratus femorisWhat are the short branches of sacral plexus?
pelvic diaphragm perineum external genitals skin of those areasWhat is pudendal n. supplying?
sacrospinous lig.On what ligament can we find pudendal n?
skin of buttocks (gives a branch, inferior cluneal n.) skin of posterior thighPosterior femoral cutaneous n. innervate what?
greater sciatic foramen under piriformis m. passes between ischil tuberosity and greater trochanterDescribe topography of proximal sciatic n.
L4-S3 common fibular n. (pos.div) tibial n. (ant.div)What spinal nerves make sciatic n. and what nerves dose it divide to?
descends superficially through popliteal fossa enters posterior compartment of leg terminates as medial and lateral plantar nn.Describe topography of tibial n.
gives of medial sural cutaneous nerve that become one nerve with lateral sural cutaneous n., sural n. supply posterior leg, sole of footDescribe sensory division of tibial n.
superolateral in popliteal fossa related to neck of fibula gives of lateral sural cutaneous n. divides into deep and superficial fibular (peroneal) n.Describe topography of common fibular (peroneal) n.
enters anterior leg compartment terminates as cutaneous branch enters lateral leg compartmentDescrine topography of deep and superficial fibular (peroneal) nn.
deep: muscles of anterior compartment of leg superficial: muscles of lateral compartment of legWhat is deep and superficial nn. supplying?