Anatomy(Lower Limb) Flashcards
Blood supply of sciatic nerve
Inferior gluteal artery
Along with foot drop sciatic nerve injury may cause what motor defect
Weak knee flexion
(Can be done with sartorius and gracilis)
Nerve of long and short head of biceps femoris
Long-tibial
Short -common Peroneal
Which nerve emerges from the medial border of psoas
Obturator L234
Nerve of adductor magnus
Obturator nerve
(Not the lower part-sciatic nerve)
Palpation of common Peroneal nerve
POSTERIOR to head of fibula
Location of terminal branching of common Peroneal nerve
Neck of fibula
Nerve supply of sartorius
Superficial (anterior) branch of femoral nerve
Longest strap muscle of body
Sartorius
In which canal lies nerve to vastus medialis
Adductor canal
Insertion of psoas major
Lesser trochanter
Nerve most prone to injure during TURP
Obturator
Nerve most prone to injure during TURP
Obturator
Location of obturator nerve in lesser pelvis
Lateral to internal iliac vessels and ureter
Cutaneous supply of obturator nerve
Distal 2/3 of medial thigh
Contents of popleteal fossa
From medial to lateral
Popleteal Artery
Popleteal vein
Tibial nerve
Commonly Peroneal nerve
Origin of superior Gluteal artery
Posteriorly trunk of
Internal iliac artery
Origin of inferior gluteal artery
Anterior trunk of internal iliac artery
Nerve to tensor fascia lata
Superior gluteal L45S1
What is Trendelenburg Sign and cause
Injury to the superior gluteal nerve
Trendelenburg Sign is described as a dipping of the pelvis toward the contralateral side. Because the lesioned abductors cannot maintain the pelvis in a level plane, the patient “falls” toward the good side and simultaneously leans the torso toward the lesioned side to maintain balance.
Location of base of metatarsal
Proximal expansion
Nerve supply of intrinsic muscles of foot
Apart from extensor digitorum brevis and first 2 dorsal interossei
All are supplied by branches of TIBIAL nerve
Terminal branches of TIBIAL nerve
Medial and lateral planter nerve
Nerve of extensor digitorum brevis of foot
Deep peroneal nerve
Nerve to first 2 dorsal interossei of foot
Deep peroneal
Muscles in dorsal layer of foot
Only one
Extensor digitorum brevis
Origin and insertion of extensor digitorum brevis with their number
Origin - superolaterally on calcaneus
Insertion- first one on base of proximal phalanx
Other 3 on lateral side of TENDONS of extensor digitorum longus
Function and innervation of extensor digitorum brevis of foot
Extension of MTP joint
Innervated by deep peroneal nerve
Layers of planter group of intrinsic muscles of foot
4 layers
Muscles of first planter muscle groups
3
Flexor digitorum brevis
Abductor hallucis
Abductor digiti minimi
Origin,insertion, function & innervation of flexor digitorum brevis
Origin -medial process of calcaneum
Insertion- on sides of middle phalanx of lateral 4 digits
Function-flexion of PIP joint
Innervation- medial plantar nerve
Origin,insertion, function & innervation of abductor hallucis
Origin-Medial process of calcaneal tuberosity
Insertion- Medial side of base of proximal phalanx of great toe
Function- abductor and flexion of MTP joint
Innervation- medial plantar nerve,
Origin,insertion, function & innervation of abductor digiti minimi
Origin -lateral and medial(by extending) tuberosity of calcaneus
Insertion- Lateral to hear of proximal phalanx of little toe
Function - abduction of little toe
Innervation- lateral planter nerve
Origin,insertion, function & innervation of quadratus panatae
Origin- 2 heads from medial and lateral Calcaneal tuberosity
Insertion -lateral side on tendon of flexor digitorum longus
Function - helps FDL tendons
Innervation -lateral planter nerve
Origin,insertion, function & innervation of lumbricals of foot
Origin-1st one is unipenete other 3 are bipenete arising from tendons of flexor digitorum longus
Insertion - extensor hood of lateral 4 digits
Function- flexion of MTP joints extension of IP joints
Innervation - 1st one by medial and other 3 by lateral planter nerve
Muscles in 2nd layer of planter muscle
2 muscles
Quadratus plantae
4 lumbricals
Muscles of 3rd layer of planter muscle
3 muscles (associated with little toe and big toe)
Flexor digiti minimi brevis
Flexor hallucis brevis
Adductor hallucis
Origin,insertion, function & innervation of flexor hallucis brevis
Lies deep to tendon of flexor hallucis longus
It has two origins and two insertions
Origin -one from cuboid another from tendon of tibialis posterior
Insertion - metal and lateral sides of base of proximal phalanx of great toe
Function-flexion MTP joint of big toe
Innervation -medial plantar nerve
Origin,insertion, function & innervation of flexor hallucis
Has 2 heads- transverse and oblique
Origin- transverse from deep transverse metatarsal ligament and planter ligaments of lateral 3 toes
Origin of oblique head from bases of 234 metatarsals and from tendon of peroneus Longus
Insertion - base of proximal phalanx of big toe
Function- adduction of great toe at MTP joint
Innervation -lateral plantar nerve
Origin,insertion, function & innervation of flexor digiti minimi brevis
Smallest flexor of smallest toe
Origin -base of fifth metatarsal and tendon of peroneus Longus
Insertion - laterally on base of proximal phalanx of little toe
Function -flexion of little toe at MTP joint
Innervation - lateral plantar nerve
Groove on undersurface of cuboid bone for what
Tendon of peroneus Longus
Muscles in 4th layer of planter
Interosseous
3 palmar unipenete PAD
4 dorsal bipenete DAB
Origin,insertion, function & innervation of palmar interossei of foot
Originated from the same metatarsal of the acting toe
Origin- medial side of base of 345 metatarsals
Insertion- medial side ot base of proximal phalanx of 345 toes and also on the extensor expansion of these digits
Function- adduction of 345 toes
Innervation - lateral planter nerves
Origin,insertion, function & innervation of dorsal interossei of foot
They act on 234 toes
Origin -base of metatarsals of all intermetatarsal spaces
Insertion - 1st one on medial side of base of proximal phalanx of 2nd toe
2nd,3rd, 4th ones on lateral side of bases of proximal phalanx of 234 toes respectively
Function - abduction of 3rd 4th toes away from 2nd toe and 2nd toe can be abducted on either sides because of first two dorsal interossei
Innervation - first two by deep peroneal nerve, other two by lateral plantar nerve.
Relation of medial plantar artery and nerve
Artery passes forward medical to nerve
I’m a space between adductor hallucis and flexor digitorum brevis
The Artery ends by uniting with 1st plantar metatarsal artery
Relation of lateral plantar artery and nerve
Artery lies lateral to nerve
Continuation of dorsalis pedis artery
As 1st dorsal metatarsal artery
What muscle crosses the dorsalis pedis srtery
Extensor hallucis brevis
Extracapsular ligaments of hip joint
Iliofemoral
Pubofemoral
Ischiofemoral
Structures passing through greater and lesser sciatic foramina
Medial to lateral
PIN
pudendal nerve
internal pudendal artery
nerve to obturator internus
Passage of pudendal nerve after origin
Between Piriformis and coccygeus muscles
Counterpart of dorsal nerve of penis in female and origin
From pudendal nerve
Dorsal nerve it clitoris
Nerves passing through greater sciatic foramen
Sciatic
Superior gluteal
Inferior gluteal
Pudendal
Posterior femoral cutaneous
To obturator internus
To quadratus femoris
Vessels passing through greater sciatic foramen
Superior gluteal
Inferior gluteal
Internal pudendal
Which muscle divides greater sciatic foremen
Piriformis
Contents if lesser sciatic foramen
Pudendal nerve
Internal pudendal artery
Nerve to obturator internus
Tendon of obturator internus
Tributaries of great saphenous vein
Superficial epigastric
Superficial circumflex iliac
Superficial external pudendal
Medial marginal
Termination of small saphenous vein
Passes between heads of gastrocnemius and approximately at or above the level of the knee joint drains into the popleteal vein
sensory nerve on posterior thigh
PFCN+SCIATIC
The PFCN originates from the sacral plexus and its nerve roots are the first, second, and third sacral (S) nerve roots. The S2 nerve root is the main one.
The posterior femoral cutaneous nerve (PFCN) is the sensory nerve that provides sensation to the skin of the back of the thigh. It’s also known as the posterior cutaneous nerve of the thigh or the lesser sciatic nerve.
The PFCN’s sensory innervation includes:
The back of the thigh, including the popliteal fossa
The lower half of the buttock
The posterior part of the scrotum or labium majus
A variable area of the posterior calf
Nerve for knee extension
Femoral
Obturator
Location of origin of tibial and common peroneal nerve
Halfway down the posterior thigh
Or
Upper part of piolets fossa
Articular branch of sciatic nerve to which joint
Hip joint
Cuteneous supply of gluteal region
Sciatic
Other name of Trendelenburg gait and cause
Waddling gait
Caused by injury to superior Gluteal nerve
What does absent of foot drop with hip drop indicate
No polio
Or
No L5 radiculopathy
Difference of insertion of gluteus medius and minimus
Medius to lateral greater trochanter
Minimus to anterior greater trochanter
Injured superior gluteal nerve
Damage to superior Gluteal nerve will result in the patient developing as Trendelenburg gait. Affected patients are unable to abduct the thigh at hip joint. During the stance phase, the weakened abductor muscles allowe the pelvis to tilt down on the opposite side. To compensate, the truck lurches to the weakened side to attempt to maintain a leveled pelvis throughout the gait cycle. The pelvis sags on the opposite side of the lesioned superior gluteal nerve.
What part of iliopsoas lies behind the femoral nerve in Femoral triangle
Iliacus
Sheath anterior to iliacus and pectineus muscle
Femoral sheath
Thigh muscles supplied by femoral nerve
Quadriceps femoris
Sartorius
Pectineus
Muscle penetrated by femoral nerve
Psoas major
Insertion of iliofemoral ligament
Intertrochanteric line
Origin of iliofemoral ligament
Anterior inferior iliac spine
Insertion of pubofemoral ligament
Lesser trochanter
Insertion of ischiofemoral ligament
Greater trochanter
Blood supply of hip joint
Anterior and posterior circumflex femoral arteries from profunda femoris artery
Inferior gluteal artery
Root of lateral cuteneous nerve of thigh
L23
Relation of tibial nerve to posterior tibial artery
Nerve lies medial to artery for about 2.5 cm from its origin
Then nerve crosses artery posteriorly to lie on lateral side for the rest of their course
Origin of posterior tibial artery
Largest terminal branch of popliteal artery
Termination of posterior tibial artery
By dividing into medial and lateral plantar arteries
Accompanied vein of posterior tibial artery
Posterior tibial vein &
Peroneal vein
Muscles deep to posterior tibial artery
Tibialis posterior
Flexor digitorum longus
Superficial muscles to posterior tibial artery
Gastrocnemius and soleus
Muscles attached to greater trochanter
POGO
Location of quadrate tubercle
On intertrochanteric crest
Structure along medial border of tendon of biceps femoris in popliteal fossa
Common Peroneal nerve
Deepest structure of popliteal fossa
Popleteal artery
Relation of tibial nerve to popleteal vessels
Nerve lies lateral to vessels in fossa
Relation of tibial nerve to popliteal vessels
Nerve lies lateral to vessels in fossa then nerve passes posteriorly to lie medial to popleteal artery
In lower part it crosses posterior tibial artery posteriorly to lie laterally
Location of genicular branch of obturator nerve
Popliteal fossa
Root of Femoral nerve
L234
Structures passing behind medial malleolus
In order from anterior to posterior-
Tibialis posterior tendon
Flexor digitorum longus tendon
Posterior tibial vein >(popleteal)
Posterior tibial artery
Tibial nerve
Flexor hallucis longus tendon
Formation of popliteal vein
Union of anterior and posterior tibial veins at the bottom of the popliteus muscle.
Floor of femoral triangle
Pectineus
Iliopsoas
Adductor Longus
Floor of femoral triangle
Pectineus
Iliopsoas
Adductor Longus
Function of Peroneus Longus
Eversion at SUBTALAR joint
Assist in plantar flexion
Function of peroneus brevis
Plantar flexion
Function of gastrocnemius
Plantar flexion
May also flex the knee
Function of ribosomes posterior
Plantar flexion
Inversion of SUBTALAR joint
Cuteneous supply of lateral plantar
Sural
Most common site of avulsion of biceps femoris during explosive bending of knee
At attachment of long head to ischial tuberosity
Actually of biceps femoris
Knee flexion
Lateral rotation of tibia
Hip extension
Nerve supply of biceps femoris
Long head by tibial division of sciatic
Short head by Common Peroneal
Both are L5S12
Blood supply of biceps femoris
Both heads—
Profundus femoris
Inferior gluteal
Superior muscular branch of popliteal artery
Origin of short head of biceps femoris
Lateral lip of linea aspera
Lateral supracondylar ridge of femur
Sciatic nerve lies deep to following structures
Gluteus maximus
Long head of biceps femoris
Branch of inferior gluteal artery
Femoral cutaneous nerve
Muscle of foot not supplied by tibial nerve and what supplies it
Extensor digitorum brevis
Supplied by deep peroneal nerve
Which type of hernia has the highest risk of strangulation
Femoral
Anterior border of femoral canal
Inguinal ligament
Site of Femoral hernia
Femoral canal
Rami of sciatic nerve
Ventral Rami of L45S123
Nerve supply of adductor Magnus
Upper part obturator
Lower part sciatic
Cutaneous supply of sciatica nerve
Gluteal region
Posterior thigh
Entire lower limb except medial aspect which is supplied by saphenous nerve(from femoral)
Structures posterior to lateral malleolus and SUPERFICIAL to superior peroneal retinaculum
Sural nerve
Short saphenous vein
Structures posterior to lateral malleolus and DEEP to superior peroneal retinaculum
Peroneus Longus
Peroneus brevis
Attachment of calcaneofibular ligament
To lateral malleolus
Veins associated with dorsalis pedis artery
dorsalis pedis veins
These are the venae comitantes of the dorsalis pedis artery, and there are usually two veins around the artery. The dorsalis pedis veins are connected to the superficial venous system and drain the deep structures of the foot.
dorsalis pedis veins are connected to the great saphenous vein and the small saphenous vein by the anteromedial and anterolateral malleolar veins, respectively. The dorsalis pedis veins continue proximally as the anterior tibial veins.
Relation of extensor retinaculum with dorsalis pedis artery
Artery passes deep to inferior extensor retinaculum
Summit of longitudinal arch of foot with its location
Head of talus
located between sustentaculum Tali and navicular bone
Location of transverse arch of foot
Bases of metatarsals
Origin of adductor Longus
Anterior body of pubis
Insertion of adductor Longus
Middle third of linea aspera
Which vein crosses anatomical snuff box
Cephalic vein
Nerve to sartorius
SUPERFICIAL division of the femoral nerve provides motor innervation to the sartorius muscle.
Branches of Femoral nerve
Superficial
Deep
Site of branching of femoral nerve
The femoral nerve splits into superficial and deep divisions after passing under the inguinal ligament.
Coverages of deep femoral nerve
The deep division of the femoral nerve provides motor branches to the quadriceps muscles.
difference between superficial femoral nerve and saphenous nerve
The saphenous nerve and the superficial femoral nerve are both nerves in the leg, but they have different functions and locations:
Location
The saphenous nerve is located deep within the leg, while the superficial femoral nerve branches off near the pubic bone.
Function
The saphenous nerve provides sensation to the lower knee, calf, ankle, and foot arch, while the superficial femoral nerve provides motor innervation to the muscles that extend the knee and flex the hip.
Branches
The saphenous nerve is the terminal branch of the femoral nerve, while the superficial femoral nerve branches into the anterior (superficial) femoral nerve and the posterior (deep) femoral nerve.
Importance of SAPHENOUS nerve
The saphenous nerve can be blocked to relieve pain or numb the area before a procedure. Damage to the saphenous nerve can occur during procedures that strip the saphenous vein, which can lead to pain, loss of sensation, or paraesthesia.
Ending of Femoral nerve
The femoral nerve ends as the saphenous nerve in the leg’s gaiter region.
Mode of injury of Femoral nerve and manifestation
The femoral nerve can be injured by a number of things, including stab wounds, pelvic fractures, and hip replacements.
Symptoms of femoral nerve injury include motor loss, sensory impairment, and an inability to extend the knee.
Serial of PES ANSERINUS
From anterior to posterior
Sa G Se
Function of sartorius of right side
Placing right heel on left knee while sitting on a chair
Or
Slight abduction and lateral rotation of thigh
Nerves in adductor canal
Saphenous nerve
Nerve to vastus medialis
Termination of superficial peroneal nerve
By branching into —
Intermediate dorsal cuteneous nerve
Medial dorsal cuteneous nerve
What structure separates posterior cruciate ligament from popliteal artery
Oblique popliteal ligament
Name of joint between patella and femur
Sellar joint /saddle joint
Largest joint in our body
Knee
Which joint is most complicated
Knee
Anterior cruciate ligament
Anterior tibia to LATERAL intercondylar notch of femur
Posterior cruciate ligament
Posterior tibia to MEDIAL intercondylar notch of femur
Relation of meniscus and collateral ligament of knee
Medial meniscus is attached to tibial collateral ligament
But lateral meniscus id attached to loose fibres at lateral edge of joint and is separated from fibular collateral ligament
Function of medial and lateral collateral ligaments
Medial for valgus stability
Lateral for varus stability
Formation of muscular compartments of thigh
Formed by septae passing from the femur to the fascia lata
Formation of muscular compartments of leg
Formed by
Interosseous membrane
Anterior fascial septum
Posterior fascial septum
Muscles of superficial posterior compartment of leg
Gastrocnemius
Soleus
Plantaris
Muscles of deep posterior compartment of leg
Popliteus
Tibialis posterior
Flexor digitorum longus
Flexor hallucis longus
Root of deep peroneal nerve
L45S12
Termination of deep peroneal nerve
After bifurcation past ankle joint —
Lateral branch innervates EDB,EHB
Medial branch innervates 1st web space
hardinge style of hip surgery
The Hardinge approach is a surgical technique for accessing the hip joint during total hip replacement:
Patient positioning: The patient lies on their side with a sterile drape folded into a “saddle bag” shape.
Incision: A 6 cm incision is made on the anterolateral side of the thigh.
Muscle movement: The muscles below the skin are moved aside without cutting them.
Dissection: The tensor fasciae latae is split in line with the femur, and the most anterior fibers of the medius are split.
The Hardinge approach has several benefits, including:
Improved function
Pain relief
Good visualization of the acetabulum
Optimal cup positioning
Excellent stability of the total hip joint
Less post-operative abductor weakness
Faster patient rehabilitation
The Hardinge approach is more difficult than the posterior approach, but it can reduce the incidence of dislocation.
Most posterior structure at the Medial malleolus
Flexor hallucis longus tendon
Ligaments of ankle joint
Deltoid (medially)
Lateral collateral
Talofibular (anteriorly & posteriorly)
Is calcaneofibular ligament a part of ligaments of ankle joint
No
This ligament is separate from the fibrous capsule of the joint.the two talofibular ligaments are fused with it.
Components of syndesmosis of tibia and fibula
Anteroinferior tibiofibular ligament
Posteroinferior tibiofibular ligament
Inferior transverse tibiofibular ligament
Interosseous ligament
Movements of ankle joint
Plantar flexion 55°
Dorsiflexion 35°
Inversion & eversion at subtalar joint
Innervation of ankle joint
TIBIAL
Deep Peroneal
Innervation of long head of biceps femoris and root
Tibial division of sciatic nerve
L5S12
Blood supply of biceps femoris
Inferior gluteal
Profunda femoris
Superior muscular branch of popliteal
Division of common Peroneal nerve at which side of neck of fibula
Lateral side
Which division of sacral plexus gives rise to common Peroneal nerve
Dorsal division of L45S12
Where common Peroneal nerve is palpable
Behind head of fibula
Muscle in thigh supplied by Common Peroneal nerve
Short head of biceps femoris
Origin of lateral cuteneous nerve of calf
In popliteal fossa from common Peroneal nerve
Compartments of popliteus and plantaris
Popliteus deep posterior
Plantaris superficial posterior
Which artery lies deep to saphenofemoral junction prone to be injured in Trendelenburg procedure for varicose vein
Deep external PUDENDAL artery
Origin of great SAPHENOUS vein
At the first digit where the dorsal vein merges with dial venous arch of foot
Origin of Psoas major
Deep part from transverse processes of cover lumber vertebrae
Superficial part from T12 & first 4 lumbar vertebrae
Innervation of psoas major
Anterior Rami of L123
Muscle raising trunk from spine position other than rectus abdominis
Bilateral contraction of Psoas major
Symptom of PES ANSERINUS bursitis
Pain and swelling on medial aspect of knee joint while climbing up stairs but not while walking on flay ground
The McMurray test
The McMurray test is a series of knee movements that helps a healthcare provider diagnose a torn meniscus in the knee. It’s often part of an initial exam for patients with knee pain or after an injury.
Here’s how the test is performed:
The provider bends the patient’s knee
The provider straightens and rotates the knee
The provider applies valgus stress while rotating the tibia internally and externally
The test is considered positive if the provider hears or feels a click or thud when the knee is bent beyond 90 degrees. A negative result means the provider didn’t hear or feel anything
What is the test to slide medial meniscus injury
McMurray test
Cause of pes anserinus bursitis
Overuse injury
Relation of TIBIAL nerve with popliteal artery and posterior tibial artery
TIBIAL nerve lies medial to popliteal artery and lateral to posterior tibial artery
Origin of deep circumflex iliac artery
Arises above inguinal ligament
Origin of superficial circumflex iliac artery
Arises below inguinal ligament
Floor of femoral triangle
Iliotibial
Pectineus
Adductors longus
Nerves encountered in femoral triangle
Femoral nerve
Femoral branch of genitofemoral nerve
Lateral cuteneous nerve of thigh
Most muscles of foot are innervated by which nerve
TIBIAL
Except EDB & EHB
Relation of synovial cavity with patella
Posterior surface is patella in intrasynovial
Exit of posterior femoral cutaneous nerve
Greater sciatic foramen
Origin of anterior tibial artery
Begins opposite the DISTAL border of popliteus muscle
Then the ATA passes through an oval opening in the interosseous membrane between the tibia and fibula.
Then ATA travels between Tibialis anterior and extensor digitorum longus muscles
ATA becomes the dorsalis pedis artery in the foot.
relation of popliteal artery with political muscle
Artery is superficial to muscle
Femoral stretch test
The prone knee bending test is a neural tension test used to stress the femoral nerve and the mid lumbar (L2-L4) nerve roots.
Features of L3 nerve root compression
Sensory loss over after thigh/knee
Weak quadriceps
Reduced knee reflex
Positive femoral stretch test
Features of L5 nerve root compression
Sensory loss over dorsum of foot
Weakness in foot and big toe dorsiflexion
Reflex intact
Positive sciatic nerve stretch test
Features of S1 nerve root compression
Sensory loss posterolateral aspect of leg and lateral aspect of foot
Weakness in plantar flexion of foot
Reduced able reflex
Positive sciatic nerve stretch test
Origin of ilioinguinal nerve
From first lumbar ventral ramus with iliohypogastric
Muscles related to ilioinguinal nerve
After origin from L1 it passes through substance of Psoas major and over the anterior surface of quadrate lumborum. It pierces internal oblique muscle she passes deep to aponeurosis of external oblique muscle. It enters the inguinal canal and passes through superficial inguinal ring
Innervation of ilioinguinal nerve
Muscles through which it passes
Skin & fascia over pubic symphysis
Superomedial femoral triangle
Scrotal surface
Surface of dorsum of penis
Labia majora
Artery at risk near saphenofemoral junction
Deep external pudendal artery
It is of lesser importance so if injured, better ligated
Relation of peroneus Tertius with malleolus
Passes anterior to lateral malleolus
Lateral rotators of hip
P-GO-GO-Q
Features of LMN lesion
Flaccid paralysis
Atrophy
Lost reflexes
Fasciculations
Relation of LMN lesion with spinal cord level
For lesion below L1 LMN signs will occur
Which structure attaches periosteum to bone
Sharpey’s fibres
Relation of medial femoral circumflex artery with quadratus femoris
Artery rings deep to muscle
Root of nerve to extensor hallucis longus
L5
Knee dermatome
L3
Nerves tried to knee joint
Infrapatellar branch of SAPHENOUS nerve, lateral cuteneous nerve of thigh, anterior cuteneous nerve of thigh (both lateral and medial branches)
Treatment of pudendal nerve injury
Sacral neuro modulation
Feature of injury to hypogastric autonomic plexus
Constipation
Features of thoracic cord lesion
Spastic paraparesis
Hyperreflexia
Extensor plantar response(UMN)
incontinence
Sensory ataxia (lost below lesion)
—these features typically manifest several weeks later, once spinal shock (in which areflexia predominates) has resolved.
Structure posterior to femoral nerve in femoral triangle
Iliacus muscle
Most superficial structure of popliteal fossa
Tibial nerve
Origin of superior and inferior gluteal arteries
S- posterior trunk of internal iliac artery
I- anterior trunk of internal iliac artery