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COM MSK > Anterior and Medial Thigh > Flashcards

Anterior and Medial Thigh Flashcards

1
Q

Tributaries of the great saphenous vein

A

External pudendal
Superficial circumflex iliac
Superficial epigastric

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2
Q

Superficial inguinal lymph nodes super/inferior groups

A

Superior/horizontal- drains anterior abdominal wall inferior to umbilicus, penis, scrotum, vulva, lower vagina and anal canal, lateral thigh
Inferior/vertical- drains superficial tissue of lower extremity except dorsolateral foot and posterior calf- drained by popliteal lymph nodes

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3
Q

Pathology involved with superficial inguinal lymph nodes

A

Sexually transmitted infections
Medial foot/leg cellulitis
Skin cancer

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4
Q

Lateral femoral cutaneous nerve

A

Sensory anterior and lateral thigh

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5
Q

Obturator nerve

A

Sensory medial thigh
Motor- obturator externus, adductor longus/brevis (anterior division), gracilis, adductor magnus (adductor part, posterior division)
May give branch to pectineus

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6
Q

Femoral branch of genitofemoral nerve

A

Sensory- scrotum/labia majora/medial thigh

Motor- cremaster muscle

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7
Q

Meralgia parasthetica

A

Gun belt palsy
Impingement of lateral femoral cutaneous nerve
Tingling/numbness later thigh
Can occur in anyone who wears a heavy belt or something that impinges inguinal region (cops, construction worker, pregnancy or obesity)

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8
Q

Iliotibial tract IT band

A

Fibers of the fascia lata of vertical orientation
Aponeuroses of gluteus maximus and tensor fascia lata
Inserts into Gerdys tubercle- anterolateral tubercle of the tibia

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9
Q

Anterior compartment muscles of the thigh include

A 
Extensor compartment (flexors of hip, extensors of knee)
Psoas major
Iliacus
Sartorius (longest muscle of body)
Quadriceps femoris
Rectus femoris
Vastus lateralis/intermedius/medialis
Articularis genu
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10
Q

Quadriceps femoris

A

Extensors of knee, composed of:
Rectus femoris (also flexes hip)
Vastus lateralis
Vastus intermedialis
Vastus medialis (also stabilizes patella)
All 4 aponeurosis of these muscles insert on patella

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11
Q

Flexors of hip from anterior compartment

A

Sartorius- also abducts/laterally rotates hip and flexes/medially rotates knee
Iliopsoas (psoas major and iliacus)
Pectineus- also stabilizes patella

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12
Q

Iliacus muscle OINA

A

O-Anterior/superior iliac fossa, ala of sacrum
I- lesser trochanter of femur
N- Femoral nerve
A- flex thigh and stabilize acetabulofemoral joint

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13
Q

Psoas major OINA

A

O- Transverse processes of lumbar vertebrae
I- lesser trochanter
N- Anterior rami of L1-3
A- Flex vertebral column, trunk and thigh-when used with iliacus

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14
Q

Rectus femoris OINA

A

O- straight head- anteroinferior iliac spine
reflected head- ilium above acetabulum
I- patella/tibial tuberosity via patellar ligament
N- femoral nerve
A- Extend leg at knee, assist iliopsoas in thigh flexion (crosses two joints)

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15
Q

Vastus lateralis OINA

A

O- greater trochanter of femur
I- Lateral patella, tibial tuberosity via patellar ligament
N- femoral nerve
A- extend leg

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16
Q

Vastus intermedialis OINA

A

O- anterior/lateral surface of femoral body
I- base of patella, tibial tuberosity via patellar ligament
N- femoral nerve
A- extend leg

17
Q

Vastus medialis OINA

A

O- Intertrochanteric line of femur
I- tibial tuberosity via patellar ligament
N- femoral nerve
A- extend leg

18
Q

Sartorius OINA

A

O- anterior/superior iliac spine
I- Medial aspect of proximal tibia
N- femoral nerve
A- flex, abduct, laterally rotate thigh and flex knee

19
Q

Pes anserinus

A

Insertion point for the tendons of sartorius, gracilus, semitendinosus muscles

20
Q

Articularis genu OINA

A

O- anterior surface of distal femur
I- articular capsule of knee
N- femoral nerve
A- Tighten knee capsule during extension of leg
(this is the only muscle seen under a reflected vastus intermedius)

21
Q

Femoral nerve supplies what muscle

A 
4 muscles of anterior compartment
Iliacus
Quadriceps femoris
Sartorius
Pectineus
22
Q

Posterior retinacular arteries and Acetabular branch of obturator artery

A

Posterior retinacular- supply head neck of femur, branch from medial femoral circumflex artery
Acetabular branch- Provides blood supply to ligament of head of femur
Can originate from medial femoral circumflex artery if not from the obturator
These are associated with avascular necrosis of hip joint

23
Q

Medial compartment of the thigh contains

A

Pectineus
Adductor longus/brevis/magnus
Gracilis
These are adductors of the hip

24
Q

Gracilis OINA

A

O- body of pubis
I- medial surface of tibia inferior to tuberosity, b/w insertion of sartorius and semitendinosus
N- Anterior division of obturator nerve
A- adduct thigh, assist medial thigh rotation, flex leg
(only muscle in medial group to cross 2 joints)

25
Q

Pectineus OINA

A

O- superior pubic ramus
I- pectineal line of femur
N- femoral nerve
A- Adduct and flex thigh

26
Q

Adductor longus OINA

A

O- body of pubic ramus inferior to pubic crest
I- middle third of linea aspera
N- anterior division of obturator nerve
A- adduct thigh

27
Q

Adductor brevis OINA

A

O- body and inferior pubic ramus
I- pectineal line and proximal linea aspera
N- anterior division of obturator nerve
A- Adduct thigh, assist in flexion

28
Q

Adductor magnus OINA

A

O- ischiopubic ramus and ischial tuberosity
I- pectineal line of femur
N- upper fibers- posterior division obturator nerve
lower fibers- tibial division sciatic nerve
A- whole muscle- adduct thigh
hamstring side helps extend leg

29
Q

Obturator externus OINA

A

O- external surface and surrounding margins of obturator membrane (pubis and ischium)
I- Passes posterior to neck of femur to attach at trochanteric fossa
N- anterior division of obturator nerve
A- lateral rotator of thigh, holds head of femur in acetabulum

30
Q

Hunters canal

A

Narrow conical tunnel located in thigh, runs from apex of femoral triangle to adductor hiatus (gap b/w adductor and hamstring attachments of the adductor magnus) also known as adductors canal

31
Q

Boundaries of hunters canal

A

Anteromedial- sartorius
Lateral- vastus medialis
Posterior- adductor longus and magnus

32
Q

Contents of adductor canal

A

Femoral artery and vein
Saphenous artery and nerve
Nerve to vastus medialis

33
Q

What exits the adductor canal posteriorly

A

Femoral artery and vein exit through adductor hiatus to become popliteal artery and vein
Saphenous nerve and artery do not exit through adductor hiatus, they pierce the adductor magnus

34
Q

Groin pull

A

Strain/stretching of proximal attachments of anteromedial thigh muscles
i.e. adductor and flexor muscular attachment points (inguinal region at the junction of thigh and trunk)

COM MSK (35 decks)

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