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Anatomy - Lower Limb and Face > Thigh Region > Flashcards

Thigh Region Flashcards

0
Q

What are the muscles of the anterior compartment of the thigh?

A

Pectineus, sartorius, iliopsoas (psoas major and iliacus), and quadriceps femoris (rectus femoris, vastus lateralis, vastus intermedius, and vastus medialis)

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1
Q

What are the three compartments of the thigh?

A

Anterior (extensor), medial (ADD), and posterior (flexor)

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2
Q

What are the muscles of the medial compartment of the thigh?

A

Adductor longus, adductor brevis, adductor magnus, gracilis, and obturator externus

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3
Q

What is the adductor hiatus?

A

Opening between the distal aponeurotic attachment of the adductor part of the adductor magnus and the tendon of the hamstring part

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4
Q

What are the contents of the adductor hiatus?

A

Femoral artery and vein

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5
Q

When does the femoral triangle occur?

A

Occurs as a depression inferior to the inguinal ligament when the thigh is flexed, ABD, and ER

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6
Q

What are the boundaries of the femoral triangle?

A

Superiorly - inguinal ligament
Medially - adductor longus
Laterally - sartorius

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7
Q

What is the apex of the femoral triangle?

A

Medial border of the sartorius crosses the lateral border of the adductor longus

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8
Q

What is the base of the femoral triangle?

A

Inguinal ligament

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9
Q

What is the floor of the femoral triangle?

A

Laterally - iliopsoas

Medially - pectineus

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10
Q

What is the roof of the femoral triangle?

A

Fascia lata, cribriform fascia, subcutaneous tissue, and skin

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11
Q

What are the contents of the femoral triangle?

A

Lateral to medial: femoral nerve, femoral artery, femoral vein, femoral canal, and deep inguinal lymph nodes and associated lymphatic vessels

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12
Q

What is the retroinguinal space and its compartments?

A

Created as the inguinal ligament spans the gap between the ASIS and pubic tubercle - medial and lateral compartments divided by ilipsoas fascia

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13
Q

What is the medial compartment of the retroinguinal space?

A

Allows passage of the veins, arteries, and lymphatics between the greater pelvis and the femoral triangle

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14
Q

What is the lateral compartment of the retroinguinal space?

A

Muscular compartment through which the iliopsoas and femoral nerve pass

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15
Q

What bissects the femoral triangle?

A

Femoral artery and vein which pass to and from the adductor canal at its apex

16
Q

What is the adductor canal?

A

Intermuscular passageway for the femoral artery and vein, saphenous nerve, and nerve to the vastus medialis

17
Q

What are the boundaries of the adductor canal?

A

Anteriorly and laterally - vastus medialis
Posteriorly - adductor longus and adductor magnus
Medially - sartorius

18
Q

What is the roof of the adductor canal?

A

Sartorius

19
Q

What are the three compartments of the femoral sheath?

A

Lateral - for the femoral artery
Medial - for the femoral canal
Intermediate - for the femoral vein

20
Q

What is the base of the femoral canal?

A

Femoral ring

21
Q

What are the boundaries of the femoral ring?

A

Laterally - femoral septum between the femoral canal and the femoral vein
Posteriorly - superior pubic ramus covered by the pectineus and its fascia
Medially - lacunar ligament
Anteriorly - medial part of the inguinal ligament

22
Q

Semitendinosous

A

Origin: ischial tuberosity

Insertion: medial surface of the superior part of the tibia

Innervation: tibial divison of the sciatic nerve (L5,S1, S2)

Action: extend thigh, flex leg and IR when knee is flexed, extend trunk when thigh and leg are flexed

23
Q

Semimembranosous

A

Origin: ischial tuberosity

Insertion: posterior part of the medial condyle of the tibia

Innervation: tibial division of the sciatic nerve (L5,S1,S2)

Action: extend thigh, flex leg and IR when knee is flexed, and extend trunk when thigh and leg are flexed

25
Q

Biceps femoris long head

A

Origin: ischial tuberosity

Insertion: lateral surface of the head of the fibula

Innervation: tibial division of the sciatic nerve (L5,S1,S2)

Action: flex leg, ER when knee is flexed, and extend thigh

26
Q

Biceps femoris short head

A

Origin: linea aspera and lateral supracondylar line of femur

Insertion: lateral surface of the head of the fibula

Innervation: common fibular branch of the sciatic nerve (L5,S1,S2)

Action: flex leg, ER when knee is flexed, and extend thigh

27
Q

Rectus femoris

A

Origin: AIIS and ilium superior to acetabulum

Insertion: base of patella via quadriceps tendon and tibial tuberosity via patellar ligament

Innervation: femoral nerve (L2,L3,L4)

Action: extend leg at knee joint and helps iliopsoas flex the thigh

28
Q

Vastus lateralis

A

Origin: lateral lip of the linea aspera and greater trochanter of the femur

Insertion: base of the patella via the quadriceps tendon, tibial tuberosity via the patellar ligament, and tibia and patella via aponeuroses

Innervation: femoral nerve (L2,L3,L4)

Action: extend leg at knee joint

29
Q

Vastus medialis

A

Origin: medial lip of the linea aspera and the intertrochanteric line

Insertion: base of the patella via the quadriceps tendon, tibial tuberosity via the patellar ligament, and tibia and patella via aponeuroses

Innervation: femoral nerve (L2,L3,L4)

Action: extend leg at knee joint

30
Q

Vastus intermedius

A

Origin: anterior and lateral surfaces of the shaft of the femur

Insertion: base of patella via quadriceps tendon and tibial tuberosity via patellar ligament

Innervation: femoral nerve (L2,L3,L4)

Action: extend leg at knee joint

31
Q

Pectineus

A

Origin: superior pubic ramus

Insertion: pectineal line of femur

Innervation: femoral nerve (L2,L3)

Action: ADD and flex thigh and assist with IR

32
Q

Sartorius

A

Origin: ASIS and superior part of notch inferior to it

Insertion: superior part of medial surface of the tibia

Innervation: femoral nerve (L2,L3)

Action: ABD, flex, and ER thigh at hip joint and flex leg at knee joint

33
Q

Psoas major

A

Origin: lumbar transverse processes and sides of T12-L5 vertebral bodies and intervening discs

Insertion: lesser trochanter of the femur

Innervation: anterior rami of lumbar nerves (L1,L2,L3)

Action: flex thigh at hip joint and stabilize hip joint

34
Q

Iliacus

A

Origin: iliac crest, iliac fossa, ala of sacrum, and anterior sacroiliac ligament

Insertion: lesser trochanter of the femur and psoas major tendon

Innervation: femoral nerve (L2,L3)

Action: flex thigh at hip joint and help stabilize hip joint

35
Q

Adductor longus

A

Origin: body of pubis inferior to pubic crest

Insertion: middle third of the linea aspera of the femur

Innervation: obturator nerve (L2,L3,L4)

Action: ADD thigh

36
Q

Adductor brevis

A

Origin: body and inferior pubic ramus

Insertion: pectineal line and proximal part of linea aspera of femur

Innervation: obturator nerve (L2,L3,L4)

Action: ADD thigh and some flexion

37
Q

Adductor magnus

A

Origin: (adductor) ischial ramus and inferior pubic ramus; (hamstring) ischial tuberosity

Insertion: (adductor) linea aspera, medial supracondylar line, and gluteal tuberosity; (hamstring) adductor tubercle of femur

Innervation: (adductor) obturator nerve (L2,L3,L4); (hamstring) tibial division of the sciatic nerve (L4)

Action: ADD thigh - (adductor) flexes thigh; (hamstring) extends thigh

38
Q

Gracilis

A

Origin: body and inferior pubic ramus

Insertion: superior part of the medial surface of the tibia

Innervation: obturator nerve (L2,L3)

Action: ADD thigh, flex leg, and help IR

39
Q

Obturator externus

A

Origin: margins of obturator foramen and obturator membrane

Insertion: trochanteric fossa of femur

Innervation: obturator nerve (L2,L3)

Action: ER thigh and steadies head of femur in acetabulum

Anatomy - Lower Limb and Face (16 decks)

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