Gross 2 Femoral Region *Muscles, Nerves and Actions Flashcards

1
Q

What are the attachments of the Pectinous?

A

Proximal: Superior ramus of pubis

Distal: Pectineal line of femur, just inferior to lesser trochanter

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2
Q

What nerve innervates the Pectinous?

A

Femoral Nerve

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3
Q

What are the actions of the Pectinous?

A

Adducts and flexed thigh; assists with medial (internal) rotation of thigh

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4
Q

What are the attachments for Psoas Major?

A

Proximal: Sides of T12-L5 vertebrae and discs between them; transverse processes of all lumbar vertebrae

Distal: Lesser trochanter of femur

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5
Q

What nerve innervates the Psoas Major?

A

Anterior rami of lumbar nerves

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6
Q

What is the action of the Psoas Major?

A

Act conjointly in flexing thigh at hip joint and in stabilizing this joint

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7
Q

What are the attachments of Psoas Minor?

A

Proximal: Sides of T12-L1 vertebrae and intervertebral disc

Distal: Pectineal line and iliopubic eminence via iliopectineal arch

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8
Q

What nerve innervates Psoas Minor?

A

Anterior Rami of lumbar nerves

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9
Q

What are the action of the Psoas Minor?

A

Act conjointly in flexing thigh at hip joint and in stabilizing this joint

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10
Q

What are the attachments of Iliacus?

A

Proximal: Iliac crest, iliac fossa, ala of sacrum, and anterior sacro-iliac ligaments

Distal: Tendon of psoas major, lesser trochanter, and the femur distal to it

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11
Q

What nerve innervates Iliacus?

A

Femoral Nerve

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12
Q

What is the action of the Iliacus?

A

Act conjointly in flexing thigh at hip joint and in stabilizing this joint

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13
Q

What are the attachments of Sartorius?

A

Proximal: Anterior superior Iliac spine (ASIS) and superior part of notch inferior to it

Distal: Superior part of medial surface of tibia

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14
Q

What nerve innervates the Sartorius?

A

Femoral Nerve

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15
Q

What is the action of the Sartorius?

A

Flexes, Abducts, and laterally rotates thigh at hip joint; flexes leg at knee joint (Medially rotating leg when knee is flexed)

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16
Q

What are the attachments for Rectus Femoris?

A

Proximal: Anterior Inferior iliac spine (AIIS) and ilium superior to acetabulum

Distal: (Book goes really in depth) Direct attachment to Quadriceps tendon {base of the patella}, indirect attachment to Patellar ligament to tibial tuberosity

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17
Q

What nerve innervates the Rectus Femoris?

A

Femoral Nerve (L2, L3, L4)

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18
Q

What is the action of the Rectus Femoris?

A

-Extend leg at knee joint
-Also steadies hip joint and helps iliopsoas flex thigh

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19
Q

What are the attachments for Vastus Lateralis?

A

Proximal: Greater trochanter and lateral lip of linea aspera of femur

Distal: Distal: (Book goes really in depth) Direct attachment to Quadriceps tendon {base of the patella}, indirect attachment to Patellar ligament to tibial tuberosity, Also attaches to tibia and patella via aponeuroses

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20
Q

What nerve innervates Vastus Lateralis?

A

Femoral Nerve (L2, L3, L4)

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21
Q

What is the action of Vastus Lateralis?

A

Extend leg at knee joint

22
Q

What are the attachments of Vastus Medialis?

A

Proximal: Intertrochanteric line and medial lip of linea aspera of femur

Distal: (Book goes really in depth) Direct attachment to Quadriceps tendon {base of the patella}, indirect attachment to Patellar ligament to tibial tuberosity, Also attaches to tibia and patella via aponeuroses

23
Q

What nerve innervates Vastus Medialis?

A

Femoral Nerve (L2, L3, L4)

24
Q

What is the action of Vastus Medialis?

A

Extend leg at knee joint

25
Q

What are the attachment for Vastus Intermedius?

A

Proximal: Anterior and Lateral surfaces of shaft of femur

Distal: (Book goes really in depth) Direct attachment to Quadriceps tendon {base of the patella}, indirect attachment to Patellar ligament to tibial tuberosity

26
Q

What nerve innervates Vastus Intermedius?

A

Femoral Nerve (L2, L3, L4)

27
Q

What is the action of Vastus Intermedius?

A

Extend leg at knee joint

28
Q

What are the attachments for Adductor Longus?

A

Proximal: Body of pubis inferior to pubic crest

Distal: Middle third of linea aspera of femur

29
Q

What nerve innervates Adductor Longus?

A

Obturator nerve and brach of anterior division

30
Q

What is the action of Adductor Longus?

A

Adducts thigh

31
Q

What are the attachments for Adductor Brevis?

A

Proximal: Body and inferior ramus of pubis

Distal: Pectineal line and proximal part of linea aspera of femur

32
Q

What nerve innervates Adductor Brevis?

A

Obturator nerve and branch of anterior division

33
Q

What is the action of Adductor Brevis?

A

Adducts thigh; and to some extent flexes it

34
Q

What are the attachments for Adductor Magnus?
(ADDUCTOR PART)

A

Proximal: Inferior ramus of pubis and remus of ischium

Distal: Gluteal Tuberosity, linea aspera, and medial supracondylar line

35
Q

What are the attachments for Adductor Magnus?
(HAMSTRING PART)

A

Proximal: Ischial tuberosity

Distal: Adductor tubercle of femur

36
Q

What nerve innervates Adductor Magnus?
(Adductor and Hamstring part)

A

Adductor: Obturator nerve and branches of posterior division

Hamstring: Tibial part of Sciatic nerve

37
Q

What is the action of Adductor Magnus?

A

Adducts thigh

Adductor part: Flexes thigh

Hamstring part: Extends thigh

38
Q

What are the attachments of Gracilis?

A

Proximal: Body and inferior ramus of pubis

Distal: Superior part of medial surface of tibia

39
Q

What nerve innervates Gracilis?

A

Obturator nerve

40
Q

What is the action of Gracilis?

A

Adducts the thigh; flexes leg; helps rotate leg medially

41
Q

What are the attachments for Obturator Externus?

A

Proximal: Margins of obturator foramen and obturator membrane

Distal: Trochanteric fossa of femur

42
Q

What nerve innervates the Obturator Externus?

A

Obturator nerve

43
Q

What is the action of Obturator Externus?

A

Laterally rotates thigh; steadies head of femur in acetabulum

44
Q

What are the attachments of Semitendinosus?

A

Proximal: Ischial Tuberosity

Distal: Medial Surface of superior part of tibia

45
Q

What nerve innervate Semitendinosus?

A

Tibial Division of Sciatic Nerve

46
Q

What are the actions for Semitendinosus?

A

Extend the thigh; Flex leg and rotate it medially when knee is flexed, When thigh and leg are flexed, these muscles can extend trunk

47
Q

What are the attachments for Semimembranosus?

A

Proximal: Ischial Tuberosity

Distal: Posterior part of medial condyle of tibia

48
Q

What nerve innervates Semimembranosus?

A

Tibial Division of Sciatic Nerve

49
Q

What are the actions for Semimembranosus?

A

Extend the thigh; Flex leg and rotate it medially when knee is flexed, When thigh and leg are flexed, these muscles can extend trunk

50
Q

What are the attachments for Bicep Femoris?

A

Proximal: (Long Head) Ischial Tuberosity
(Short Head) Linea Aspera and lateral supracondylar line of femur

Distal: Lateral side of head of fibula. (tendon is split by LCL)

51
Q

What nerve innervates Bicep Femoris?

A

(Long Head) Tibial division of Sciatic
(Short Head) Common fibular division of sciatic

52
Q

What are the actions of Bicep Femoris?

A

Flexes leg and rotates it laterally when knee is flexed; extends thigh