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Limbs Anatomy (own flashcards) > Hip, Thigh and Buttocks > Flashcards

Hip, Thigh and Buttocks Flashcards

1
Q

Psoas major - attachments

A

Proximal: Arises from transverse processes of all 5 lumbar vertebrae and from sides of T12-L5 vertebrae and the intervertebral discs between them

Distal: Tapers inferiorly crossing in front of the sacrum and sacro-iliac joint to join with the iliac muscle and to insert onto the lesser trochanter of the femur

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2
Q

Iliacus - attachments

A

Proximal: Arises from inner surface of iliac fossa

Distal: Blend with fibres of psoas major and inserts onto lesser trochanter of femur

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3
Q

Tensor fascia latae - attachments

A

Proximal: ASIS and anterior portion of iliac crest

Distal: Inserts into iliotibiial tract which inserts onto lateral condyle of the tibia

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4
Q

Rectus femoris - attachments

A

Proximal: Arises by 2 separate heads (straight head from AIIS and reflected head from ilium just superior to acetabulum)

Distal: Tendons form fusiform muscle belly which inserts into quadriceps tendon which inserts into base of patella tendon

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5
Q

Vastus lateralis - attachments

A

Proximal: Arises from posterior aspect of femur, beginning at greater trochanter and continuing inferiorly along the lateral lip of the linea aspera of the femur

Distal: Inserts into lateral patella and tendon of rectus femoris to form quadriceps tendon

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6
Q

Vastus intermedius - attachments

A

Proximal: Arises from anterior and lateral aspects of femoral shaft and lateral intermuscular septum

Distal: Inserts into posterior surface of the upper border of the patella and forms part of the quadriceps tendon

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7
Q

Vastus medialis - attachments

A

Proximal: Arises from the intertrochanteric line and medial lip of line aspera of femur and from the medial inter muscular septum

Distal: Inserts into medial border of the quadriceps tendon, but some of inferior fibres insert directly into the medial side of the patella

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8
Q

Pectineus - attachments

A

Proximal: Arises from pecten pubis

Distal: Inserts on pectineal line of the shaft of the femur just inferior to lesser trochanter

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9
Q

Adductor longus - attachments

A

Proximal: Arises from the body of the pubic bone, just beneath the pubic tubercle

Distal: Inserts onto the linea aspera of the femur

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10
Q

Adductor brevis - attachments

A

Proximal: Arises from the body and inferior ramus of the pubis

Distal: Inserts into the pectineal line and proximal portion of the linea aspera of the femur

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11
Q

Obturator externus - attachments

A

Proximal: Arises from margins of the obturator foramen and obturator membrane

Distal: Fibres converge and course behind the neck of femur to insert on the intertrochanteric fossa

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12
Q

Adductor magnus - attachments

A

Proximal: Inferior ramus of pubis, ramus of ischium and ischial tuberosity

Distal: Gluteal tuberosity, linea aspera, medial supracondylar line, adductor tubercle of femur.

NOTE: Portion inserting on SC line = adductor portion
Portion inserting on AT = hamstring portion

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13
Q

Gracilis muscle - attachments

A

Proximal: Body and inferior ramus of pubis

Distal: Medial aspect of upper portion of tibia, just below medial condyle

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14
Q

Psoas major - function

A

Flexion of the thigh at hip alongside iliacus

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15
Q

Iliacus - function

A

Flexion of thigh at hip alongside iliacus

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16
Q

Tensor fascia latea - function

A

Flexion, abduction and medial rotation of hip

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17
Q

Psoas major innervation

A

Ventral rami of L1-3

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18
Q

Iliacus innervation

A

Femoral nerve (L2,3,4)

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19
Q

Tensor fascia latae innervation

A

Superior gluteal nerve (L4 + 5)

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20
Q

Sartorius - attachments

A

Proximal: ASIS

Distal: Superior part of medial surface of tibial shaft

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21
Q

Sartorius - function

A

Flexion, abduction and lateral rotation of the thigh at hip joint

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22
Q

Sartorius - innervation

A

Femoral nerve (L2 L3)

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23
Q

Rectus femoris - function

A

Extension of leg at knee joint

Flexion of thigh (helps iliopsoas)

24
Q

Rectus femoris - innervation

A

Femoral nerve (L2, L3, L4)

25
Q

Vastus lateralis - function

A

Extension of leg at knee joint

26
Q

Vastus lateralis - innervation

A

Femoral nerve (L2, L3, L4)

27
Q

Vastus intermedius - function

A

Extension of leg at knee joint

28
Q

Vastus intermedius - innervation

A

Femoral nerve (L2, L3, L4)

29
Q

Vastus medialis - function

A

Extension of leg at knee joint

30
Q

Vastus medialis - innervation

A

Femoral nerve (L2, L3, L4)

31
Q

Pectineus - function

A

Adduction and flexion of thigh at hip joint

Assists with medial rotation of the thigh

32
Q

Pectineus - innervation

A

Femoral nerve (L2, L3) and occasionally branch from obturator nerve

33
Q

Adductor longus - function

A

Adduction, flexion and medial rotation of thigh

34
Q

Adductor longus - innervation

A

Obturator nerve via anterior branch (L2, L3, L4)

35
Q

Adductor brevis - function

A

Adduction, flexion and medial rotation of thigh

36
Q

Adductor brevis - innervation

A

Obturator nerve (L2, L3, L4)

37
Q

Obturator externus - function

A

Lateral rotation of thigh at hip and steadies head of femur in acetabulum

38
Q

Obturator externus - innervation

A

Obturator nerve (L3, L4)

39
Q

Adductor magnus - function

A

Adduction of thigh at hip
Weak flexion and medial rotation of thigh (superior)
Extension and lateral rotation of thigh (lower)

40
Q

Adductor magnus - innervation

A

Obturator nerve (L2, L3, L4)

41
Q

Gracilis - function

A

Adduction of thigh
Flexion of leg at knee
Medial rotation when knee is flexed

42
Q

Gracilis - innervation

A

Obturator nerve (L2, L3)

43
Q

Gluteus maximus - attachments

A

Proximal: Posterior gluteal line of ilium, dorsal surfaces of sacrum and coccyx and sacrotuberous ligament

Distal: Iliotibial tract (+some fibres from lower half attach to gluteal tuberosity of femur)

44
Q

Gluteus maximus - function

A

Extension and lateral rotation of thigh at hip joint
Abduction of thigh - upper fibres
Adduction of thigh - lower fibres

45
Q

Gluteus maximus - innervation

A

Inferior gluteal nerve (L5, S1, S2)

46
Q

Gluteus medius - attachments

A

Proximal: External surface of ilium between anterior and posterior gluteal lines

Distal: Greater trochanter of femur

47
Q

Gluteus medius - function

A

Abduction and medial rotation of thigh at hip joint

Steadies pelvis on leg when opposite leg is raised off ground

48
Q

Gluteus medius - innervation

A

Superior gluteal nerve (L5, S1)

49
Q

Gluteus minimus - attachments

A

Proximal: External surface of ilium between anterior and inferior gluteal lines

Distal: Greater trochanter of femur

50
Q

Gluteus minimus - function

A

Abduction and medial rotation of thigh at hip

Steadies pelvis on leg when opposite leg raised off ground (with gluteus medius)

51
Q

Gluteus minimus - innervation

A

Superior gluteal nerve (L5, S1)

52
Q

Piriformis - attachments

A

Proximal: Anterior surface of sacral segments and sacrotuberous ligament

Distal: Round tendon inserts into greater trochanter of femur

53
Q

Piriformis - function

A

Abduction of flexed thigh at hip
Stabilisation of hip joint
Lateral rotation of extended thigh

54
Q

Piriformis - innervation

A

Ventral rami of S1 and S2

55
Q

Gemellus : superior and inferior - attachments

A

Proximal: Superior arises from spine of ischium
Inferior arises from ischial tuberosity

Distal: both tendons blend with tendon of obturator internus to insert on medial aspect of greater trochanter of femur

56
Q

Gemellus : superior and inferior - function

A

Lateral rotation of extended thigh
Abduction of flexed thigh at hip
Steady femoral head in acetabulum

57
Q

Gemellus : superior and inferior - innervation

A

Superior - obturator internus (L5, S1)

Inferior - branch of nerve to quadratus femoris (L5, S1)

Limbs Anatomy (own flashcards) (3 decks)

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