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Os Coxae Flashcards

1
Q
A
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2
Q

What are the three primary bones?

A
  • ilium
  • Ischium
  • Pubis
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3
Q

What is the ilium?

A
  • Thin
  • Blade-like
  • Found above the hop joint
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4
Q

What is the Ischium

A
  • Blunt
  • Posteroinferior part of the os coxae
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5
Q

What is the Pubis

A

Anteroinferior part of the os coxae

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6
Q

What is the Acetabulum?

A
  • Hemisperical hollow forming the socket of the hip
  • Faces laterally
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7
Q

What is the origin of the retus femoris?

A

Anterior head - anterior inferior ilac spine

Posterior head - ilium above the acetabulum

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8
Q

What is the insertion site for the rectus femoris?

A

Quadriceps tendon into the patella

Patellar ligament to the tibial tuberosity

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9
Q

What is the action done by the rectus femoris muscle?

A

Extends the leg at the knee joint and flexes the hip

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10
Q

What is the Acetabular Fossa?

A

Non articular depressed area within the acetabulum

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11
Q

What is the Acetabular Notch?

A
  • Non-articular indentation found along the infrior marigin of the acetabulum
  • Inferior to the lunate surface and acetabular fossa
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12
Q

What is the transverse acetabular to and from

A

From the Acetabular notch to the Aetabular notch

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13
Q

What is the Teres ligament connected to?

A

From the femoral head to the Acetabular notch

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14
Q

What is the Lunate Surface?

A

Crescent-shaped articular surface within the acetabulum.

Articulation site for the femoral head.

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15
Q

What is the Iliac Crest?

A

Superior border of the ilium

S shaped when viewed superiorly

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16
Q

What is the iliac Pillar?

A

Bony thickening above the acetabulum

Extends to the superior margin of the ilium

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17
Q

What is the iliac Tubercle?

A

Thickening at the superior terminus of the iliac pillar

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18
Q

What are the 3 Gluteal lines?

A

Anterior Gluteal Line

Posterior Gluteal Line

Inferior Gluteal Line

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19
Q

What is the origin site of the Gluteus minimus muscle?

A

Posterior surface of the ilum between the anterior and inferior gluteal lines

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20
Q

What is the insertion site of the Gluteus minimus muscle?

A

Anterior surface of the greater trochanter

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21
Q

What is the action done by the Gluteus minimus muscle?

A

Abducts the thigh at the hip joint, medially rotates the thigh, and stabilises the hip

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22
Q

What is the origin site of the Gluetus medius?

A

Posterior surface of the ilium between the anterior and posterior gluteal lines, inferior to the iliac crest

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23
Q

What is the insertion site of the Gluteus medius?

A

Lateral surface of the greater trochanter

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24
Q

What si the action done by the Gluteus medius muscle?

A

Abducts the thigh medially rotates the thigh and stabilses the hip

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25
Q

What is the Anterior superior iliac spine

A

Bone projection found at the anterior end of the iliac crest

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26
Q

What is the origin of the Sartorius muscle?

A

Anterior superior iliac spine

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27
Q

What is the insertion site of the Sartorius muscle?

A

Proximal anteromedial surface of the tibial shaft

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28
Q

What is the action done by the Satorius musle?

A

Flexes, abducts and laterally rotates the thigh at the hip joing
- Flexes the leg at the knee joint

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29
Q

What is the Anterior inferior iliac spine?

A

Bone projection found at the anterior end of the iliac crest
- Inferior to the anterior iliac spine

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30
Q

What is the Posterior superior iliac spine?

A

Bone projection found at the posterior end of the iliac crest

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31
Q

What is the origin site for the Gluetus maximus muscle?

A

Posterior superior iliac spine, posterior wall of the sacrum and posterior surface of the cocyx

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32
Q

What is the insertion site of the gluteus maximus muscle?

A

Iliotibial tract of fascia lata, and gluteal tuberosity of the femur

33
Q

What is the action done by the Gluteus maximus muscle?

A

Extends the thigh, laterally rotates the thigh and stabilises the thigh

34
Q

What is the Posterior inferior iliac spine?

A

Bone projection found at the posterior end of the iliac crest
- Inferior to the posterior inferior iliac spine

35
Q

What is the origin site of the Piriformis muscle?

A

Anterior surface of the sacrum and the posterior inferior iliac spine of the innominate.

36
Q

What is the insertion site of the Piriformis muscle?

A

Greater trochanter of the femur

37
Q

What is the role of the piriformis muslce??

A

Laterally rotates the femur

38
Q

What is the Greater Sciatic Notch?

A

Wide notch found at the posterior of the os coxae

Just inferior to the posterior inferior iliac spine

39
Q

What is the Ischial spine?

A

Projection fo bone found infeiro to the greater sciatic notch

40
Q

What is the origin site for the Levator ani muscle?

A

Inferior to the ischial spine at the tip of the lesser sciatic notch.

41
Q

What is the insertion site to Levator ani muscle?

A

Infeiro tip of the coccyx

42
Q

What is the action done by the Levator ani muscle?

A

Supports pelvic organs

43
Q

What is the Lesser Sciatic Notch?

A

Inferior to the Ischial spine
- Superior to the rest of the ischium

44
Q

What attaches to the Ischial Tuberosity?

A
  • Quadratus femoris muscle
  • Biceps femoris muscle
  • Semimembranous muscle
  • Semitendiosus muscle
46
Q

What is the origin site of the Quadratus femoris muscle?

A

Lateral border of the ishial tuberosity

47
Q

What is the insertion site of the quadratus femoris muscle?

A

Crest below the greater trochanter

48
Q

What is the action done by the quadratus femoris muscle?

A

Laterally rotates the femur

49
Q

What is the origin site of the biceps femoris muscle?

A

Long head - ischial tuberosity (medial region).

Short head – linea aspera, lateral supracondylar ridge of the femur.

50
Q

What is the insertion site of the biceps femoris muscle?

A

Lateral side of the head of the fibula and lateral condyle of the tibia

51
Q

What is the action done by the biceps femoris muscle?

A

Flexes the leg at the knee joint and laterally rotates the knee joint. The long head also extends the thigh at the hip joint.

52
Q

What is the origin site of the semimembranosus muscle?

A

Ischial tuberosity (lateral region).

53
Q

What is the insertion site of the semimembranosus muscle?

A

Posterior part of the medial condyle of the tibia

54
Q

What is the action done by the semimembranosus muscle?

A

Flexes the leg, medially rotates the leg and extends the thigh at the hip joint.

55
Q

What is the semitendinosus muscle?

A

Ischial tuberosity

56
Q

What is the insertion site for the semitendinosus muscle?

A

Proximal, medial side of the tibial shaft

57
Q

What action is done by the semitendinosus muscle?

A

Flexes the leg, medially rotates the leg and extends the thigh at the hip joint.

58
Q

What is the Auricular surface?

A
  • Found medial portion of the ilium
  • Ear shaped sacral articulation
59
Q

What is the iliac tuberosity?

A

Roughened surafce just posterior/surperior to the auricular surface

60
Q

What is the iliac Fossa?

A

Smooth hollow on the medial surface of the iliac blade

61
Q

What is the origin site of the iliacus muscle?

A

Iliac fossa and alae of the sacrum

62
Q

What is the insertion site of the iliacus muscle?

A

Along with the tendon of psoas major muscle into the lesser trochanter of the femur.

64
Q

What is the action done by the Ilacus muscle?

A

Flexes and laterally rotates the thigh at the hip joint

65
Q

What is the Arcuate line?

A

Elevation that sweeps anteroinferiorly across the medial surface of the os coxae from the apex of the auricular surface towards the pubis

66
Q

What is the Iliopubic eminence?

A

Union of the ilium and the pubis

Lateral to the arcuate line

67
Q

What is the Iliopubic Ramus?

A

Connects the pubis to the ilium at the acetabulum

Attachment point for Pectineus muscle and Adductor longus muscle

68
Q

What is the insertion site for the Pectineus muscle?

A

Base of the lesser tochanter to the linea aspera of the femur (Along the pectineal line)

69
Q

What is the action done by the Pectineus muscle?

A

Flexes the thigh at the hip and assists witht he medial rotation of the thigh

70
Q

What is the insertion site for the Adductor longus muscle?

A

Medial lip of linea aspera (femur)

71
Q

What is the action done by the Adductor longus muscle?

A

Adducts the thigh, flexes the thigh and assists with medial rotation of the thigh

72
Q

What is the Ischiopubic Ramus?

A

Thin, flat strip of bone connecting th ischium to the pubis

Attachment point for: Adductor magnus msucle, Adductor brevis muscle and Gracilis muscle

73
Q

What is the insertion site of the Adductor magnus muscle?

A

Linea aspera and adductor tubercle of the femur

74
Q

What is the action done by the adductor magnus muscle?

A

Adducts the thigh, extends the thigh and assists in medial rotation

75
Q

What is the insertion site of the Adductor brevis muscle?

A

Below the lesser trochanter to down along the proximal portion of the linea aspera

76
Q

What is the action done by the Adductor brevis muscle?

A

Adducts the thigh, flexes the thigh and assists with medial rotation of the thigh

77
Q

What is the Obturator foramen?

A

Large hole encircled by the pubic rami and the ischium

78
Q

What is the Obturator groove?

A

Wide groove on the medial surface of the iliopubic ramus
- Found at the superolateral corner of the obturator foramen

Functional Anatomy (16 decks)

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