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Skeletal Anatomy > Os Coxae > Flashcards

Os Coxae Flashcards

1
Q

ilium

A

thin, blade-like portion superior to the hip socket

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2
Q

ishium

A

massive, blunt, posteroinferior part of the bone that one sits on

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3
Q

pubis

A

anterioinferior part of the bone that approaches the opposite os coxae in the middle

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4
Q

acetabulum

A

laterally facing, hemispherical hollow that forms the socket of the hip which articulates with the head of the femur

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5
Q

acetabular fossa (or notch)

A

the nonarticular surface within the acetabulum

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6
Q

lunate surface

A

crescent-shaped articular surface within the acetabulum where the femoral head actually articulates

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7
Q

iliac pillar (acetabula-cristal buttress)

A

the bony thickening or buttress, located vertically above the acetabulum on the lateral iliac surface
this pillar extends to the superior margin of the ilium

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8
Q

iliac (cristal) tubercle

A

the thickening at the superior terminus of the iliac pillar

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9
Q

iliac crest

A

superior boarder of the ilium

S-shaped when viewed superiorly

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10
Q

gluteal lines

A

rough, irregular lines that demarcate the attachment of the gluteal muscles on the lateral surface of the ilium

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11
Q

anterior superior iliac spine

A

located at the anterior end of the iliac crest

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12
Q

anterior inferior iliac spine

A

blunt projection on the anterior boarder of the os coxae just superior to the acetabulum

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13
Q

posterior superior iliac spine

A

the posterior terminus of the iliac crest

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14
Q

posterior inferior iliac spine

A

is a sharp projection just posteroinferior to the auricular surface

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15
Q

greater sciatic notch

A

is the wide notch just inferior to the posterior inferior iliac spine

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16
Q

ischial spine

A

located just inferior to the greater sciatic notch

17
Q

lesser sciatic notch

A

the notch between the ischial spine superiorly and the rest of the ischium inferiorly

18
Q

ischial tuberosity

A

the blunt, rough, massive posteroinferior corner of the os coxae

19
Q

auricular surface

A

ear-shaped sacral articulation on the medial surface of the ilium

20
Q

iliac tuberosity

A

roughened surface just posterosuperior to the auricular surface

21
Q

preauricular sulcus

A

variable groove along the anteroinferior edge of the auricular surface

22
Q

iliac fossa

A

the smooth hollow on the medial surface of the iliac blade

23
Q

arcuate line

A

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

24
Q

iliopubic (iliopectineal) eminence

A

marks the point of union of the ilium and the pubis just lateral to the arcuate line

25
Q

iliopubic (superior pubic) ramus

A

connects the pubic to the ilium at the acetabulum

26
Q

ishiopubic (inferior pubic) ramus

A

is the thin, flat strip of bone connecting the pubis to the ischium

27
Q

pubic symphysis

A

is the near-midline surface of the pubis where the two ossa coxa most closely approach

28
Q

obturator foramen

A

is the large foramen encircled by the two pubic rami and the ischium

29
Q

obturator groove (sulcus)

A

is the wide groove on the medial surface of the iliopubic ramus, at the superiolateral corner of the obturator foramen

30
Q

Siding: isolated pubic regions

A

the vental surface is rough, the dorsal is smooth and convex, the symphysis faces the midline and the superior pubic ramus is more robust than the inferior pubic ramus

31
Q

Siding: isolated ischial regions

A

the thicker ramus faces the acetabulum
the thinner ramus is therefore anteroinferior
the surface of the ischial tuberosity faces posterolaterally

32
Q

Siding: isolated iliac blades

A

the iliac pillar is lateral and is anteriorly displaces

the auricular surface and related structures are posterior and medial

33
Q

Siding: isolated iliac crest

A

the iliac tubercle is anterior and lateral and the lateral surface anterior to it is more concave than the surface posterior to it
the crest sweeps posteromeidally from this point until is reaches the level of the anterior edge of the auricular surface and turns laterally

34
Q

Siding: isolated acetabula

A

the acetabular notch is inferior and faces slightly anteriorly
the inferior end of the ā€œcā€ made by the lunate surface is broader and more blunt than the superior end
the ischial ramus is posterior and the superior pubic ramus is anterior
the ilium is superior

35
Q

Siding: isolated auricular surface

A

the auricular surface is posterior on the ilium and faces medially
its apex points anteriorly and the roughened reface for the sacroiliac ligaments is posterosupeiror
the greater and lesser sciatic notches are posterinferior

Skeletal Anatomy (16 decks)

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