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Anatomy > Level 2 - Pelvis > Flashcards

Level 2 - Pelvis Flashcards

1
Q

What is the pelvic girdle composed of?

A

-sacrum
-two coxal bones
-bound tightly by ligaments

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2
Q

What are the 3 bones that fuse together to form each coxal (innominate) bone?

A

-ilium (largest and upper most)
-ischium (strongest and lowermost)
-pubis (most anterior)

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3
Q

Where does the bladder sit?

A

Right behind the symphysis pubis

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4
Q

Irregular shaped bones in which the head of the femur articulates with the acetabulum

A

Innominate hip bone (coxal)

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5
Q

-Most superior part of the innominate bone

A

Ilium

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6
Q

Wide flattened plate of the ilium with long curved superior border

A

Iliac crest

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7
Q

What muscles attach to the external surface of the ilium?

A

Gluteal muscles

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8
Q

What vertebral level will the highest part of the iliac crest be?

A

Around level L4

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9
Q

Where does the curve of the iliac crest end?

A

Anteriorly
ASIS
anterior superior iliac spine

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10
Q

T/F
The anterior border of the ilium continues to the AIIS, anterior inferior iliac spine

A

True
(Lies just superior to acetabulum)

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11
Q

What are the names for the coxal bone?

A

-coxal
-innominate
-pelvic

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12
Q

Where does the crest of the ilium curve to posteriorly?

A

PSIS
posterior superior iliac spine

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13
Q

What lies below the PSIS?

A

PIIS
posterior inferior iliac spine

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14
Q

Where is the greater sciatic notch situated?

A

Below the PIIS

*triangular notch

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15
Q

What is on the internal surface of the innominate bone?

A

Iliac fossa
*large shallow concave surface

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16
Q

Where do the ilium and pubis meet?

A

Iliopectineal (iliopubic) eminence

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17
Q

T/F
The medial border runs obliquely down across the ilium bone to the iliopectineal eminence

A

True

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18
Q

Border between true and false pelvis

A

Arcuate line

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19
Q

Where on the ilium is the articulating surface for the sacrum?

A

Just superior to the sciatic notch

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20
Q

Forms the inferior and posterior parts of the innominate bones

A

Ishium

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21
Q

What two sections is the ishium split into?

A

Body and ramus

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22
Q

Upper portion of ischium, forms the greater sciatic notch and has the ischial spine, then below the ischial spine is the lesser sciatic notch

A

Body of ischium

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23
Q

Where is the ischial tuberosity located?

A

On the body of the ischium

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24
Q

Lower curved portion of the ischium that joins with the inferior portion on the pubis

A

Ramus of ischium

25
Q

Where is the obturator foramen situated?

A

Inferior to the acetabulum

26
Q

What is the obturator foramen enclosed by?

A

Body of ischium, ischial ramus, superior and inferior rami of the pubis

27
Q

T/F
The greater sciatic notch is made up of both ilium and ischium

A

True

28
Q

Forms the anterior part of the innominate bone

A

Pubis

29
Q

What is it called where the two pubis from each side join?

A

Symphysis pubis

30
Q

What are the 3 parts of the pubis?

A

Body, superior ramus, inferior ramus

31
Q

What part of the pubis is flat, extends to opposing body and is joined by cartilaginous disk at the symphysis

A

Body

32
Q

What part of the pubic body has a rounded upper border that projects forward?

A

Pubic crest

33
Q

T/F
The pubic tubercle is located on the external surface of body of the pubis, and is an attachment for a ligament

A

True

34
Q

Part of the pubis that extends laterally and slightly up to join the ilium and ischium at the acetabulum

A

Superior ramus

35
Q

Part of pubis that passes back, down, and laterally to join the ramus of the ishium

A

Inferior ramus

36
Q

A hemispherical cavity on the lateral surface of the coxal or innominate bone

A

Acetabulum

37
Q

What 3 parts contribute to the acetabulum?

A

Ilium, ischium, pubis

38
Q

Which way is the acetabulum directed?

A

Laterally, down, forward

39
Q

T/F
The acetabulum is surrounded by a prominent bony rim which is deficient inferiorly (acetabular notch) and enhanced by a cartilaginous rim (to deepen socket)

A

True

40
Q

If hip is dislocated, which direction will it most likely go?

A

Inferior
Because of acetabular notch

41
Q

T/F
The middle part of the acetabulum is not covered in cartilage

A

True
(Fovea of femur articulates)

42
Q

What causes the hip joint to be very stable?

A

-The shape of the head of the femur, and the acetabulum
-joint capsule and ligaments contribute to the joints stability

43
Q

What movements do the hip joint (synovial, ball and socket) allow for?

A

Flexion, extension, abduction, adduction, rotation, circumduction

44
Q

What are the articular surfaces of the hip joint?

A

Head of femur, acetabulum of innominate bone

45
Q

What type of joint is the symphysis pubis?

A

Amphiarthroses, cartilaginous symphysis

Articular surfaces: pubic bodies and articular disc
Movements: slight movement (minimal) with pressure

46
Q

What type of joints are the sacroiliac joints?

A

Synovial plane (gliding)

Articular surfaces: surfaces of ilium and sacrum

Movement: small rotational, gliding movement

47
Q

What is the appearance of the sacroiliac joints?

A

Bony and rough

Ilium and sacrum surfaces are not smooth

48
Q

What two parts is the pelvis divided into?

A

Greater pelvis (false pelvis)

Lesser pelvis (true pelvis)

49
Q

It is above the pelvic brim and is part of the abdomen

A

Greater pelvis / false pelvis

50
Q

It is below the pelvic brim. Smaller in size. Contains the reproductive organs, urinary bladder, pelvic colon and rectum

A

Lesser pelvis / true pelvis

51
Q

What divides the greater pelvis from the lesser pelvis?

A

Iliopectineal line

52
Q

Sacral promontory, anterior border of ala of the sacrum, iliopectineal line of the ilium and ischium, pubic crests and the superior border of the symphysis pubis

A

Pelvic inlet - boundaries

53
Q

A canal from the pelvic inlet to the outlet. Deeper posteriorly. Contains pelvic organs.
Boundaries : anterior pubic bones, posterior sacrum and coccyx, lateral ilium and ischium

A

Pelvic cavity

54
Q

Indented by ischial tuberosities, ischial spines and the sacrum and coccyx.
Boundaries : apex of sacrum, ischial tuberosities, ischial rami, inferior pubic rami and inferior border of symphysis pubis

A

Pelvic outlet

55
Q

Deep and funnel shaped with narrow pubic arch

A

Male pelvis

56
Q

Shallow, broad, and flaring with a wider pubic arch

A

Female pelvis

57
Q

-bones are larger and stronger
-false pelvis is narrower
-inlet of true pelvis is narrower and triangular
-ischial spines are closer together, therefore narrower outlet
-pubic arch is narrower (pubic angle)

A

Male pelvis

58
Q
A

Anatomy (16 decks)

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