Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Bloc I - Reproduction > Aug27 M1-Pelvis_Anatomy_lecture_1 > Flashcards

Aug27 M1-Pelvis_Anatomy_lecture_1 Flashcards

1
Q

3 bones of the pelvic girdle

A
  • hip bone
  • sacrum
  • coccyx
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

3 bones of the hip bone

A
  • ilium (to half of greater sciatic notch)
  • ischium (bottom back)
  • pubis (bottom front)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

baby pelvis vs adult pelvis

A

ilium, ischium and pubis separated bc still growing. (adult fused)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

landmarks of ilium

A
  • ala of the ilium (iliac wing (ala))
  • iliac crest (top near sacrum)
  • greater sciatic notch
  • ASIS
  • body of the ilium (near acetabulum, hip artic.)
  • gluteal surface (ant)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

ischium landmarks

A
  • body of ischium (near acetab.)
  • ischial spine
  • lesser sciatic notch
  • ischial tuberosity
  • ischial ramus (branch to pubis (in back of pubic branch) (ischiopubic ramus in adult)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

pubis landmarks

A
  • superior pubic ramus (lat)
  • pubic tubercle (very ant. near midline)
  • body of pubis (branch)
  • inferior pubic ramus (branch) (ischiopubic ramus in adult)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

definition of pubis, ilium, ischium body

A

initial center of ossification

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

inguinal lig from where to where

A

ASIS to pubic tubercle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

pubic crest def

A

pubic tubercle to midline (where rectus abdominis attaches)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

pubic arch def

A

angle between two ischiopubic rami on either side (two pubis)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

name of ischial ramus and pubic ramus in the adult

A

ischiopubic ramus (bc now fused)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

hole between pubis and ischium

A

obturator foramen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

landmarks of hip bone from an internal view (placed in middle of hip bone and looking at one side from inside)

A
  • iliac fossa
  • ASIS
  • iliac tuberosity (attachment of posterior sacroiliac ligaments) (below iliac crest)
  • symphyseal surface (articular surface of the pubic symphysis)
  • auricular surface of the ilium (articular surface of the sacroiliac joint)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

pubic symphysis is what

A

cartilage. it’s an immobile fibrocartilagenous joint between the two pubis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

sacroiliac joint is what type of joint

A

synovial (diff from symphyseal joint)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

2 lines visible from internal view of hip bone

A
  • ARCUATE line (from auricular surface of the ilium to the top of obturator foramen)
  • PECTINEAL line (from arcuate line (top of obt foramen) to symphyseal surface)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

landmarks on the sacrum

A
  • ala of the sacrum (near SI joint)
  • sacral promontory
  • body of the sacrum (midline)
  • lumbosacral joint (between L5 and S1) + its intervertebral disc
  • sacral canal (hole in midline with spinal cord)
  • anterior and posterior sacral foramina (holes)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

landmarks on coccyx

A

sacrococcygeal joint (cartilagenous joint), between the coccyx and the sacrum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

how to orient the pelvis correctly

A

ASIS and pubic tubercle on the same vertical plane (coronal)

pubic arch facing the ground

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

pelvic inlet (brim) and pelvic outlet def

A

circle of the superior hole of pelvis and inferior hole of pelvis (inferior hole more diamond shaped)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

(EXAM) what bones form the pelvic inlet (pelvic brim)

A
  • sacral promontory
  • ala of sacrum
  • arcuate line
  • pectineal line
  • pubic symphysis
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

(EXAM) what bones form the pelvic outlet (diamond shaped)

A
  • pubic arch (ant)
  • ischial tuberosity and ST lig (lat)
  • tip of coccyx (post)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

2 triangles in pelvic outlet

A
  • genital triangle in front

- anal triangle in the back

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

male vs female pelvis

A
  • male = squashed, narrow, deep

- female = oval, wide, shallow, roomy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

ligaments of the pelvis

A
  • iliolumbar lig (lumbar vert to ilium). quadratus lomborum attaches there
  • anterior and post sacroiliac lig (from sacrum to ilium)
  • inguinal lig
  • ST lig
  • SS lig
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

SS vs ST orientation

A

SS is deep to the ST (so more anterior than ST). both form the two sciatic foramens (greater and lesser)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

fct of SS and ST ligs

A

push sacrum outwards when pressure of the body pushes down on the pelvis

28
Q

piriformis m. O and I

A
  1. from anterolateral surface of the sacrum
  2. out of greater sciatic foramen
  3. inserts (tendon) on greater trochanter of the femur
29
Q

3 gaps in the 2 sciatic foramens

A
  • above and below piriformis

- lesser sciatic foramen

30
Q

coccygeus m. is O and I

A

O: SS lig and ischial spine. it points to the ischial spine
I: lat margin of the coccyx + related border of the sacrum

31
Q

obturator internus m. O and I

A
  • O: inside pelvis around obturator foramen

- I: greater trochanter of the femur

32
Q

how obturator internus exists the pelvis

A

through the lesser sciatic foramen

33
Q

what coccygeus m. helps form

A

pelvic floor, medially to the arcuate line. very bottom

34
Q

fcts of piriformis m. and obturator internus m.

A

lateral rotators of the thigh

35
Q

where sacral nerves come out of pelvis

A

anterior to piriformis m.

36
Q

obturator membrane is what

A

membrane filling the obturator foramen partially. the hole left on top is the actual obturator foramen

37
Q

obturator n. inn. what m.

A

medial thigh ADDuctors.

38
Q

how obturator n. reaches the medial thigh ADDuctors

A

through the obturator foramen

39
Q

2 muscles making up the pelvic floor

A
  • levator ani (3 parts)

- coccygeus

40
Q

tendinous arch def + runs where

A
  • band of thickened CT from the deep fascia of obturator internus. it is medial to the arcuate line
  • runs from ischial spine to the back of the pubis bone
41
Q

function of tendinous arch

A

attachment point for pelvic floor muscles

42
Q

muscles visible from top of pelvis looking down

A

back to front looking at the floor

  • piriformis
  • coccygeus
  • obturator internus (lat) and levator ani iliococcygeus
43
Q

coccygeus O and I

A

O: SS lig and ischial spine. it points to the ischial spine
I: lat margin of the coccyx + related border of the sacrum

44
Q

obturator internus O and I

A
  • O: inside pelvis around obturator foramen

- I: greater trochanter of the femur

45
Q

levator ani iliococcygeus O and I

A
  • O: tendinous arch

- I: inner surface of the coccyx

46
Q

levator ani 2 other parts

A

pubococcygeus

puborectalis

47
Q

pubococcygeus and puborectalis O and I

A

pubis to sacrum

48
Q

2 hiatus formed by levator ani

A
  • anal hiatus (for anal canal)

- urogenital hiatus (for urogenital system)

49
Q

how to know how a pelvis is positioned in anat exam

A
  1. look for the pubic symphysis

2. look at the urve of the sacrum

50
Q

order of position of rectum, cervix and urethra

A

anterior to posterior

  • urethra
  • cervix
  • rectum
  • all surrounded by levator ani*
51
Q

pelvic arteries from aorta to femoral a.

A
  • abdominal ao gives 1. ovarian aa (testicular arises from ao but DOES NOT enter the true pelvis. goes in inguinal canal) 2. superior rectal a. via the IMA 3. median sacral a. 4. common iliac aa
  • common iliac aa gives internal and external iliac aa
  • external iliac aa gives femoral a, deep circumflex a, inferior epigastic a
52
Q

branches of the internal iliac a. by branching groups

A

ant. and posterior. branches of the internal iliac

53
Q

post intern. iliac a. branches

A
  • iliolumbar a. (up)
  • superior gluteal a.
  • lateral sacral a. (down on sacrum) (with branches to the sacral foramena)
54
Q

ant intern. iliac a. branches

A
  • obliterated umbilical a.
  • obturator a.
  • uterine a. (in females)
  • vaginal a.
  • middle rectal
  • internal pudendal a.
  • inferior gluteal a.
55
Q

branches of the obliterated umbilical a.

A

vesical aa

56
Q

branches of the uterine a.

A

vaginal branch of the uterine a. (is diff from vaginal a. from ant internal iliac a.)

57
Q

where sup gluteal a. leaves the pelvis

A

above piriformis

58
Q

internal pudendal a. position

A

close to ischial spine and coccygeus

59
Q

arteries in pelvis from front to back

A
  1. obturated umbilical a.
  2. superior vesical a. (from oblit. umbilical a.)
  3. obturator foramen with obturator a.
  4. uterine a with its vaginal branch + vaginal a.
60
Q

accessory obturator a. def

A
  • the usual obturator a. is at its normal position
  • an extra obturator a. (accessory) is present, it comes from the inferior epigastric a. (which is from external iliac) and it crosses the pubis posteriorly from top to bottom
61
Q

aberrant obturator a. def

A

-obturator a. only present at one place, wrong place: off inferior epigastric a., off external iliac a.

62
Q

pelvic arteries in males diff with female

A
  • obturator a. comes off the inferior gluteal a.
  • internal pudendal a. comes off the middle rectal a.
  • no uterine and vaginal a.
  • the inferior vesical a. is certain in males (but not sure if present in females)
63
Q

inferior gluteal a. and internal pudendal a. ways they take

A
  • inferior glut a. out of pelvis under piriformis
  • internal pudendal a. out of greater sciatic foramen also below piriformis but then back in lesser sciatic foramen to feed pelvic floor (perineum)
64
Q

sup and inf vesical aa go where

A

to the bladder

65
Q

median and lat sacral aa origins

A
  • median sacral a. from abdominal ao (branches to sacral body)
  • lat sacral a from posterior internal iliac a. (branches to sacral foramina)
66
Q

veins names in pelvis (pelvic veins)

A

same as adjacent arteries

-all go to internal iliac v, common iliac v., IVC

67
Q

pelvic veins that don’t drain in the systemic circulation (IVC)

A

superior rectal v.. goes to IMV to splenic v to portal circulation (rectum part of digestive tract)

Bloc I - Reproduction (57 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions