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Anatomy and Radiology Test 2 > Pelvis > Flashcards

Flashcards in Pelvis Deck (89)
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1

How is bony pelvis divided and what are regions

Superior peliv aperture (pelvic inlet)
False (greater) pelivs above
True (lesser) pelvis between inlet and outlet

2

Bony boundary of pelvic inlet

Pevlic brim

3

Position for pelvis exam

Lithotomy position

4

Pelvic outlet is also called

Inferior pelvic aperture

5

Midpelvic (tranverse) diameter

Line between ischial spaces
Smallest line that baby must pass through

6

Obstetric (true) conjugate

Line from the sacral promentory to the pubic symphysis
Shorter than diagonal

7

Diagonal conjugate and how to measure

Palpate sacral promontory...line extends to the inferior aspect of pubic symphysis...line will be longer than true conjugate

8

Sacrotuberous ligament attachments

Extends from sacrum to medial margin of ischial tuberosity

9

Sacrospinous attachments

From medial margin of lower sacrum to ischial spine

10

Obturator membrane closes off
Allows passage of

Most of obturator foramen
Obturator artery, vein, and nerve

11

Innfer surface of pelvis, hip bone, and sacrum, largerly covered by

Piriformis
Obturator internus

12

Pelvic diagphragm

Sling-like muscular structure covering pelvic floor

13

Posterior part of pelvic diaphragm and relative location to sacrospinous

Coccygeus
Deep

14

Anterior part of pelvic floor

Levator ani muscles

15

What do levator ani muscles arise from

Tendinous arch

16

What is tendinous arch

Thickening of fascia covering obturator internus muscle
Gives rise to levator ani muscles

17

Puborectalis muscle and what it is important for

Fibers of levator ani that loop around rectum
Maintaining fecal continenence

18

Levator ani muscle innervation

Sacral plexus

19

Perineum

Region below pelvic diaphragm

20

Deep pouch of the perineum composition and function

Composed of muscle, connective tissue, and neurovascular structures
Supports urogenital organs

21

Where does deep pouch not extend

Posteriorly past the ischial tuberosities to support the rectum

22

Perineal body

Midline know of fibrous connective tissue connecting pelvic floor and deep pouch of perineum

23

Damage to peliv floor, perineal body, or deep pouch can lead to

Incontinence, prolapse of the bladder or prolapse of the uterus through the vagina

24

3 systems of pelvic anterior to posterior

Urinary, reproductive, digestive

25

Rectum is continuation of what and begins where?

Sigmoid colon
Pelvic brim

26

Lumen of rectum exhibits what?

3 permanent transverse folds

27

Smooth muscle over rectum formed from

Taeniae coli of the colon

28

When is rectum renamed anal canal?

Region of perineum

29

Arterialy supply of rectum and origins

Superior rectal (from inferior mesenteric)
Middle rectal (from internal iliac)
Inferior rectal (from internal pudendal from internal iliac)

30

Venous return of rectum and where they drain to

Superior rectal vein (portal venous system)
Middle rectal vein (to internal iliac vein to IVC)
Inferior rectal vein (to internal pudendal vein to internal iliac vein to IVC)