Chapter 5: Pelvis & Perineum Flashcards Preview

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Flashcards in Chapter 5: Pelvis & Perineum Deck (257)
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1

divided into the false pelvis and true pelvis

pelvis

2

the superior region and contains the upper parts of the pelvic bones and lumbar vertebrae

false pelvis

3

contains the inferior part of the pelvic bones, sacrum, coccyx, and pelvic outlet

true pelvis

4

inferior to the floor of the pelvic cavity and contains external genitalia, and opening to the genitourinary and gastrointestinal systems

perineum

5

Contains and supports bladder, rectum, anal canal, and reproductive tracts

pelvis

6

contains most of the reproductive tract in women and some of it in men

pelvic cavity

7

passes through the pelvic floor to the perineum where it opens externally

urethra in women

8

passes through the floor of the pelvic cavity to the perineum and passes into the base of the penis

urethra in men

9

-the site of connection between the reproductive and urinary systems
-contains major reproductive glands

pelvic cavity in men

10

-firmly anchored to the bony margin of the pelvic outlet and the fibrous perineal membrane
-contain erectile vascular tissue and skeletal muscle

roots of the external genitalia

11

bony ring formed by the sacrum, pelvic bones, and pubic symphysis

pelvic inlet

12

mostly formed by bone, muscle, and ligaments

pelvic walls

13

form most of the pelvic walls

-sacrum
-coccyx
-pelvic bones

14

form part of the pelvic wall and help form the greater and lesser sciatic foramina

sacrotuberous and sacrospinous ligaments

15

-complete the pelvic walls
-arise in the pelvis and exit through the sciatic foramen to act on the hip joint

piriformis and obturator internus muscles

16

formed by the bony pubic arch and the sacrotuberous ligaments

pelvic outlet

17

formed by muscle and fascia and separates the pelvic cavity from the perineum

pelvic floor

18

form most of the bowl shaped pelvic diaphragm

2 levator ani muscles
-(iliococcygeus and
pubococcygeus)

19

fascial sheath that fills the space between the arms of the pubic arch

perineal membrane

20

-continuous with the peritoneum of the abdominal cavity
-drapes over the superior aspect of the pelvic viscera and in most cases does not reach the pelvic floor

peritoneum of the pelvic cavity

21

lie on the midline of the pelvic cavity

pelvic viscera

22

divides the perineum into the urogenital triangle and the anal triangle

imaginary line

23

contains the roots of the external genitalia

urogenital triangle

24

contains the openings to the vagina and urethra

urogenital triangle in women

25

enclosed in erectile tissue and opens at the end of the penis

urethra in men (urogenital triangle)

26

what do all structures passing between the pelvic and abdominal cavities pass through?

pelvic inlet

27

what are the 3 apertures in the pelvic wall that communicate with the lower limb?

-Greater sciatic foramen
-Lesser sciatic foramen
-Obturator foramen

28

allows communication between the pelvic cavity and perineum

A gap between the pubic symphysis and the perineal membrane

29

what is the position of the pelvic cavity in anatomical position?

**tilted forward 50°-60°
-means the anal triangle
faces posteriorly while
the urogenital triangle
faces inferiorly

30

connect the kidneys to the bladder and are located on the lateral wall of the pelvic cavity

ureters