Pelvis Flashcards Preview

Gross II Final > Pelvis > Flashcards

Flashcards in Pelvis Deck (73)
Loading flashcards...
1

What are the four functions of the pelvis?

Locomotion, parturition, support of abdominal viscera, protection of pelvic viscera

2

What is necessary for the pelvis to maintain to permit efficient bipedal locomotion?

Small enough pelvic dimensions

3

What is necessary for the pelvis to maintain to permit passage of the fetal head during parturition?

Large enough pelvic dimensions

4

What structures are shaped to support abdominal structures in the pelvic region?

Laterally flaring ilia

5

In what part of the pelvis does protection of the pelvic viscera take place?

True pelvis

6

What shape is the overall pelvis?

Basin-shaped

7

What four bones make up the pelvis?

Left hip bone, right hip bone, sacrum, coccyx

8

What three bones make up each hip bone?

Ilium, ischium, pubis

9

In anatomical position, what parts of the pelvis lie in the same vertical plane in the pelvic tilt?

ASIS and upper margin of the pubic symphysis

10

In anatomical position, what parts of the pelvis lie in the same horizontal plane in the pelvic tilt?

Tip of the coccyx and the upper margin of the pubic symphysis

11

The pelvic cavity projects in which direction from the abdominal cavity?

Posteriorly

12

What is the superior aperture of the pelvis?

Pelvic inlet

13

What are the boundaries of the pelvic inlet?

Sacral promontory, sacral alae, arcuate line, pecten pubis (pectineal line), pubic crest

14

What is the continuous border formed by the boundaries of the pelvic inlet called?

Pelvic brim/linea terminalis

15

The area of the pelvis located above the pelvic brim is called what?

Greater (false) pelvis

16

The area of the pelvis located below the pelvic brim is called what?

Lesser (true) pelvis

17

What is the function of the greater (false) pelvis?

Supports abdominal viscera, point of attachment for muscles of locomotion

18

What is the pelvic cavity proper?

Lesser (true) pelvis

19

What does the true pelvis contain?

Lower part of the GI tract, urinary bladder, lower part of ureter, internal reproductive organs

20

What is the inferior aperture of the pelvis?

Pelvic outlet

21

What shape is the pelvic inlet?

Oval or heart-shaped

22

What shape is the pelvic outlet?

Diamond shaped

23

What are the boundaries of the pelvic outlet?

Pubic symphysis, ischiopubic rami, ischial tuberosities, sacrotuberous ligament, tip of the coccyx

24

What makes up the pubic arch?

Pubic symphysis, ischiopubic rami, and ischial tuberosities

25

What covers the entire pelvic outlet?

Perineum

26

What characterizes an anthropoid pelvis?

Long A-P diameter and short transverse diameter

27

What type of pelvis is present in some males and approximately 20% of females?

Anthropoid

28

What is the rarest pelvis type?

Platypelloid

29

What characterizes a platypelloid pelvis?

Short A-P diameter and wide transverse diameter

30

What type of pelvis is rare in males and present in 2% of females?

Platypelloid