S3L2: Four Main Shapes of Pelvis

Question 1

What are the 4 main shapes of a female pelvis?

Answer 1

● Gynecoid
● Arthropoid
● Platypelloid
● Android

Question 2

Intro

Female type (Most common variety)

● Gynecoid
● Arthropoid
● Platypelloid
● Android

Answer 2

Gyencoid Pelvis

Question 3

Intro

Male type pelvis

● Gynecoid
● Arthropoid
● Platypelloid
● Android

Answer 3

Android Pelvis

Question 4

Intro

Ape like pelvis

● Gynecoid
● Anthropoid
● Platypelloid
● Android

Answer 4

Anthropoid Pelvis

Question 5

Intro

Flat pelvis and the least common variety

● Gynecoid
● Arthropoid
● Platypelloid
● Android

Answer 5

Platypelloid Pelvis

Question 6

RELATIONSHIP OF TRANSVERSE DIAMETER TO AP DIAMETER OF INLET

Transverse diameter of
inlet is slightly bigger than
AP diameter

● Gynecoid
● Arthropoid
● Platypelloid
● Android

Answer 6

Gynecoid Pelvis

Question 7

RELATIONSHIP OF TRANSVERSE DIAMETER TO AP DIAMETER OF INLET

Transverse diameter is > AP

● Gynecoid
● Arthropoid
● Platypelloid
● Android

Answer 7

Android Pelvis

Question 8

RELATIONSHIP OF TRANSVERSE DIAMETER TO AP DIAMETER OF INLET

The only pelvis with AP
diameter > transverse
diameter

● Gynecoid
● Arthropoid
● Platypelloid
● Android

Answer 8

Anthropoid Pelvis

Question 9

RELATIONSHIP OF TRANSVERSE DIAMETER TO AP DIAMETER OF INLET

Pelvis with a Transverse
diameter&raquo_space;> (much more
than) AP diameter

● Gynecoid
● Arthropoid
● Platypelloid
● Android

Answer 9

Platypelloid Pelvis

Question 10

Suprapubic angle

90°

● Gynecoid
● Arthropoid
● Platypelloid
● Android

Answer 10

Gynecooid Pelvis

Question 11

Suprapubic angle

<90°

● Gynecoid
● Arthropoid
● Platypelloid
● Android

Answer 11

Android Pelvis

Question 12

Pelvic Sidewall

Straight and parallel

● Gynecoid
● Arthropoid
● Platypelloid
● Android

Answer 12

Gynecoid Pelvis

Question 13

Pelvic Sidewall

Convergent

● Gynecoid
● Arthropoid
● Platypelloid
● Android

Answer 13

Android Pelvis

Question 14

Pelvic Sidewall

Narrow

● Gynecoid
● Arthropoid
● Platypelloid
● Android

Answer 14

Anthropoid Pelvis

Question 15

Pelvic Sidewall

Divergent

● Gynecoid
● Arthropoid
● Platypelloid
● Android

Answer 15

Platypelloid Pelvis

Question 16

Obstetric Outcome

Normal female pelvis.
No difficulty in engagement.
Most common position of head: Left occiput transverse /Left occiput anterior

● Gynecoid
● Arthropoid
● Platypelloid
● Android

Answer 16

Gynecoid Pelvis

Question 17

Obstretic Outcome

Engagement is delayed and Deep transverse arrest/persistent occipito-posterior position common

● Gynecoid
● Arthropoid
● Platypelloid
● Android

Answer 17

Android Pelvis

Question 18

Obstetric Outcome

Diameter of engagement is AP diameter

● Gynecoid
● Arthropoid
● Platypelloid
● Android

Answer 18

Anthropoid Pelvis

Question 19

Obstetric Outcome

Direct occipito-posterior
position is M/C

● Gynecoid
● Arthropoid
● Platypelloid
● Android

Answer 19

Anthropoid Pelvis

Question 20

Obstretic Outcome

Nonrotation is common

● Gynecoid
● Arthropoid
● Platypelloid
● Android

Answer 20

Anthropoid Pelvis

Question 21

Obstretic Outcome

Head engages in
transverse diameter with
marked asynclitism.

● Gynecoid
● Arthropoid
● Platypelloid
● Android

Answer 21

Platypelloid Pelvis

Question 22

Obstretic Outcome

Engaging diameter is supersubparietal diameter
(18.5cm) instead of usual
biparietal diameter (9.5cm)

● Gynecoid
● Arthropoid
● Platypelloid
● Android

Answer 22

Platypelloid Pelvis

Question 23

Type of Delivery

Normal delivery

● Gynecoid
● Arthropoid
● Platypelloid
● Android

Answer 23

Gynecoid Pelvis

Question 24

Type of Delivery

Difficult instrumental
delivery

● Gynecoid
● Arthropoid
● Platypelloid
● Android

Answer 24

Android Pelvis

Question 25

# Type of Delivery Face to pubes delivery ## Footnote ● Gynecoid ● Arthropoid ● Platypelloid ● Android

Answer 25

Anthropoid Pelvis

Question 26

# Type of Delivery If head is able to negotiate the inlet by means of asyncliticism, then normal labor, otherwise, cesarean section ## Footnote ● Gynecoid ● Arthropoid ● Platypelloid ● Android

Answer 26

Platypelloid Pelvis

Question 27

# T/F: The engaging diameter in Platypelloid Pelvis is biparietal diameter (9.5 cm) instead of usual supersub parietal diameter (18.5 cm)

Answer 27

False ## Footnote Engaging diameter is supersub parietal diam (18.5cm) instead of usual biparietal diam (9.5)

Question 28

# T/F The cavity of the true pelvis in female is broad, shallow, and has a greater capacity ## Footnote General structure and functional modifications

Answer 28

True ## Footnote The cavity of the true pelvis is narrow and deep in MALE PEVIS.

Question 29

# Modified T/F A. The female pelvis is tilted less forward as it is adapted for child bearing B. The male pelvis is titlted forward because it is adapted for support of a male's heavier build and stronger muscles ## Footnote General structure and functional modifications

Answer 29

FF ## Footnote Female - Titled forward Male - Titles less far forward

Question 30

# Modified T/F A. The bone thickness of female pelvis is lesser compared to males B. Additionally, their bones have markings that are more prominent compared to males ## Footnote Bone thickness

Answer 30

TF ## Footnote Markings are more prominent in male pelvis

Question 31

# Modified T/F A. The bones of female pelvis are lighter thinner and smoother B. The bones of male pelvis are heavier and thicker ## Footnote Bone thickness

Answer 31

TT

Question 32

# Modified T/F A. The acetabula in female pelvis are smaller and closer B. The acetabula of male pelvis are larger and farther apart ## Footnote Acetabula

Answer 32

FF ## Footnote Female: smaller and FATHER APART Male: larger and CLOSER

Question 33

# Modified T/F A. The angle of female pelvis is Broader (80° to 90°); more rounded B. The angle of male pelvis is more acute (50° to 60°) ## Footnote Angle/Arch

Answer 33

TT