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OBSTETRICS 2.0 > 2.1 Passage > Flashcards

2.1 Passage Flashcards

1
Q

Narrowest portion of the pelvic INLET

A

Obstetric conjugate

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1
Q

Distance from the upper margin of the pubis to the sacral promontory

A

True/anatomical conjugate

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2
Q

Part of the pelvis above the linea terminalis wth no obstetrical significance.

A

False (MAjor) Pelvis

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2
Q

Structures of the posterior border of true pelvis

A

Sacrum and coccyx

Remember:

Posterior: anterior surface of sacrum, coccyx
 Lateral: ischial spine/bones, sacrosciatic notch and ligament
 Anterior: pubis, obturator foramen, pubic rami
 Inferior: ischial tuberosity
 Superior: linea terminalis

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2
Q

This is the joint between the sacrum and the iliac portion of innominate bones

A

Sacroiliac joint

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2
Q

What is the normal value of the obstetric conjugate?

A

10 cm

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3
Q

A pelvic joint that consists of fibrocartilage and the superior and inferior pubic ligaments

A

Symphysis pubis

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4
Q

What is the normal angle of the pubic arch?

A

90-100 degrees

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5
Q

The only AP diameter that can be measured clinically by doing an internal examination

A

Diagonal conjugate

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7
Q

The bony pelvis is made up of how many bones?

A

Four!

(2) innominate bones (ilium, ischium, pubis)
(1) sacrum
(1) coccyx

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8
Q

This position causes the greatest upward gliding movement of sacroiliac joints thus increasing the diameter of outlet by 1.5-2.0 cm

A

Dorsal Lithotomy Position

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9
Q

True conjugate = ? (formula)

A

TC = DC - 1.2 cm

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10
Q

Enumerate the different planes of the pelvis. (3)

A

Pelvic inlet

pelvic outlet

pelvic midplane

Actually 4 pero no OB significance daw to:

plane of greatest dimensions: AP & transverse diameter is 12.5

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11
Q

What is the inferior border of false pelvis?

A

Linea terminalis

Remember:

 Posterior: lumbar vertebra
 Lateral: iliac fossa
 Anterior: abdominal muscles
Inferior: linea terminalis

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12
Q

the greatest distance between linea terminalis on either side (NV >13.5cm)

A

Transverse diameter of the pelvic INLET

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13
Q

Extend from the sacroiliac synchondrosis to the iliopectineal prominence of the opposite side of the pelvis

A

Oblique diameter of the pelvic inlet

15
Q

OB conjugate, diagonal conjugate and true/anatomical conjugate are the _____ diameter of the pelvic inlet

A

antero-posterior diameter

17
Q

Distance from the lower margin of the pubis to the sacral promontory. (NV > 11.5 cm)

A

Diagonal Conjugate

18
Q

The shortest distance between the promontory of the sacrum and symphysis pubis

A

Obstetric conjugate

19
Q

How many centimeters will you (subtract/add?) from the diagonal conjugate to get the Obstetric conjugate?

A

SUBRTACT 1.5-2.0 cms

20
Q

This is the rounder arch formed by descending inferior rami of pubic bones at angle of 90-100 degrees

A

Pubic arch

21
Q

Estimates pelvic inlet by internal exam

A

Clinical Pelvimetry

23
Q

What separates the false pelvis from the true pelvis?

A

Linea terminalis

24
Q

What do you mean by fetus is engaged?

A

If the BI-PARIETAL diameter of the fetal head has passed through the pelvic inlet

25
Q

Identify A, B, C and E.

A

A = sacral promotory

B = True/anatomical conjugate

C = diagonal conjugate

E = pelvic inlet

26
Q

Narrowest portion of the ENTIRE pelvis.

A

Pelvic midplane diameter

27
Q

Pelvic midplane is at the level of what structure in the pelvis?

A

ischial spine

28
Q

Most common type of pelvis that is found in almost 50% of women.

A

Gynecoid pelvis

29
Q

Anterior diameter of the inlet is greater than the transverse resulting in oval anteroposteriorly. What pelvic shape?

A

Anthropoid

30
Q

Rarest form of pelvic shape.

A

Platypelloid

31
Q

Posterior sagittal diameter at the inlet is much shorter than the anterior sagittal diameter . What pelvic shape?

A

Android

32
Q

Sinong doktor ang mahilig magkamot?

A

Doc maka-Teh

OBSTETRICS 2.0 (3 decks)

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