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Y3 Reproductive > Anatomy Lecture 1 Pelvis > Flashcards

Anatomy Lecture 1 Pelvis Flashcards

1
Q

Which bones form the bony pelvis?

A

innominate bone
sacrum
coccyx

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2
Q

What is the innominate bone? How many do we have?

A

2

ilium, ischium, pubis

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3
Q

What are the beginning and end points of the iliac crest?

A

ASIS to PSIS

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4
Q

The ischium and pubis together form what bony feature of the pelvis?

A

Ishiopubic ramus

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5
Q

Can you palpate the ischial tuberosities?

A

yes

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6
Q

From a seated position, what part of the bony pelvis are you sitting on?

A

Ischial tuberosities

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7
Q

What bony feature of the pelvis is directly lateral to the pubic symphesis?

A

Pubic tubercles

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8
Q

Which sex is the pubic arch thicker in?

A

Males

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9
Q

What foramen lies between the ischiopubic ramus and the superior pubic ramus?

A

Obturator foramen

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10
Q

Name the 3 joints of the pelvis

A

sacroiliac joints
hip joint
pubic sympthesis

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11
Q

What type of joint is the hip joint?

A

synovial

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12
Q

What type of joint is the pubic symphysis?

A

secondary cartilaginous

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13
Q

What are the attachments of the inguinal ligaments?

A

ASIS to pubic tubercle

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14
Q

What bony features of the ilium are palpatable?

A

ASIS, iliac crest, PSIS

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15
Q

Can you palpate the ischial spines?

A

Only on vaginal examination (a finger breadth into the vagina at the 4 and 8 o’clock positions)

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16
Q

What is the clinical relevance of palpating the ischial spines?

A

Locating approximate position of femoral nerve for femoral nerve block during labour

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17
Q

What are the most important ligaments of the pelvis and what are their attachments?

A

sacrospinous: sacrum to iliac spine
sacrotuberous: sacrum to ischial tuberosity

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18
Q

Describe the course of the pudendal nerve through the pelvis

A 
Across iliac fossa
Out greater sciatic foramen
Directly back in lesser sciatic foramen
THIS IS NOT COMPLETE - FINISH
PUDENDAL CANAL
19
Q

When do the sacrotuberous and sacrospinous ligaments relax?

A

During late pregnancy

20
Q

What structures contribute to the pelvic inlet?

A

Sacral promontory
Ilium
Superior pubic ramus
Pubic symphysis

21
Q

What structures contribute to the pelvic outlet?

A 
Pubic symphysis
Ischiopubic ramus
Ischial tuberosities
Sacrotuberous ligaments 
Coccyx
22
Q

The pelvic cavity is continuous with the _____

A

abdominal cavity

23
Q

The pelvic cavity lies between the ____ and ____

A

pelvic inlet and plelvic floor

24
Q

What structure forms the pelvic floor?

A

Levator ani muscle?

25
Q

What nerve supplies the levator ani and what SC roots is it formed from?

A

Pudendal nerve (double check) S2, 3, 4 keep your guts off the floor

26
Q

What feature of the pubis is wider in a female compared to a male

A

Subpubic angle and pubic arch

27
Q

Is the pelvic cavity shallower in the female or male?

A

Female

28
Q

Are the AP and transverse diameters of the pelvic inlet wider in a male or female?

A

Female

29
Q

Are the AP and transverse diameters of the pelvic outlet wider in a male or female?

A

Female

30
Q

What suture of the foetal skull is between the parietal and occipital bones?

A

Lambdoid suture

31
Q

What suture of the foetal skull is between the parietal bones?

A

Sagittal suture

32
Q

What suture of the foetal skull is between the parietal and frontal bones?

A

Coronal suture

33
Q

Name the fontanelles of the foetal skull

A

Anterior and posterior fontanelle

34
Q

What is moulding?

A

Movement of one bone over another to allow the foetal head to pass through the pelvis during labour

35
Q

What is the name to the area of the foetal skull outlined by the anterior and posterior fontanelles and the parietal eminences

A

Vertex

36
Q

Name the 2 diameters of the foetal skull, which is wider?

A

Occipitofrontal wider than biparietal diameter

37
Q

At the pelvic inlet is the transverse or AP diameter wider?

A

AP

38
Q

What is the station?

A

Distance of the foetal head from the ischial spines

39
Q

What does a negative station mean?

A

Head is superior to the ischial spines

40
Q

At the pelvic outlet is the transverse or AP diameter wider?

A

AP

41
Q

What position should the foetal head be at the pelvic inlet?

A

Transverse

42
Q

What position should the foetal head be as it descends through the pelvic cavity?

A

Rotated and flexed (chin on chest)

43
Q

What position should the foetal head by at the pelvic outlet?

A

Occipitoanterior position with extended neck

Y3 Reproductive (28 decks)

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