1. Bony Pelvis and Pelvic Wall (A. Wang) Flashcards Preview

14. Endo-Repro Test 2 > 1. Bony Pelvis and Pelvic Wall (A. Wang) > Flashcards

Flashcards in 1. Bony Pelvis and Pelvic Wall (A. Wang) Deck (25)
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1
Q

What is the anatomical position for the innominate?

A

The position in which the ASIS and anterior pubis are in the same vertical plane.

2
Q

Wire adults more likely to develop pelvic fractures than children?

A

Because the pelvis is fused after puberty, but connected with cartilage before that.

3
Q

Identify the arrows.

A
4
Q

What are the four weak points for pelvic fractures?

A

Pubic rami.

Acetabulum.

Sacroiliac joints.

Iliac ala.

5
Q

Is the greater pelvis shallower in the female or the male?

A

It is shallower in the female.

6
Q

Is the true pelvis narrower and deeper in the male or female?

A

The true pelvis is narrow and deep in the male – shallow and wide in the female.

7
Q

Is the pelvic aperture wider in males or females?

A

The pelvic aperture is wider in females.

8
Q

How wide is the typical male subpubic angle?

How wide is the typical female subpubic angle?

A

The male subpubic angle is typically less 70°.

The female subpubic angle is typically greater than 90°

9
Q

How does the obturator foramina differ in the male and female?

A

The male obturator foramen is typically round.

The female obturator foramen is typically oval.

10
Q

Is the acetabulum larger in the male or the female?

A

The acetabulum is larger in the male.

11
Q

Is the greater sciatic notch larger in the male or the female?

A

The greater sciatic notch is larger – around 90° – in the female.

The greater sciatic notch is smaller – around 70° – in the male.

12
Q

What is the tendinous arch of the levator ani made of?

A

A thickening of the obturator internus fascia.

13
Q

What does the tendinous arch of the levator ani separate?

A

The pelvic region and the peroneal region of the obturator internus.

14
Q

From medial to lateral, what are the three muscles of the levator ani?

A

Puborectalis.

Pubococcygeus.

Iliococcygeus.

15
Q

What portion of the pelvic floor helps promote fecal continence?

A

The puborectal sling.

16
Q

What two muscles of the pelvic floor are most prone to tearing during childbirth?

A

The puborectalis and pubococcygeus muscles.

17
Q

The ischiorectal fossa can be divided into what two regions?

A

The urogenital triangle and the anal triangle.

18
Q

What portion of the anal canal secretes mucus to aid in defecation?

A

Anal sinuses.

19
Q

What are the three parts to the external anal sphincter?

A

Deep, superficial, and subcutaneous.

20
Q

Which anal sphincter is under voluntary control?

A

The external anal sphincter.

21
Q

What is the nerve supply, blood supply, venous supply, and lymphatic drainage above the pectinate line?

A

Nerves: Inferior Hypogastric Plexus.

Blood: Inferior Mesenteric A.

Veins: Superior Rectal Veins (Portal System).

Lymph: Internal Iliac Lymph Nodes

22
Q

What is the nerve supply, blood supply, venous drainage, and lymphatic drainage below the pectinate line?

A

Nerves: Inferior Rectal Nerves (somatic).

Blood: Internal Iliac.

Veins: Inferior Rectal Veins (Systemic).

Lymph: Superficial Inguinal Lymph Nodes.

23
Q

What is the lymphatic drainage for the superior rectum?

A

Superior rectum -> pararectal lymph nodes -> sacral lymph nodes -> inferior mesenteric lymph nodes.

24
Q

What is the lymphatic drainage for the inferior rectum?

A

Internal iliac lymph nodes.

25
Q

What is the lymphatic drainage for the anal canal?

A

Superficial lymph nodes.