Anatomy - Bony Pelvis, Pelvic Diaphragm And Anal Region

Front 1

These pelvic joints are synovial:

Back 1

Lumbosacral ligaments

Sacroilliac ligaments

Front 2

Dorsal sacral ligaments
Interosseous sacroiliac ligaments
Ventral sacroiliac ligaments

Accessory ligaments:
Sacrotuberous
Sacrospinous

Back 2

Sacroiliac ligaments

Front 3

Which ligaments limit axial rotation and help stabilize the lumbosacral joint?

Back 3

Lumbosacral ligaments

Front 4

The female pelvis is ______ (with larger apertures) and _____ than the male pelvis

Back 4

wider and shallower

Front 5

In the anatomical position, the _______ _____ iliac spines and pubic tubercles are in the same plane

Back 5

anterior superior iliac spine

Front 6

What divides the pelvis into greater and lesser divisions?

Back 6

Pelvic brim

Front 7

This part of the pelvis forms the inferior part of the abdominal cavity

Back 7

Greater pelvis

Front 8

Foramina located in this pelvis:

Back 8

Obturator foramina
Greater sciatic foramina
Lesser sciatic foramina

Front 9

This is measured during gynecologic exams

Back 9

Pelvi inlet/superior pelvic aperture

Front 10

This is the only muscle to pass through the lesser sciatic foramen

Back 10

Obturator internus

Front 11

This muscle supports most of the fecal mass and relieves pressure from the external anal sphincter

Back 11

Puborectalis.

Also forms a U-shaped rectal sling

Front 12

This muscle originates lon the tendinous arch formed by the obturator internus, as well as the ischial spine

Back 12

Iliococcygeus

Front 13

This collection of muscles raises the pelvic floor during vomiting, urination, etc

Back 13

Levator ani

Front 14

This region of the anal canal is supplied by:

- Autonomic innervation (GVA and GVE)
- Superior rectal vessels of the inferior mesentery system
- Lymphatics of internal iliac nodes

Back 14

Superior to pectinate line

Sensitve to stretching only.

Front 15

This region of the anal canal is supplied by:

- Somatic innervation from the pudendal nerve (ant. S2-4)
- Inferior rectal (hemorrhoidal) vessels of internal iliac
- Lymphatics of superficial inguinal nodes

Back 15

Inferior to pectinate line

Sensitive to pain, touch, and temperature

Front 16

The two ischioanal fossa communicate over the ____________ ligament

Back 16

anococcygeal

They are restricted anterioly by the deep fascia of the urogenital triangle.

Front 17

The muscle that overlies the anal triangle is the:

Back 17

gluteus maximus

Front 18

The ischioanal fossa contains these vessels:

Back 18

1. Internal pudendal vessels
2. Pudendal nerve

They run in the pudendal canal derived from the fascia of the obturator internus.

Front 19

The pudendal arteries and nerves give off:

Back 19

the inferior rectal vessels and nerves