Conference 20: Organization of Pelvis and Perineum

Question 1

What 3 bones form the bony pelvis?

Answer 1

1. Sacrum 2. Os coxae 3.Coccyx

Question 2

Name the 3 major bones that form the hip bone

Answer 2

1. Ilium 2. Ischium 3. Pubis

Question 3

Name the major parts of the ileum

Answer 3

1. Ala of ilium
2. Aterior Superior Iliac Spine (ASIS)
3. Greater Sciatic Notch
4. Iiac crest
5. Arcuate line

Question 4

Name the parts of the pubis

Answer 4

1. Superior pubic ramus
2. ishiopubic ramus
3. boduy
4. pubic symphasis
5. pubic tubericle
6. Pectin pubis

Question 5

Name the parts of the ischium

Answer 5

1. Ischial spine
2. Lesser sciatic notch
3. Ischial tuberosity
4. Ischiopubic ramus

Question 6

The pelvic region lies between _____ and ______

Answer 6

pelvic inlet and pelvic diaphragm

Question 7

Pelvic inlet boundaries?

Answer 7

1. sacral prominetory
2. Sacral ala
3. arcuate line
4. pectin pubis
5. pubic tubercle
6. pubic crest
7. pubic symphasis

Question 8

Name the boundaries of the pelvic outlet

Answer 8

1. pubic symphasis (point of diamond anteriorly)
2. ishiopubic ramus
3. ischial tuberosity
4. sacrotuberous ligament
5. coccyx (point of diamond posteriorly)

Question 9

What muscle arrises on the inner surfce of the obturator foramen and then exits the pelvis out of the lesser sciatic foramen?

Answer 9

Obturator internus

Question 10

What muscle exits through the greater sciatic foramen?

Answer 10

Piriformis

Question 11

What muscles make up the pelvic diaphragm?

Answer 11

1. Levator ani
2. Coccygeus

Question 12

Why is the pelvic diaphrahm clincially important?

Answer 12

because when there is muscular atrophy, the pelvic diaphragm becomes weak and there can be prolapse of viscera (uterus, bladder, etc)

Question 13

What are the openings in the pelvic diaphragm in MALES

Answer 13

1. urethera
2. anal canal

Question 14

What are the openings in the pelvic diaphragm in FEMALES?

Answer 14

1. urethra
2. vagina
3. anal canal

We have more cus were better :)

Question 15

What two structures reinforce the openings of the pelvic diaphragm?

Answer 15

1. peritoneal membrane
2. external anal sphincter

Question 16

PERINEUM BOUNDARIES?

Answer 16

anterior, posterior and lateral boundary is the PELVIC OUTLET

inferior boundary is SKIN

Question 17

What are the major contents of the anal triangle?

Answer 17

1. anal canal
2. ischioanal fossa

Question 18

What are the BOUNDARIES of the ishialanal fossa

Answer 18

medial: pelvic diaphragm & external anal sphincter
lateral: obturator internus & pudendal canal & ischial tuberosity
inferior: skin

Question 19

What are the contents of the UG triangle

Answer 19

listed anterior to posterior

1. superficial features of external genitalia
2. superficial perineal fascia –> 2 layers (deep layer= colles fascia)
3. perineal space

Question 20

What are the boundaries of the perineal space?

Answer 20

superior- perineal membrane

lateral- ischiopubic ramus

inferior- colle’s fascia

Question 21

What are the contents of the perineal space in a MALE?

Answer 21

1. crura of corposa cavernosa
2. ischiocavernosus muscle
3. bulb of corpus spongiosun
4. bulbospongeous muscle

Question 22

What are the contents in the perineal space in FEMALES

Answer 22

1. crura of the clitoris
2. ischiocavernosus muscle
3. bulb of the vestibule
4. bulbospongiousus muscle
5. greater vestibular gland (NOT IN MALES)

Question 23

What are the difference in the structures below the perineum membrane in a male versus female?

Answer 23

Females do NOT have the bulborethra gland