Pelvic Cavity

Question 1

Pelvic cavity

Answer 1

Greater/false inlet: iliac crest, inguinal ligament, pubic symphysis
Lesser/true inlet: sacral promontory, margin of Ala, arcuate line to pubic symphysis
Pelvic floor: muscular diaphragm
Pelvic wall: bones and ligaments

Question 2

Male vs. Female pelvis

Answer 2

Inlet- heart shape : circle
Intrapubic angle- acute : obtuse
Shape- cone : cylinder

Question 3

Pelvic wall bones

Answer 3

Innominate and sacrum

Question 4

Pelvic wall joints

Answer 4

Sacroiliac joint (posterior) pubic symphysis (anterior)

Question 5

Pelvic wall ligaments

Answer 5

Sacrotuberous and sacrospinous

Question 6

Pelvic wall muscles (2)

Answer 6

Piriformis and obturator internus

Question 7

Orientation of innominate bones

Answer 7

4 SIS: transverse plane (S2)
ASIS and pubic symphysis: coronal place

Question 8

Pelvic outlets around wall

Answer 8

Greater (sup and inf)/lesser sciatic foreman
Obturator canal
Gap between inguinal lig and pelvic bone

Question 9

Greater sciatic foreman

Answer 9

Piriformis divides it into superior and inferior
Bones: ilium and ischium
Ligaments: posterior sacroiliac ligament, sacrotuberus lig, sacrospines lig

Question 10

Lesser sciatic foreman

Answer 10

Obturator internus muscle turning as anatomic landment imaging
Bone: ischium
Ligaments: sacroiliac, sacrospinous, sacrotuberous

Question 11

Ventral rami of spinal nerve roots

Answer 11

Lumbosacral trunk: L4-L5
Sacral spinal nerves: S1-S3

Question 12

Sacral plexus ventral divisions (tpp)

Answer 12

Tibial nerve L4-S3
Pudendal nerve S2 - S4
Pelvic splanchnic nerve S2 - S4

Question 13

Greater sciatic foreman crossing structures

Answer 13

Superior: superior gluteal nav
Inferior: sciatic nerve; pudendal/ inferior gluteal nav, posterior femoral cutaneous nerve, nerve to small hip ERs

Question 14

Lesser sciatic foreman structures

Answer 14

Pudendal nav
S2, S3, S4
Internal pudendal artery

Question 15

Pelvic diaphragm innervation

Answer 15

Pudendal nerve (S2-S4)

Question 16

Pelvic diaphragm parts (2)

Answer 16

1. Levator ani: puborectalis, pubococcygeus, iliococcygeus
2. Coccygeus ligament

Question 17

Male pelvic cavity

Answer 17

Urogenital system: urinary bladder, prostate gland, seminal vesicle
Digestive system: rectum

Question 18

Female pelvic cavity

Answer 18

Urogenital: urinary bladder, uterus, ovaries
Digestive: rectum

Question 19

Peritoneum in pelvic cavity: male

Answer 19

Proximal 1/3 of rectum and anterior surface of 2nd 1/3 of rectum
Superior surface of urinary bladder
Rectovesical pouch

Question 20

Peritoneal cavity in pelvis: female

Answer 20

Proximal 2/3 of anterior surface of rectum
Superior surface of urinary bladder
Most of uterus (intraperitoneal) and posterior surface of the ovary
Vesicouterine pouch and rectouterine pouch (pouch of Douglas)

Question 21

Urinary bladder: orientation/anatomy

Answer 21

Suspended by the median umbilical ligament (urachus)
Anteroinferior to parietal peritoneum
***Parietal peritoneum not fixed to anterior abdominal wall

Question 22

Urinary bladder: inside surface (2)

Answer 22

Smooth area: triangular (trigone), from opening of ureters to the internal urethral orifice
Corrugated area: detrusor muscles

Question 23

Urinary bladder

Question 24

Bladder and male genital system

Answer 24

Posterior inferior: prostate gland, walnut size, hypertrophy w/ aging
Posterior: seminal vesicle + ductus deferens to ampulla = ejaculatory duct
Function: nutrition support, neutralizing acidic environment

Question 25

Uterus: components

Answer 25

Uterine tube, body, cervix

Question 26

Uterine tube parts

Question 27

Uterus:

Question 28

Uterus positioning

Answer 28

Normal: Abnormal Clinical importance: cervical prolapse,

Question 29

Ovary

Answer 29

Primary retroperitoneal Connected to uterine body medically Laterally connected to one of the longest fimbria from the fimbriae of uterine tube

Question 30

Ovary: function

Answer 30

Initiates meiosis and releases secondary oocyte for fertilization Development of embryo and fetus End Erie

Question 31

Uterus and ovary ligaments

Answer 31

Broad ligament: 1. Mesos

Question 32

Uterus and vagina innervation

Answer 32

Anterior 1/3 of vagina: somatic only, pudendal nerve S2 -S4 Post

Question 33

Rectum

Answer 33

Distal 1/3 : Primary retroperitoneal Distal rectum forms a straight angle

Question 34

Anus

Answer 34

Pectinate line Internal an external sphincters Fecal continence

Question 35

Pectinate line

Answer 35

Columnar - squamous junction

Question 36

Lymph drainage in anus

Answer 36

Above pectinate line Below

Question 37

Anus innervation

Question 38

Perineum: triangles (2)

Answer 38

Urn genital -

Question 39

Urethra: female

Answer 39

Very short, equal to males membranous part, increased infection risk

Question 40

Urethra: male (4)

Question 41

Sexual differences

Question 42

Urinary bladder phases

Answer 42

A. Filling/storage phase B. Voiding/ micturition phase

Question 43

Bladder: filling phase

Question 44

Bladder: voiding phase

Question 45

Types of incontinence

Answer 45

Stress, urge, mixed (stress and urge), functional, overflow, transient (infection or medication)

Question 46

External genitalia: skeletal muscles

Answer 46

Ischiocaernousus and bulbospongiosus Innervated by pudendal nerve

Question 47

External genitalia: erectile tissues

Answer 47

Corpus cavernosum" crus Corpus