Pelvis ligaments, ducts, and non-repro organs

Question 1

Round ligament of uterus origin

Answer 1

Lateral wall of uterus

Question 2

Round ligament of uterus distribution

Answer 2

Travels through inguinal canal to labia majora

Note: Developmental remnant of a ligament that enables inferior migration of gonads in development

Question 3

Spermatic cord origin

Answer 3

Abdominal wall

Question 4

Spermatic cord distribution

Answer 4

Layers of fascia encircle the ductus deferens and testicular vessels

Note: Layers of the cord match to layers of the abdominal wall

Question 5

Inguinal ligament origin

Answer 5

Anterior superior iliac spine

Question 6

Inguinal ligament distribution

Answer 6

Runs medially to pubic tubercle

Note: Forms floor of the inguinal canal, roof of the femoral triangle. Structures that traverse into the thigh pass underneath this ligament. Femoral hernias pass under this ligament

Question 7

Deep inguinal ring origin

Answer 7

NA

Question 8

Deep inguinal ring distribution

Answer 8

Outpocketing of abdominal cavity into abdominal wall just lateral to epigastric vessels

Note: Internal opening of the inguinal canal

Question 9

Inguinal canal origin

Answer 9

NA

Question 10

Inguinal canal distribution

Answer 10

Medially directed canal that runs between the deep inguinal ring and the superficial inguinal ring

Note: Testes pass through these in development-testicular vessels and ductus deferens travel through the canal in males, in females the round ligament of the uterus travels through the canal

Question 11

Superficial inguinal ring origin

Answer 11

NA

Question 12

Superficial inguinal ring distribution

Answer 12

Split in external oblique fascia

Note: External opening of the inguinal canal

Question 13

Sacrotuberous ligament origin

Answer 13

Posterior sacrum

Question 14

Sacrotuberous ligament distribution

Answer 14

Ischial tuberosity

Note:Together with sacrospinous ligament forms lesser sciatic foramen for pudendal nerve/vessels

Question 15

Sacrospinous ligament origin

Answer 15

Posterolateral sacrum

Question 16

Sacrospinous ligament distribution

Answer 16

Ischial spine

Note: Together with sacrotuberous ligament forms lesser sciatic foramen for pudendal nerve/vessels

Question 17

Ureter arises from

Answer 17

Renal pelvis

Question 18

Ureter enters

Answer 18

Bladder

Note: Passes inferiorly over external iliac artery/pelvic inlet-common location for kidney stone lodging, another location is the junction between renal pelvis and ureter, and between the ureter and bladder

Question 19

Bladder function

Answer 19

Store urine, contract to release urine

notes: Bladder pain pathways dependent on pelvic pain line-degree of bladder inflation impacts this

Question 20

Bladder blood supply

Answer 20

branches of internal iliac artery to bladder

Question 21

Bladder innervation

Answer 21

Pelvic splanchnic nerves (S2-4; parasympathetic), Abdominal sympathetic chain (L1-L2; sympathetic); sensory pathways: unconcious/reflex (pelvic splanchnic), pain (superior-sympathetic, inferior-pelvic splanchnic)

Question 22

Urethra function

Answer 22

Drains bladder

Note: Divided into 3 parts in males (prostatic around prostate, membranous in perineum, spongy in penis); much shorter in females

Question 23

Urethra blood supply

Answer 23

Internal-see bladder;
External: Internal pudendal vessels

Question 24

External Urethra innervation

Answer 24

Pudendal nerve