Uterus: Body Parts And Supply

Question 1

Parts

Answer 1

1. Mesosalpinx
2. Mesovarium
3. Mesomatrium
4. Suspensory ligament of ovary (infundlbulopelvic ligament)

Question 2

Mesosalpinx

Answer 2

Part between uterine tube above and meso-ovarium below, suspensory ligament of ovary lateral, and ovarian ligament medial

Question 3

Mesovarium

Answer 3

1. Part between broad ligament posterior layer and ovary hilum
2. Carries vessels and nerves to ovary

Question 4

Mesomatrium

Answer 4

1. Main part
2. From uterine body to pelvic floor

Question 5

Suspensory ligament of ovary

Answer 5

1. Part extending from
   uterine tube infundibulum to lateral pelvic wall
2. Transmits ovarian vessels and nerves

Question 6

Blood supply

Answer 6

1. Uterine artery
2. Uterine vein

Question 7

Uterine artery origin

Answer 7

Anterior division of internal iliac artery

Question 8

Uterine artery course

Answer 8

1. Runs medial in broad ligament root on pelvic floor
2. Crosses above and at right angle to ureter 1 inch lateral to cervix
3. It reaches cervix at internal os level where it gives off descending branch to cervix and anastomoses with vaginal artery branches
4. It turns upwards along uterus lateral margin in broad ligament medial part in highly tortuous manner (to allow stretching as uterus grows in pregnancy)

Question 9

Uterine artery end

Answer 9

Near ovarian hilum by anastomosing with ovarian artery

Question 10

Uterine artery branches

Answer 10

1. Uterus
2. Uterine tube (medial 4/5)
3. Cervix
4. Vagina

Question 11

Uterine vein

Answer 11

1. Accompanies artery
2. Drains in internal iliac vein
3. It anastomoses with vaginal and ovarian venous plexuses

Question 12

Nerve supply

Answer 12

Inferior hypogastric plexus

Question 13

Lymph drainage

Answer 13

1. From cervix
2. From body upper part
3. From body lower part

Question 14

Lymph drainage from cervix

Answer 14

Lymph vessels pass:
1. Lateral: to external iliac nodes
2. Posterolateral: to internal iliac nodes
3. Posterior: to rectal and sacral nodes
4. Some vessels: to Obturator and gluteal nodes

Question 15

Lymph drainage from body upper part

Answer 15

1. To aortic nodes
2. Few to external iliac nodes
3. Part near uterine cornu to superficial inguinal nodes

Question 16

Lymph drainage from body lower part

Answer 16

To external iliac nodes

Question 17

Factors maintaining uterus position

Answer 17

1. Ligaments of cervix:
   - Pubocervical
   - Transverse ligament of cervix
   - Uterosacral ligaments
2. Round ligament of uterus: maintains anteverted anteflexed position
3. Pelvic diaphragm (levator ani muscles)
4. Urogenital diaphragm (deep perineal muscles)
5. Perineal body

Question 18

Applied anatomy: uterine prolapse

Answer 18

1. Damage of uterus ligaments during childbirth may result in uterus downward displacement (uterine prolapse)
2. It is usually accompanied by vagina prolapse due to attachment of cervix to vagina