Week 5.0 - Female reproductive tract Flashcards Preview

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Flashcards in Week 5.0 - Female reproductive tract Deck (32)
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What is the gubernaculum?

-Structure in both males and females which tethers the gonads to the labialscrotal folds
-Becomes round ligament of uterus in women


Describe the arterial supply and venous drainage of the ovary

-Arterial supply directly from abdominal aorta
-Venous drainage R ovarian vein -> IVC L ovarian vein -> L renal vein -> IVC


Name the parts of the uterus



Which part of the uterus can be palpated during pregnancy?



Name the pouches of the pelvis, relative to the uterus

-Uterovesicle pouch anteriorly
-Rectouterine pouch (pouch of douglas) posteriorly


Why are the peritoneal pouches of clinical significance?

-Fluid can collect here


Describe the descent of the ovary

-Gonads develop within urogenital ridge on posterior abdominal wall
-Descend through abdomen behind peritoneum
-Stop in the pelvis as physically obstructed by developing paramesonephric ducts


Describe the development of the uterus and uterine tubes

-Paramesonephric ducts begin to develop and they open into the peritoneum cranially and attached to the urogenital sinus caudally
-In the absence of MIH they ducts grow towards each other and fuse in the midline
-This forms the uterus which is covered by broad transverse fold of peritoneum as it pulls it with it


What is the broad ligament? Describe its sections

-Mesentery of the uterus, uterine tube and ovary which attaches them to the side walls and floor of the pelvis
-Formed by a transverse fold of peritoneum which contains the uterine tubes and ovarian vessels
-Mesometrium is the section covering the uterus
-Mesosalpinx is the section covering the uterine tube
-Mesovarium is the segment covering the ovary


Why is it important that the broad ligament is mobile?

-Allows mobility so ovary catches gamete


What is the round ligament?

-Remnant of the gubernaculum
-Attaches ovary to labia majora via the inguinal canal
-Round ligament of the ovary from ovary to reflect of sidewall of uterus where it becomes round ligament of uterus


In which ligament are the uterine vessels?

-Broad ligament


What is the suspensory ligament?

-Fold of peritoneum which extends from the ovary to the side wall of the pelvis (extension of broad ligament)
-Contains ovarian vessels, nerves and lymphatics


In what position does the uterus lie?

-Anteverted (with respect to vagina)
-Anteflexed (with respect to cervix)


Name the sections of the uterine tube

-Abdominal ostium


What is the function of the uterine tube?

-Conduct the oocyte into uterine cavity
-Site of fertilisation


Why is it significant that the lining of the uterine tube is different to the lining of the uterine cavity?

-Ectopic implantation can lead to severe haemorrhage due to lack of decidual cells to monitor implantation and closely associated with many vessels


Why is it clinically significant that the peritoneal cavity is open to the vagina?

-Spread of infection


Describe the main features of the cervix

-Internal os
-Endocervical canal
-External os
-Anterior, posterior and lateral fornices


How is the pouch of douglas accessed?

-Through the posterior fornix (culdocentesis)


What is the main support of the pelvic viscera?

-Transverse cervical ligament -> tickening at base of broad ligament to give the viscera lateral stability
-Uterosacral ligament-> opposes pull of round ligament and assists in maintaining anteversion


Name the main arteries supplying the female internal genitalia

-Ovarian artery (br abdo aorta)
-Uterine artery (ant Internal iliac)
-Vaginal artery
-Internal Pudendal artery (ant internal iliac)
-Many anastamoses between arteries to ensure rich vascular supply


Describe the anatomical relationship between the ureter and the uterine vessels
Why is this clinically significant?

-The ureter passes posteriorly to the uterine arteries
-Important in a hysterectomy not to ligate the ureter


Describe the lymphatic drainage of the uterus

-aortic (fundus), external and internal iliac nodes (body), sacral nodes and inguinal nodes (cervix)
(reflects everything it passes during development)


What is the lympatic drainage of the ovary?

-Paraaortic nodes


What glands are within the vestibule of the vagina?

-Greater vestibular glands (bartholin glands)
-Lesser vestibular glands


Name two common clinical problems occuring with greater vestibular glands

-Bartholin gland cyst


What is a cervical fornix?

-Recess of vagina around the cervix


Describe the innervation of the uterus and vagina

-Inferior 1/5 vagina recieves somatic innvervation from pudendal nerve
-Superior 4/5 vagina and uterus receives innervation from uterovaginal plexus


What is the pelvic pain line? What is its clinical significance during child birth?

-Anything touched by the peritoneum is said to be above the pelvic pain line anything inferior is below
-Above pain fibres are carried by lumbar splanchnics and below pain fibres are carried by sacral splanchnics along with pudendal nerve which innervates external genitalia
-Pudendal nerve block = external genitalia only -> birth canal pain still present
-Epidural = will numb everything below pelvic pain line -> uterus above ppl so will still feel contractions
-Spinal block will stop all feeling