COMBO UROGENITAL Flashcards

1
Q

Broad ligaments of the uterus?

A

mesosalpynx mesoovarium mesometrium—>with parametric

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2
Q

derivatives of intermediate mesoderm?

A

intermediate mesoderm –>longitudinal ridge appears along dorsum of embryo=urogential ridge –>cells form urogenital ridge differentiate to form the = nephrogenic cord

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3
Q

Ductus derfferens: blood supply

A

umbilical A–>artery of ductus definers

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4
Q

Ductus derfferens: innervation

A

inferior hypogastic nerve plexus

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5
Q

Ductus derfferens: lymph drainage

A

lumbar lymph nodes

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6
Q

Spermatic cord: pathway

A

Starts: deep inguinal ring, Lateral to Inferior epigastric vessel Ends: superficial inguinal ring and joins posterior surface of testes

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7
Q

Ductus defferens : blood drainage

A

Pampiniform plexus Prostatic venous plexus Vesicles venous plexus

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8
Q

Seminal vesicle: location

A

Paired glands on the posterior surface of the bladder -> joins with Ampulla of ductus defferens to form the ejaculating duct which pierces the seminal collicle of Prostatic part of male urethra Seminal vesicle: role 70% of semen production -> lumen contains a high number of mucosa folds of pseudo stratified columnar epithelial with think tunica musculares ( 2 layers)

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9
Q

Male urinary bladder:

A

Medio lateral components of inferoposterior surface Ampulla of ductus defferens Seminal vesicle and it’s ejaculatory duct

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10
Q

Prostate : location

A

-> surrounded entirely by visceral layer of peritoneal fascia = Prostatic sheath * continuous with puboprostatic ligament (ant) and rectovesical septum ( post) - walnut shaped; largest accessory gland of male reproductive system - produces 30% of semen Found around neck of urinary bladder along Prostatic part of male urethra

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11
Q

Prostate: parts

A

Base Apex Lateral Lobes separated by isthmus Isthmus = composure of proststr/ anterior lobe of prostate Medial lobe

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12
Q

Prostate: surfaces

A

Anterior: faces public symphysis Posterior: faces rectum Inferolatral: faces levators ani Prostate: characteristics Lobular organ - presence of Transverse muscle fiber -> forms the rhabdosphincter - opening of Prostatic ducts around Prostatic sinus which surrounds the seminal collicle

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13
Q

Prostate : contents of medial lobe

A

Prostatic utricle Ejaculatory duct

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14
Q

Prostate: formation of isthmus of prostate

A

Continuation of fibers of internal urethral Sphincter

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15
Q

Prostate: blood supply

A

Internal Iliac artery - Inferior vesical a - internal pudendal - middle rectal

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16
Q

External female genitalia : attachments of clitoris

A

External female genitalia : attachments of clitoris

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17
Q

External female genitalia : blood drainage

A

Internal pudendal being External pudendal being Deep posterior vein of clitoris

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18
Q

External female genitalia : blood supply

A

Internal pudendal artery terminal branches

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19
Q

External female genitalia : clitoris

A

Anterior to urethral orifice
- formed the the crura of clitoris which meet mediocranially and fuse to form the body and glans of clitoris
* develops from primordial phallus
-> sensory erectile organ

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20
Q

External female genitalia : connections of labia majora

A

Anteriorly: anterior labial commisure Posteriorly: posterior labial commisure

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21
Q

External female genitalia : innervation

A

Pudendal nerve Ilioinguinal nerve Genitofemoral nerve

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22
Q

External female genitalia : labia minora

A

Bilateral lips that cover the vaginal vestibule
- Anteriorly they bifurcate and continue around the clitoris to form the: prepuce of clitoris & frenulum of clitoris
- Posteriorly they fuse to form: frenulum of labia minora
——————
Thin cutaneous folds that do not contain fat, only large sebaceous glands

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23
Q

External female genitalia : layers of labia majora

A

External pigmented skin with hair follicles Internally non keratinised epithelium with large sebaceous gkands

24
Q

External female genitalia: Mons pubis + Labia majora

A

Mons pubis
-fatty protection padoverthe pubic symphysis forprotection of the female during sexual intercourse Labiamajora
-continuation oftheMons pubis bilaterallythatcovers thebulbödvestibuleandprotects thevaginal vestibule
* bothdevelopfromlabioscrotal swellings of urogenital sinus

25
External female genitalia: organs
Monspubis Labia majora Clit o ris Labia minora Urethra Vaginalorifice Vaginalvestibule Greater vestibular gland
26
External female genitalia : vaginal vestibule
Contains the: - clitoris with frenulum and prepuce - External urethral orifice with paraurethral glands - vaginal orifice with hymen car uncle - greater vestibular gkands
27
External genitalia: derivative genital tubercle
Primordial phallus
28
External genitalia: derivative of cloacal membrane
Urogenital membrane
29
External genitalia: derivative of urogenital folds
urethral folds
30
xternal genitalia: female genitalia -\> labioscrotal folds
## Footnote Anterior fusion = -\> anteriorcommissure of labia majora -\> mons pubis Middle = no fusion -\> forms the labia majora Posteriorfusion = -\> posteriorlabial commisure
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External genitalia: female genitalia -\> primordial phallus
Primordial phallus will develop into the clitoris
32
External genitalia: female genitalia -\> urethral folds
\* urethral folds do not fuse -\> urogenital sinus will give rise to future vagina and hymen ONLY POSTERIOR PART FUSES = frenulum of labia minora -\> unfused urethral folds = labia minora
33
External genitalia: formation of male genitalia
Induced by testosterone from interstitial leydig cells of fetal testes
34
External genitalia: in differential development
WEEK 9 Mesodermal thickening of the cloacal membrane forms 3ectodermal bulges \*\*\* Fgf8 is expressedby cloacal ectodermwhichinitiation external genitalial differentiation -\> gonadal tubercle (superiortothe cloacal membrane) -\> urogenital folds (whichsurroundthe cloacal membrane) -\> labioscrotal folds (whichsurroundthe urogenital folds)
35
External genitalia: male genitalia -\> labioscrotal folds
Labioscortal folds grow towards each other and form: SCROTUM; site of fusion = scrotal raphe \* scrotums are separated by a septa
36
External genitalia: male genitalia -\> primordial phallus
Primordial phallus elongates and gives rise to: penis corpus cavernosum corpus spongiosum glans of penis \*\*\* ectodermal covering of the primordial phallus gives rise to prepuce and skin of penis
37
External genitalia: male genitalia -\> urethral folds
Urethral folds will fuse and give rise to: spongy male urethra \* Ectoderm at the site of fusion of urethral folds gives rise to: penile raphe
38
Female urethra: blood supply
Internal pudendal artery - uterine artery - inferior vesical artery
39
Female urethra: development
endoderm of cranial end of urogenital sinus
40
Female urethra: drainage
pudendal veins
41
Female urethra: end
External urethral orifice in vaginal vestibule -\> surrounded by external urethral sphincter ( deep perineal muscle) \* skeletal muscle
42
Female urethra: fixations
Urethropelvic ligament -\> endopelvic fascia -\> periurethral fascia Suspensatory ligament of clitoris
43
Female urethra: innervation
pudendal nerves
44
Female urethra: layers
Epithelium: transitional with highly vascularised lamina proprietor Tunica musculares: - inner longitudinal - outer circular
45
Female urethra: length
3-5cm
46
Female urethra: start
internal urethral orifice
47
Femoral canal
Smallest compartment of femoral sheath -\> conical shapes canal Found in the lymphatic Laguna with Rosen-muller lymph nodes \* only forms a femoral canal during true hernia
48
Femoral canal borders:
## Footnote superiorly: inguinal ligament and fascia lata Medially: accurate ligament Laterally: femoral vein Inferiorly: psoas fascia Posteriorly: pectinate ligament
49
Femoral canal : characteristics
Openings are lined by cribriform fascia -\> great saphienous vein pierces the canal and joins femoral vein thru saphenous hiatus
50
Femoral canal : entrance
Femoral ring
51
Femoral canal: exit
saphenous haitus
52
Genital ducts: development of mesopnephros in males
Cranio-caudally: 1. appendix of epididymis 2. epidydymis - \>some of the mesonephric tubules = efferent ductules 3. ductus defferent 4. . seminal vesicle
53
Genital ducts: development of paramesonephros in females
Lack of MIF allows differentiation of paramesonephros Cranially = oviducts Caudally = paramesonephric fusion to form: uterovaginal primordium 1. uterovaginal primordium comes into contact with urogenital sinus and forms a bulge on its posterior wall = mullerian tubercle Uterovaginal primordium = uterus cervix superior 1/3 of the vagina ---- Fusion of the two paramesonephros result in formation of peritoneal folds 1. Broad ligament of uterus: a. mesosalpynx b. mesovarium c. mesometrium -\> development within = parametrium 2. Uterovesical pouch 3. Uterorectal pouch of Douglas --------------------------------------------- Degeneration of mesonephros, cranio-caudally = - appendix vesiculosa - epoophoron (tubules) - paroophoron (tubules) - duct of garment (mesonephric duct)
54
Genital ducts: indifferential genital ducts
``` Paramesonephric duct (=mullerian duct): longitudinal epithelial invagination of antero-lateral surface of urogenital ridge -\> crosses the mesonephric duct and develops caudo-medially where it will fuse (uterovaginal primordium) and form a bulge within the urogenital sinus = mullerian tubercle ``` Mesonephros (=wolffian duct): joins the urogenital sinus on either side of the mullerian tubercle
55
Genital ducts: male development
Male genital ducts develop from the mesonephric ducts - \> induction from testosterone of leydig cells by metal testes - \> MIF of sertoli cells induce degeneration of paramesonephric duct ---\> rudiment = 1. appendix of testes 2. Prostatic utricle - male vagina
56
Glands: development of bulbourethral gland
Develops as bilateral pea-sized outgrowths of penile part of spongy urethra
57