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CR4 > Rectum, bladder and female urethra > Flashcards

Rectum, bladder and female urethra Flashcards

(68 cards)

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1
Q

supravesical fossa

A

depression superior to the bladder

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2
Q

rectovesical pouch

A

depression between the rectum and bladder MALES

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3
Q

Uterovesical pouch

A

depression between the bladder and uterus FEMALES

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4
Q

Rectourterine pouch

A

depression between the rectum and uterus FEMALES

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5
Q

What are the inferiormost extents of the perineal cavity

A

Rectovesical pouch (males) and rectourterine pouch (females) - these are the sites where fluid, pus, and blood may collect

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6
Q

at what level do the common illiac arteries bifurcate

A

L5 and S1

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7
Q

what arteries come from the posterior division of internal iliac artery

A

Illiolumbar, Lateral Sacral, Superior gluteal

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8
Q

what artery passes between the lumbosacral trunk (L4/L5) and S1 to exit the pelvis via the greater sciatic foramen

A

superior gluteal

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9
Q

what arteries come from the anterior division of the internal iliac artery

A

Umbilical artery (superior vesical arteries, obliterated part - medial umbilical liagement) Obturator artery, Inferior vesical (MALES), Uterine artery (FEMALES- Vaginal branch and Uterine artery proper) Vaginal artery (FEMALES) Middle rectal, Internal pudendal, and inferior gluteal

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10
Q

the uterine artery passess _____ to the ureter near the lateral edge of the vagina

A

Superior to the ureter

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11
Q

what female structure is a homolog to the inferiro vesicular artery in males

A

vaginal artery

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12
Q

what artery passes between S2 and S3 to exit the pelvis vis the greater sciateic foramen inferior to the piriformis

A

inferior gluteal artery

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13
Q

Middle artery is a branch of

A

anterior division of the internal iliac artery

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14
Q

Superior rectal is a branch of

A

IMA

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15
Q

inferior rectal is a branch of

A

internal pudendal artery (from anterior division of internal iliac artery)

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16
Q

what artery supplies the external genetalia

A

internal pudendal artery

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17
Q

ovarian arteries are branch of what

A

abdominal aorta- give rise to ovarian and tubal branches that anastamose with ovarian and tubal branches of the uterine artery proper (from uterine artery from anterior division of the internal iliac)

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18
Q

Testicular arteries

A

off the abdominal aorta- run in spermatic cord to testes

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19
Q

unpaired artery off the posterior surface of the abominal aorta just superior to the bifurcation

A

median sacral artery

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20
Q

Terminal branc of IMA

A

Superior rectal artery

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21
Q

pelvic venous plexus drains mostly to

A

internal illiac veins

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22
Q

most of the pelvic lymph (except ovarian lymph) is drained to where

A

internal and external iliac lymph node and ultimately throacic duct

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23
Q

Ovarian lymph is drained where

A

directly draned to lateral aortic or lumbar nodes

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24
Q

Pelvic lumbar plexus

A

L1-L4 pass through but do not supply innervation to the true pelvis

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25
Obturator nerve
L2-L4 exists through obturatory canal to supply medial thigh
26
Lumbosacral Plexus
L4-L5 joins the sacral plexus
27
Sacral Plexus
L4-S4 mainly supplies lower limb
28
what nerves make up the sacarl plexus
Sciatic ,Pudendal, Superior Gluteal, and Inferior gluteal
29
Sciatic Nerve
L4-S3 (part of sacral plexis) exits though greater sciatic foramen INFERIOR to piriformis to supply posterior thigh, entire leg, and foot
30
what nerve is the chief sensory nerve of the external genetalia
pudendal nerve (S2-S4)
31
Pudendal nerve
S2-S4 (part of sacral plexus) exits pelvis via greater sciatic foramen inferior to piriformis and wraps around the ischial spine and sacrotuberous ligament and enters the perineum though the lesser sciatic foramen
32
Superiror Gluteal nerve
exits via greater sciatic foramen superior to piriformis to supply gly med, min, and tensor fascia latal
33
Inferior gluteal nerve
exits via greater sciatic foramen inferior to piriformis to supply glut max
34
the rectum begins at what vertebral level
S3
35
rectosigmoid juntion
teniae coli of the sigmoid become complete outer muscle covering so the outer longitudinal layer of the rectum is a complete sheath
36
what part of the rectum has no peritoneal covering
rectal ampulla
37
internal transverse rectal folds (rectal valves of Houston)
2 on the left (upper and lower) and one on the right (middle) - purpose is to help support the fecal matter as it accumulates in the rectum
38
what muscle is imprtant for fecal continence
puborectalis
39
anal canal
continuation of the rectum at the anorectal flexure and terminates as the anus (4 cm long)
40
what muscle keeps the lateral walls in appsosition when not defactaing
levator ani and anal sphincters
41
Anal columns
upper 1/2 of anal canal- separated by anal sinuses
42
anal valves
connect the lower ends of the anal valves to form continuos ring known as the pectinate line
43
what separtes skin and mucosa in the rectum
white line of hilton (interspincteric groove)
44
internal anal sphincter
involuntary- surrounding the upper 2/3 of the anal canal. Contratcion stimulated and maintained by sympathetic fibers (tonically contracted most of the time)
45
External Anal Sphincter
voluntary sphincter that surrounds the ENTIRE length of the anal canal
46
what innervates the external anal sphincter
inferior rectal nerve (from pudendal nerve)
47
External Anal Sphincter consists of
Subcutaneous part (encircles anus) Superficial part Deep part
48
Subcutaneous part of the external anal sphincter
inferior to internal sphincter, encircles the anus and has no boney attachments
49
intersphincteric groove
junction between the subcutaneous part of the external sphincter and the internal sphincter
50
superficial part of the external anal sphincter
overlaps internal sphincter and is spindle shaped - attached to perineal body and coccyx
51
deep part of the external anal sphincter
overlaps the internal sphincter and encircles the anal canal - fused to puborectalis
52
what do the inferior recatal arteries supply
anal canal
53
venous drainage of the rectum and anal canal
follow superior, middle, and inferior rectal veins
54
portocaval venous anastamosis
Superior rectal vein drains to the portal venous system and middle and inferiro drain to the systemic system (caval system)
55
Compare pain with internal vs external hemorrhoids
Internal are not painful (superior rectal veins) External hemorrhoids are quite painful (inferior rectal veins) . Above the pectinate line = visceral pain sensation below pectinate line = somatic sensory pain sensation)
56
lymphatic drainage below the pectinate line
superficial inguinal lymph nodes
57
lymphatic drainage above the pectinate line
internal iliac nodes
58
lymphatic drainage of superior rectum
inferior mesenteric nodes
59
thoracic pain line
at sternal angle
60
pelvic pain line
corresponds to the lower limit of the peritoneum
61
Pain lines and ANS
between the throacic and pelvic pain line is mainly sympatetic- pain follows sympathetics. Above throacic and below Pelvic pain line is parasympathetic
62
Femal ureter spacial relationship
pass inferiror to the uterine artery
63
Male ureter passes _____ to the ductus deferens and ____ to the seminal vesicles
Inferior to ductus deferens and superior to seminal vesicles
64
ureters course ___ to the iliac vessels
anterior - then turn medially to enter the posterior bladder
65
blood supply to the ureters
branches of common and interal iliac arteries
66
location of empty vs distended bladder in the the adult
empty= below pubic symphasis distended= above the pelvic brim in the abdominal cavity
67
what makes up the trigone of the bladder
two openinsg of the ureters and their interconnecting interuretic ridge and internal orifice of the urethra. Mucosa over trigone is smooth
68
internal sphincter of the urethra
involuntary. Formed by muscular fibers of the bladder found at the neck

CR4 (7 decks)

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