pelvic blood supply l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
PELVIC BLOOD SUPPLY PowerPoint Presentation
Download Presentation
PELVIC BLOOD SUPPLY

Loading in 2 Seconds...

play fullscreen
1 / 39

PELVIC BLOOD SUPPLY - PowerPoint PPT Presentation


  • 739 Views
  • Uploaded on

PELVIC BLOOD SUPPLY. Iliac Arteries. Common iliac: External iliac: Travels lateral to superior pubic ramus. Branches: Deep circumflex iliac artery. Inferior epigastric artery: Travels deep to inguinal ligament. Becomes femoral artery: Moore, Fig. 3.11.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'PELVIC BLOOD SUPPLY' - andrew


Download Now An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
iliac arteries
Iliac Arteries
  • Common iliac:

External iliac:

Travels lateral to superior pubic ramus.

Branches:

Deep circumflex iliac artery.

Inferior epigastric artery:

Travels deep to inguinal ligament.

Becomes femoral artery:

Moore, Fig. 3.11.

iliac arteries4
Iliac Arteries
  • Common iliac:

Internal iliac:

Travels inferiorly and medially over pelvic brim.

Supplies:

Pelvic organs.

Gluteal muscles.

Perineum.

Two divisions:

Anterior.

Posterior.

internal iliac arteries
Internal Iliac Arteries
  • Anterior division:

Umbilical artery:

Gives off superior vesicle arteries:

Supplies superior aspect of urinary bladder.

Becomes either:

Obliterated umbilical artery.

Medial umbilical artery.

internal iliac arteries6
Internal Iliac Arteries
  • Anterior division:

Obturator artery:

Travels anteriorly and inferiorly along pelvic wall.

Exits pelvic cavity through:

Obturator canal (in obturator foramen).

Supplies:

Pelvic muscles.

Ilium.

Femoral head.

Muscles of medial thigh.

internal iliac arteries7
Internal Iliac Arteries
  • Anterior division:

Inferior vesicle artery (male):

Travels inferiorly and posteriorly to urinary bladder.

Analogous to female uterine artery.

Prostatic branch:

Supplies prostate gland.

Artery to ductus deferens.

internal iliac arteries8
Internal Iliac Arteries
  • Anterior division:

Uterine artery (female):

Travels medially in broad ligament.

Analogous to male inferior vesicle artery.

Supplies uterus and vagina.

internal iliac arteries9
Internal Iliac Arteries
  • Anterior division:

Internal pudendal artery (male):

Exits pelvic cavity through greater sciatic foramen.

Loops around ischial spine.

Enters perineum through lesser sciatic foramen.

Enters pudendal canal.

internal iliac arteries10
Internal Iliac Arteries
  • Anterior division:

Internal pudendal artery (male):

Branches:

Inferior rectal.

Perineal artery:

Posterior scrotal artery.

Artery of bulb of penis.

Deep artery of penis:

Supplies corpora cavernosa of penis.

Dorsal artery of penis.

internal iliac arteries11
Internal Iliac Arteries
  • Anterior division:

Internal pudendal artery (female):

Branches:

Inferior rectal.

Perineal artery:

Posterior labial artery.

Artery of vestibule of vagina.

Deep artery of clitoris.

Dorsal artery of clitoris.

internal iliac arteries12
Internal Iliac Arteries
  • Anterior division:

Inferior gluteal artery:

Exits pelvic cavity through greater sciatic foramen.

Usually passes inferior to piriformis muscle.

Supplies:

Coccygeus muscle.

Three levator ani muscles.

Piriformis and quadratus femoris muscles.

Uppermost posterior thigh muscles.

Gluteus maximus.

Sciatic nerve.

internal iliac arteries13
Internal Iliac Arteries
  • Anterior division:

Middle rectal artery:

Travels inferior to lower rectum.

Supplies lower rectum and seminal vesicles in males.

internal iliac arteries14
Internal Iliac Arteries
  • Posterior division:

Iliolumbar artery:

Travels posterior to sacroiliac joint posterior to common iliac vessels and psoas major muscle.

Supplies;

Psoas major muscle.

Iliacus muscle.

Quadratus lumborum muscle.

Cauda equina (in vertebral canal).

internal iliac arteries15
Internal Iliac Arteries
  • Posterior division:

Lateral sacral artery:

Travels on anteromedial aspect of piriformis muscle.

Sends branches to ventral sacral foramina.

Supplies:

Piriformis muscle.

Sacral canal structures.

Erector spinae muscles.

internal iliac arteries16
Internal Iliac Arteries
  • Posterior division:

Superior gluteal artery:

Exits pelvic cavity through greater sciatic foramen superior to piriformis muscle.

Supplies:

Piriformis muscle.

Gluteus medius muscle.

Gluteus minimus muscle.

Tensor fascia latae muscle.

abdominal aorta
Abdominal Aorta
  • Branches to pelvis:

Testicular (male):

Travels through inguinal canal into scrotum.

Travels inside spermatic cord.

Supplies testis.

abdominal aorta18
Abdominal Aorta
  • Branches to pelvis:

Ovarian (female):

Travels inferiorly over pelvic brim to ovary:

Through suspensory ligament.

abdominal aorta19
Abdominal Aorta
  • Branches to pelvis:

Inferior mesenteric:

Superior rectal artery:

Travels over left common iliac vessels into pelvic cavity.

Supplies superior aspect of rectum.

Anastomoses with middle and inferior rectal arteries.

abdominal aorta20
Abdominal Aorta
  • Branches to pelvis:

Median sacral:

From posterior aspect of termination of aorta.

Travels in median plane over L4-5, sacrum, coccyx.

veins
Veins
  • Most analogous and named for corresponding arteries.
  • Pampiniform plexus:

Inside spermatic cord.

Drains testicular vein.

veins22
Veins
  • Internal rectal venous plexus:

Superior-most anastomosis of the three rectal veins.

  • External rectal venous plexus:

Inferior-most anastomosis of the three rectal veins.

Near anus.

internal hemorrhoids
Internal Hemorrhoids
  • “Piles”
  • Prolapse of mucosa containing internal rectal venous plexus.
  • Pain and impeded blood flow.
external hemorrhoids
External Hemorrhoids
  • Produced by blood clots in external rectal venous plexus.
  • Bulging out of skin and mucosa from external rectal venous plexus.
sacral plexus
Sacral Plexus
  • L4-S4:
  • Superior gluteal nerve (L4-S1):

To gluteus medius and minimus.

  • Inferior gluteal nerve (L5-S2):

To gluteus maximus.

Moore, Fig. 3.10 and Table Figure 3.4

sacral plexus27
Sacral Plexus
  • Muscular branches:

Quadratus femoris (L4-S1).

Obturator internus (L5-S2).

Piriformis (S1-2).

Levator ani and coccygeus (S3-4).

sacral plexus28
Sacral Plexus
  • Posterior femoral cutaneous (S1-S3):

To buttock and uppermost region of posterior thigh.

sacral plexus29
Sacral Plexus
  • Pudendal (S2-4):

To perineum:

Inferior rectal nerve:

Innervates anal canal.

Dorsal nerve of penis.

Perineal nerve:

Posterior scrotal nerve.

sacral plexus30
Sacral Plexus
  • Sciatic nerve (L4-S3):

Passes through greater sciatic foramen.

Tibial nerve (L4-S3).

Common peroneal nerve (L4-S2).

coccygeal plexus
Coccygeal Plexus
  • S4, S5, coccygeal nerve.
  • Anococcygeal nerve.
lumbar plexus
Lumbar Plexus
  • (T12) L1-5.
  • Ilioinguinal nerve:

Lateral to psoas major.

Anterior scrotal nerve (male):

To scrotum.

Labial branch (female):

To labia majora.

lumbar plexus33
Lumbar Plexus
  • Genitofemoral nerve (L1-2):

Anterior to psoas major.

Genital branch:

To scrotum (male).

To labia majora (female).

  • Lumbosacral trunk (L4-5).
sympathetic system
Sympathetic System
  • Lumbar splanchnic nerves:

Sympathetic.

From lumbar plexus to:

Abdominal sympathetic plexus.

Inferior mesenteric ganglion.

Superior hypogastric plexus:

To uterine tubes in female.

sympathetic system35
Sympathetic System
  • Sacral splanchnic nerves:

Sympathetic.

From sacral plexus.

Feed into sacral sympathetic trunk and then into inferior hypogastric plexus.

sympathetic system36
Sympathetic System
  • Sacral sympathetic trunk:

Paravertebral ganglia.

Ganglion impar:

Coccygeal ganglion.

Superior hypogastric:

Sympathetic.

From lumbar and sacral splanchnic nerves.

Feed into inferior hypogastric plexus.

sympathetic system37
Sympathetic System
  • Sacral sympathetic trunk:

Paravertebral ganglia.

Inferior hypogastric plexus:

Mixed parasympathetic.

In males innervates urethra, ductus deferens, prostate gland, and ejaculatory ducts.

In females, innervates urethra and produces uterovaginal plexus.

Produces vesicle plexus (urinary bladder).

Supplies rectum.

Uterovaginal plexus (uterus, vagina, ovaries.

parasympathetic system
Parasympathetic System
  • Pelvic splanchnic nerves

Parasympathetic.

S2-4.

Feed into inferior hypogastric plexus.

parasympathetic system39
Parasympathetic System
  • Inferior hypogastric plexus:

In females:

Innervates:

Urethra.

Rectum.

Produces:

Uterovaginal plexus (uterus, vagina, ovaries).