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Anatomy 2 > Pelvis > Flashcards

Pelvis Flashcards

1
Q

Pelvis pouches

A

Rectovesical pouch- male
Rectouterine pouch
Vesicouterine pouch

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2
Q

True pelvis

A 
Pelvic brim or pelvis inlet
Linea terminalis
-actuate line
-pecten pubis
-pubic crest
Margin of ala
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3
Q

Sexual dimorphism of the pelvis

A

Males are heart shaped with a larger sacram

Females are oval shaped to allow for child birth

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4
Q

Ligaments of the pelvis

A 
Pubic symphysis
Anterior sacroiliac lig
-interosseous lig in between sacroiliacs
Post sacroiliac lig
Sacrotuberous lig
Sacrospinous lig
Obturator membrane
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5
Q

Pelvic muscles

A

Piriformis
-passes thru greater sciatic foramen, S1 S2
Obturator internus
-passes thru lesser sciatic foramen, L5 S1

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6
Q

Pelvic floor muscles

A 
Coccygeus
Levitator Ani
-iliococcygeus
-pubococcygeus
-puborectalis
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7
Q

Male Urogenital Diaphragm

A

Deep transverse perineal muscle

External urethral sphincter

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8
Q

Female urogenital triangle

A

Deep transverse perineal muscle
External urethral sphincter
Sphincter urethrovaginalis
Compressor urethrae

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9
Q

Ureters

A

Females cross the uterine arteries

Males cross the vas deferens

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10
Q

Male urethra parts

A

Preprostatic part
Prostatic part- location of ejactulatory ducts
Membranous part
Spongy part

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11
Q

Rectal muscles

A 
Internal anal sphincter- autonomic 
External anal sphincter- somatic
-deep
-superficial
-subcutaneous 
Puborectalus- somatic
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12
Q

Vaginal fornix

A

A circular gutter that surrounds the cervix

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13
Q

Uterine ligaments

A 
Suspensory ligament
-cover ovarian vessels
Broad ligament
-covers uterus and adnexa 
Ovarian ligament
-anchors ovary to uterus comes from gubernactulum 
Round ligament
-ovarian ligament continues thru Inguinal canal to labia majors
Mesovarium 
-posterior extension of broad ligament
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14
Q

Sympathetic Nerve postganglionic cell bodies

A
  1. Sympathetic trunk= paravertebral
    - ascend or descend then synapse
  2. Prevertebral ganglia= collateral ganglia
    - pass through without synapsing go to splanchnic
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15
Q

Prevertebral ganglia

A
  1. Celiac
  2. Superior mesenteric
  3. Aorticorenal
  4. Inferior mesenteric
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16
Q

Splanchnic nerves sympathetic

A 
Greater splanchnic 
Lesser splanchnic
Least splanchnic 
Lumbar splanchnic 
Sacral splanchnic
17
Q

Parasympathetic nerve transition

A

Vagus nerve goes to transverse 2/3 of the large intestine

Sacral parasympathetic via pelvic splanchnic
Goes to rest of large intestine

18
Q

Ganglion impar

A

End of the sympathetic trunk

19
Q

Hypogastric plexus

A

Contains a mix of parasympathetic and sympathetic nerves

Sympathetic come from a sacral splanchnic nerve from the sympathetic chain

Parasympathetic come from a ventral root from S2-S4 via the pelvic splanchnic

20
Q

Enteric NS

A

Meissners plexus- submucosa nerve plexus

Auerbach plexus- myenteric plexus
Between the inner circular and outer longitudinal muscle layers

21
Q

Pelvic vasculature

A 
Abdominal aorta
Common iliac
External iliac
-exits the pelvis as femoral artery
Internal iliac
-enter true pelvis
-3 posterior and 7 anterior arteries
22
Q

Median sacral artery

A

Runs on the midline of the sacrum

Comes off the abdominal aorta at the common iliac split

23
Q

Iliolumbar artery

A

Off posterior trunk
Between iliac crest and L5
Supplies medial ilium and L5

24
Q

Lateral sacral artery

A

Off posterior trunk
Enters ventral sacral foramina
Supplies sacrum and ventral sacral nerves

25
Q

Superior gluteal artery

A

Off posterior trunk
Between L5 and S1
Enters gluteal region superior to piriformis
Exits greater sciatic foramen
Supplies gluteal muscle with superior gluteal nerve

26
Q

Inferior gluteal artery

A

Off anterior trunk
Between S2 and S3
Inferior to piriformis
Supplies gluteal muscle with inferior gluteal nerve

Exits via the greater sciatic foramen

27
Q

Internal pudendal artery

A

Off anterior trunk
With pudenal nerve
Exits pelvis thru greater sciatic foramen
Enter pelvis through lesser sciatic foramen
Supplies the urogential and anal triangles

28
Q

Umbilical artery

Superior vesicular artery

A

Off anterior trunk
Runs towards anterior abdominal wall
Sends 3-4 arteries to bladder
Terminates as medial umbilical ligament

29
Q

Obturator artery

A

Off the anterior trunk
Supplies median thigh
Goes through obturator canal with the nerve

30
Q

Corona Mortis

A

Crown of death
Anastomoses with inferior epigastric to obturator
Damage opens the internal and external iliac
Death in minutes

31
Q

Uterine artery

A

In females off the anterior trunk
Anastomoses with ovarian artery from aorta
Supplies uterus and superior vagina
Ureter runs under these arteries

32
Q

Vaginal artery or inferior vesical artery

A

Off anterior trunk
Females: Supplies vagina inferior bladder rectum
Males: inferior bladder, ureter, prostate, seminal vesicles
Ureter runs above this artery

33
Q

Middle rectal

A

Off anterior trunk
Supplies rectum
Anastomoses with superior rectal and inferior rectal

34
Q

Sacral plexus

L4-S4

A 
L4-L5: forms Lumbarsacral trunk crosses over sacral ala
S1: emerges above piriformis
S2-3: emerges thru piriformis 
S2-4: contribute to pudendal nerve
L4-S3: sciatic and gluteal nerve

Anatomy 2 (10 decks)

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