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Anatomy 6512 > Anatomy EX2 - Arteries > Flashcards

Anatomy EX2 - Arteries Flashcards

1
Q

Pericardiacophrenic & superior phrenic aa

A

-supply superior surface of diaphragm (via int. thoracic a & thoracic aorta)

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2
Q

Inferior phrenic aa

A
  • supply inferior surface of diaphragm (via abdominal aorta)

- sends off 6-8 Sup. suprarenal aa.

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3
Q

Musculophrenic aa

A
  • supply periphery of diaphragm and upper abdominal mm. (via int. thoracic aa.)
  • Br. of Internal Thoracic (Mammary)
  • Runs along costal cartilage
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4
Q

Superior Epigastric aa.

A
  • Br. of Internal Thoracic (Mammary)
  • Enters posterior rectus sheath lat. to sternum
  • Supplies upper rectus abdominus mm.
  • Anastomoses with Inf. Epigastric
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5
Q

Celiac Trunk

A
  • 1st major br. of Abd aorta
  • Supplies liver, gb, esophagus, stomach, pancreas & spleen
  • 3 main branches
    1) Common hepatic
    2) L. gastric
    3) Splenic aa.
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6
Q

Splenic a.

A
  • Left br. of celiac trunk
  • Runs toward spleen
  • supplies pancreas & spleen
  • Sends short gastric aa. & L gastroepiploic a.
  • supply greater curvature of stomach
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7
Q

L Gastric a.

A
  • Superior br. of celiac trunk
  • Runs L toward lesser curvature of stomach
  • supplies stomach & esophagus (via esophageal brs.)
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8
Q

Common Hepatic a.

A
  • Right br. of celiac trunk
  • Runs toward liver & gallbladder
  • 2 terminal branches:
    1) Proper hepatic a.
    2) Gastroduodenal a.
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9
Q

Proper Hepatic a.

A
  • Superior br. of common hepatic a.
  • Runs toward liver & medial to bile duct
  • Splits into R & L hepatic aa
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10
Q

R. Gastric a.

A
  • usually arises from proper hepatic a.
  • May arise from common hepatic or gastroduodenal aa.
  • Anastomoses with L. gastric a.
  • Supplies lesser curvature of stomach
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11
Q

Cystic a.

A
  • usually arises from R hepatic a.
  • 75% run post. to common hepatic duct
  • 24% run ant. to common hepatic duct
  • 1% are double cystic aa.
  • Supplies gallbladder & cystic duct
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12
Q

Common Hepatic aa. Variations

A
  • variations ~ 40%
  • R hepatic a. may arise from SMA
  • L hepatic a. may arise from L. gastric a.
    -Both R and L hepatic aa. may arise from celiac trunk
    Accessory R & L hepatic aa also common
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13
Q

Gastroduodenal a.

A
  • Inferior br. of common hepatic a.
  • Runs toward junction of stomach & duodenum
  • sends Supr. pancreaticoduodenal aa. to pancreas/duodenum
  • sends R gastroepiploic a to gr. curvature of stomach
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14
Q

Superior & Inferior Pancreaticoduodenal aa.

A
  • Gastroduodenal a. sends off Supr. pancreaticoduodenal aa.
  • SMA gives off Inferior pancreaticoduodenal aa.
  • They anastomose and supply head of pancreas & duodenum

*Splenic a. supplies rest of pancreas with additional branches

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15
Q

Lumbar aa,

A
  • 4 pairs aa
  • brs of Abd aorta
    (sup to bifurcation)

*Note:
Aorta bifurcates at L4
level of umbilicus

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16
Q

Suprarenal aa.

A
  • supply adrenal glands
    1) Sup. suprarenal aa (6-8) from Inferior phrenic a.
    2) Middle suprarenal aa (1+) from Abdominal aa.
    3) Inf. suprarenal aa (1+) from Renal aa.
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17
Q

Renal aa.

A
  • R longer
  • R passes posterior to IVC
  • Each divides at hilum into segmental aa.
  • Enter hilum of each kidney to supply it 

  • lateral branches of abdominal aorta (lateral to SMA) 

  • sends off brs. to adrenal glands via inf. suprarenal aa., and ureters
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18
Q

Ureter aa.

A

– arise from 3-4 sources:

1) renal a.
2) testicular or ovarian a.
3) abdominal aorta
4) internal iliac a. (Pelvic cavity)

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19
Q

Gonadal aa.

A

• lateral branches of abdominal aorta (inf. to renal aa.)
• Ovarian aa (♀)
– crosses over ureters & iliac vessels
– descends to pelvis to supply ovaries
• Testicular aa. (♂)
– crosses over ureters & enters inguinal canal
– descends into scrotum to supply testes

20
Q

Deep Circumflex Iliac aa.

A
  • Br. of External Iliac
  • Runs between IO & TA
    Supplies inferior lateral abdominal mm.
21
Q

Inferior Epigastric aa.

A
  • Br. of External Iliac
  • Enters posterior rectus sheath at arcuate line
  • Supplies lower rectus abdominus mm.
  • anastomoses with Sup. Epigastric
22
Q

Superficial Circumflex Iliac aa.

A
  • br. of femoral a.

- supplies region of inguinal ligament

23
Q

Superficial Epigastric aa.

A
  • br. of femoral a.

- supplies abdomen infr. to umbilicus.

24
Q

Internal iliac aa.

A
  • enter true pelvis & branches
  • 3 posterior & 7 anterior
  • supplies pelvic organs & gluteal region
25
Q

Iliolumbar a.

A
  • between iliac crest & L5

- supplies medial ilium & L5

26
Q

Lateral Sacral a.

A
  • enters ventral sacral foramina

- supplies sacrum & ventral sacral nn.

27
Q

Superior Gluteal a.

A
  • between L5 & S1
  • enters gluteal region superior to piriformis m.
  • supplies gluteal mm. with superior gluteal nn.
  • exits greater sciatic foramen
28
Q

Inferior Gluteal a.

A
  • Between S2 & S3(S1 & S2)
  • inferior to piriformis m.
  • supplies gluteal mm with inferior gluteal nn.

NOTE: both Sup. & Inf. Gluteal aa. exit pelvis via greater sciatic foramen

29
Q

Middle Rectal a.

A
  • supplies rectum

- anastomoses with superior rectal from IMA & inferior rectal from internal pudendal a.

30
Q

Internal pudendal a.

A
  • runs with pudendal n.
  • exits pelvis thru greater sciatic foramen
  • enters gluteal region inferomedial to piriformis
  • crosses over sacrospinous ligament
  • re-enters pelvis thru lesser sciatic foramen
  • supplies UG & anal Δs
31
Q

Vaginal a. OR Inferior Vesical a.

A
  • in females: supplies inferior vagina & adjacent bladder and rectum
  • in males: supplies posterior inferior bladder, ureter, seminal vesicle and prostate
    Note: ureter runs above this artery
32
Q

Obturator a.

A
  • runs thru obturator canal

- supplies medial thigh with obturator n.

33
Q

Umbilical a. & Superior Vesical a.

A
  • runs toward ant. abd. wall
  • sends of 3-4 Superior Vesical aa. to bladder
  • terminates as medial umbilical ligament
34
Q

Superior Mesenteric a.

A
  • 2nd major branch of abdominal aorta
  • ~1 cm inferior of celiac
  • sends 15-18 intestinal
    aa to small intestine
  • supplies up to proximal 2/3 of transverse colon
  • Has 4 main branches:
    1) Inferior pancreaticoduodenal a.
    2) Ileocolic a.
    3) R. colic a.
    4) Middle colic a.
    *Also gives off other intestinal aa.
35
Q

Ileocolic a.

A
  • supplies last part of ileum, cecum, and appendix
36
Q

R. Colic a.

A
  • supplies ascending colon
37
Q

Middle Colic a.

A
  • supplies transverse colon
38
Q

Inferior Mesenteric a.

A
  • 3rd major branch of abdominal aorta
  • ~5 cm superior to aortic bifurcation
  • supplies colon from distal 1/3 of transverse colon
  • Has 3 branches:
    1) L. Colic a.
    2) 4 Sigmoid aa.
    3) Superior rectal a.
39
Q

L. Colic a.

A
  • supplies descending colon
40
Q

Sigmoid aa.

A
  • there are 4 of them
  • branches supply the lower part of the descending colon, the iliac colon, and the sigmoid or pelvic colon; anastomosing above with the L. Colic a.
41
Q

Superior Rectal a.

A
  • the terminal branch of the IMA

- supplies rectum

42
Q

Median sacral a.

A
  • runs down the midline of the sacrum
43
Q

Abdominal aorta

A
  • splits into common iliac aa.
44
Q

Common Iliac aa.

A
  • splits into external & internal iliac aa.
45
Q

External iliac aa.

A
  • exits pelvis as femoral aa.
46
Q

Marginal aa.

A
  • Anastomoses exist between colic branches for collateral circulation
  • These form a consistent vascular arc around colon, via marginal a. of Drummond

Anatomy 6512 (26 decks)

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