Lesson 2B (Part 2) Flashcards Preview

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Flashcards in Lesson 2B (Part 2) Deck (27)
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1
Q

Where is the SMA located? (3)

A
  1. Anterior branch
  2. Inferior to the celiac trunk
  3. L1 (below transpyloric line)
2
Q

Where does the SMA course?

A

Anteroinferiorly

3
Q

Where do the branches of the SMA supply? (3)

A
  1. All of the small intestines
  2. Cecum and ascending colon
  3. Most of the transverse colon
4
Q

Where are the renal arteries located?

A

Few cm inferior to the origin of the SMA

- upper L2

5
Q

Where do the renal arteries course?

A

Horizontally to each kidney

6
Q

Where does the right renal artery run? (2)

A
  1. Posterior to the IVC

2. Anterior to the aorta

7
Q

Where are the gonadal arteries located?

A

Just inferior to the renal vessels and descend along the psoas muscle over the external iliac vessels
- lower L2

8
Q

Where do the gonadal arteries go in males?

A

Through the inguinal ring to enter the spermatic cord on their way to the testis

9
Q

Where do the gonadal arteries go in females?

A

Into the pelvic cavity and continues on the suspensory ligament to supply the ovary

10
Q

Why does the blood start in the abdomen for the gonadal arteries?

A

Because the utero testicles stay in the abdomen and once they are born they descend
- need to be at a certain temperature

11
Q

Where do the 4 paired parietal aortic branches arise?

A

Posterolateral surface of the aorta along the upper L4 vertebrae

12
Q

What do the 4 paired parietal aortic branches supply?

A

The posterolateral abdominal wall

13
Q

What is the unpaired parietal aortic branch?

A

Middle/median sacral artery

14
Q

Where does the median sacral artery arise from?

A

The posterior surface of the aorta, just proximal to the aortic bifurcation
- L4 and L5

15
Q

What does the median sacral artery supply?

A

A portion of the posterior abdominal wall

16
Q

Where does the aorta bifurcate?

A

L4

17
Q

After the aorta bifurcates, what does it turn into?

A

The left and right common iliac arteries

18
Q

At L5-S1, what happens to the common iliac arteries?

A

It divides further into the internal and external iliac arteries

19
Q

What does the internal ilac artery supply? (3)

A

The wall and the viscera of…

  1. Pelvis
  2. Perineum
  3. Gluteal region
20
Q

What is the external iliac artery continuous with?

A

The femoral artery

21
Q

What does the external iliac artery supply?

A

The lower limbs

22
Q

Why is the internal iliac artery smaller than the external artery?

A

Because the smaller has less to supply to (viscera and pelvis) compared to the external (lower limbs)

23
Q

What are the 4 landmark branches of the aorta?

A
  1. Celiac trunk
  2. GDA
  3. SA
  4. SMA
24
Q

What is the celiac trunk a landmark for?

A

Superior to the pancreas

25
Q

What is the GDA a landmark for?

A

Head of the pancreas

26
Q

What is the SA a landmark for?

A

Superior to the pancreas

27
Q

What is the SMA a landmark for?

A

Inferior to the pancreas