The spleen and liver Flashcards Preview

SEM2 ANATOMY > The spleen and liver > Flashcards

Flashcards in The spleen and liver Deck (25)
Loading flashcards...
1

What structure mirrors the anterior border of the spleen?

Stomach

2

What structures mirror the posterior border of the spleen?

Diaphragm
Ribs 9-11
Left lung

3

What structures are found at the medial border of the spleen?

Left kidney
Tail of pancreas

4

What structures are in contact with the superior border of the spleen?

Diaphragm
Costodiaphragmatic recess

5

What structures mirror the inferior border of the spleen?

Left colic flexure

6

In which abdominal quadrant is the spleen located?

Upper left (left hypochondrium)

7

What ribs protect the spleen from trauma?

Ribs 9-11

8

What are the 3 functions of the spleen?

Blood filter (removing old RBCs)
Immunofiltration (site of B and T lymphocytes)
Platelet/WBC storage

9

What are the two ligaments of the spleen? What structures do they connect?

Gastrosplenic ligament:
Splenic hilum --> greater curvature of stomach

Splenorenal ligament:
Splenic hilum --> left kidney

10

What structures are found at the splenic hilum?

Splenic artery
Splenic vein
Lymph vessels
Sympathetic vasomotor fibres

11

What is the innervation of the spleen?

Splanchic nerve via coeliac plexus

12

What is the path of lymph drainage from the spleen?

Pancreaticosplenic nodes --> celiac nodes

13

Outline the path of the splenic artery

Branches from the celiac trunk, across pancreas, splits into 6 central arteries at splenic hilum

14

Outline the path of the splenic vein

Leaves hilum, superior mesenteric, portal vein

15

What is the red pulp of the spleen? What percentage of splenic volume is this?

Sinusoid and vascular sinuses filled with blood

Majority of splenic parenchyma (80%)

16

What is the white pulp of the spleen? What percentage of splenic volume is this?

Aggregations of lymphoid tissue

20%

17

What are the marginal zones of the spleen?

What is their function?

Do these zones have any other names?

Interface between lymphoid (white) and non-lymphoid (red) pulp

High perfusion at an decreased rate- enhances reactions between lymphocytes and antigens

Perilymphoid tissue/follicular tissue

18

What are the long term implications of a splenectomy?

Immunisations and vaccinations
Lifelong Abx prophylaxis

19

What are the four lobes of the liver?

Caudate (top)
Quadrate (bottom)
Left and right

20

What are the four ligaments of the liver?

Hepatoduodenal
Hepatogastric
Left and right triangular (connect to diaphragm)

21

Functionally, the quadrate lobe of the liver is related to which other lobe?

Left lobe

22

Functionally, the caudate lobe of the liver is related to which other lobe?

Right lobe

23

What structures enter and exit the liver at the porta hepatis?

Portal vein
Hepatic artery (branch of celiac trunk)
Common bile duct (exiting)

24

What percentage of blood supply comes from the hepatic artery and portal veins respectively?

25% hepatic artery
75% portal vein (from spleen)

25

What is unique about the hepatic vein?

Drains into IVC but DOESN'T exit the liver at the porta hepatis