Activity 5: Hepatic Portal Circulation and Tracing the Hepatic Portal Circulation

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1

Blood vessels of the hepatic portal circulation drain what 3 body parts?

1. Digestive viscera

2. Spleen

3. Pancreas

2

Blood from the digestive viscera, spleen, and pancreas are drained to what organ?

The liver

3

Which vein drains the digestive viscera, spleen, and pancreas to the liver for processing?

Hepatic portal vein

4

The hepatic portal vein is formed by what 2 veins?

1. Splenic vein

2. Superior mesenteric vein

5

If a meal has been recently eaten, the hepatic portal blood will be rich in what?

Nutrient-rich

6

The liver is the key organ in maintaining what 3 concentrations in the blood?

1. Sugar concentration

2. Fatty acid concentration

3. Amino acid concentration

7

1. As blood travels through the liver sinusoids, what happens to some of the nutrients?

2. At the same time (as the aforementioned), what 2 groups of cells in the liver are actively treating the blood?

1. Some are stored or processed for release to the general circulation

2. Hepatocytes and macrophages

8

What is the role of liver hepatocytes?

Detoxify alcohol and other harmful chemicals in the blood

9

What is the role of liver macrophages?

Phagocytize bacteria and other debris from the passing blood

10

What veins drain the liver?

Hepatic veins

11

The hepatic veins enter which large vein?

Inferior vena cava

12

The splenic vein drains what 3 body parts?

1. Spleen

2. Parts of the pancreas

3. Stomach

13

Which 2 veins unite to form the hepatic portal vein?

1. Splenic vein

2. Superior mesenteric vein

14

The superior mesenteric vein drains what 3 organs?

1. Small intestine

2. Part of the large intestine

3. Stomach

15

The inferior mesenteric vein drains what portion of what 2 organs?

Drains the distal portion of the large intestine and rectum

16

The inferior mesenteric vein empties into which vein?

Splenic vein

17
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Identify the blanks.

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