The hepatic portal system Obypasses the liver. is made up of the hepatic veins and capillary beds. carries blood from the digestive organs and spleen directly to the liver
The hepatic portal system Obypasses the liver. is made up of the hepatic veins and capillary beds. carries blood from the digestive organs and spleen directly to the liver
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Please help me answer questions 19 and 39
Transcribed Image Text:The hepatic portal system
Question 39:
- Bypasses the liver.
- Is made up of the hepatic veins and capillary beds.
- Carries blood from the digestive organs and spleen directly to the liver.
Transcribed Image Text:**Question 19**
In the graphs below, the light gray lines indicate a "normal" heart rate. In which graph does the colored line indicate a SLOWER heart rate as compared to the normal heart rate?
- Graph (a): The graph illustrates the membrane potential (mV) over time (seconds). The light gray line represents the normal heart rate, while the colored line (red) depicts another rate. The red line has peaks that occur more frequently within the same time frame, indicating a faster heart rate compared to the normal.
- Graph (b): This graph also shows membrane potential (mV) over time (seconds). Similarly, the light gray line marks the normal heart rate, and the colored line (blue) shows another rate. The blue line's peaks occur less frequently, indicating a slower heart rate than the normal.
### Options:
- (A) The colored line in graph (a) indicates a slower heart rate.
- (B) The colored line in graph (b) indicates a slower heart rate.
Only graph (b) shows a slower heart rate as compared to the normal rate.
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Introduction
A venous system known as a portal system has its beginning and conclusion in capillaries. Before being delivered to the heart, it purifies nutrient-rich blood in the liver. An essential component of the circulatory system is the hepatic portal system. However, the term "portal venous system" is also used to describe various vein systems in the body.
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