The Hepatic Portal System

question 9

Multiple Choice

The hepatic portal system

• A)begins and ends with capillary beds.
• B)transports nutrients from the digestive tract to the liver.
• C)allows the liver to detoxify substances entering the body through the digestive tract.
• D)has no pumping mechanism between the capillary beds.
• E)All of these choice are correct.

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Definitions:

Melanin

Group of related molecules responsible for skin, hair, and eye color. Most melanins are brown to black pigments; some are yellowish or reddish.

Addison Disease

A disorder characterized by insufficient production of corticosteroid hormones by the adrenal glands, leading to fatigue, muscle weakness, and changes in skin pigmentation.

Pregnancy

The condition of having a developing embryo or fetus in the body, resulting from the fertilization of an egg by a sperm.

Stratum Basale

The deepest layer of the epidermis, consisting of a single row of cells primarily responsible for generating new skin cells.