The Endocrine System

question 48

Multiple Choice

The endocrine system

• A) releases neurotransmitters into ducts.
• B) secretes chemicals that reach their targets through the bloodstream.
• C) communicates via frequency-modulated signals.
• D) contains organs called exocrine glands.
• E) is isolated from the nervous system.

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Definitions:

Edema

An excessive buildup of fluid in body tissue.

Vessels

Structures such as veins, arteries, and ducts that carry fluids like blood or lymph through the body.

Chronic Fatigue Syndrome

A complex disorder characterized by extreme fatigue that cannot be explained by any underlying medical condition.

Tender Lymph Nodes

Lymph nodes that are swollen and painful, often indicating an infection or inflammation in the body.