Match Each Organ System with Its Description

question 41

Multiple Choice

Match each organ system with its description.
-muscular system

• A)exchanges gases with the environment
• B)coordinates body activities through the conduction of electrical impulses
• C)helps regulate internal water balance and pH
• D)provides leverage for body movements
• E)moves body parts
• F)converts ingested matter into molecules and ions that can be absorbed into the body
• G)covers external body surfaces and protects against injury and infection
• H)returns excess fluid to the body and protects it against pathogens
• I)passes on genes to the next generation
• J)coordinates body activities though secretion of hormones
• K)distributes water and nutrients throughout the body

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Definitions:

Purkinje Fibers

Specialized conducting fibers located within the heart's ventricular walls that facilitate electrical impulses for heart contractions.

AV Node

The atrioventricular node, a part of the heart's electrical control system that acts as a gatekeeper for electrical impulses between the atria and ventricles.

Parasympathetic Nerve

Nerves that are part of the autonomic nervous system, responsible for conserving energy and slowing down bodily functions.

Sympathetic Nerve

Part of the autonomic nervous system that prepares the body for stress-related activities, often described as the "fight or flight" response.