Muscles That Move a Limb Away from the Midline Are

question 1

Multiple Choice

Muscles that move a limb away from the midline are called ____.​

• A) ​extensors
• B) ​abductors
• C) ​flexors
• D) ​adductors

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Definitions:

Gastrovascular System

A simple digestive system that has a single opening through which food is ingested and waste material is excreted, found in certain invertebrates like cnidarians and flatworms.

Flatworm

Bilaterally symmetrical invertebrate with organs but no body cavity; for example, a planarian or tapeworm.

Simple Diffusion

The movement of molecules from an area of higher concentration to an area of lower concentration without the need for energy or a carrier.

Digestive System

The series of organs and glands responsible for the breakdown and absorption of food to extract necessary nutrients.