The End of a Skeletal Muscle That Is Attached to a Movable

question 66

Multiple Choice

The end of a skeletal muscle that is attached to a movable bone is called the:

• A)flexor.
• B)extensor.
• C)origin.
• D)insertion.

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Definitions:

Fluid-Filled Coelom

A body cavity entirely lined by tissue derived from mesoderm, filled with fluid that allows internal organs to move freely.

Segmented Body

A body divided into repeated sections or segments, characteristic of certain animals like worms and arthropods.

Mesoderm

The middle layer of an embryo in early development, which gives rise to muscles, bones, and the circulatory system among other structures.

Ectoderm

The outermost layer of cells or tissue of an embryo, giving rise to the outer skin layer, nervous system, and various sensory organs.