A Developmental Stage Comprised of a Hollow Ball of Cells

question 49

Multiple Choice

A developmental stage comprised of a hollow ball of cells is the

• A)blastula.
• B)blastocoel.
• C)gastrula.
• D)neurula.

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Definitions:

Axial Skeleton

The central part of the skeleton, including the skull, spine, ribs, and sternum, that supports and protects the organs of the head, neck, and trunk.

Thoracic Cage

Also known as the rib cage, it encloses and protects the organs of the thorax, including the heart and lungs, while providing support for the shoulder girdle.

Vertebral Column

The backbone or spine, consisting of a series of vertebrae that protect the spinal cord and provide structural support.

Skull

The bony structure forming the head, supporting the structures of the face and protecting the brain.