The Combining Form Spir/o- Means

question 407

Multiple Choice

The combining form spir/o- means:

• A)breathe.
• B)spine.
• C)muscle.
• D)lung.

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Definitions:

Endochondral

Pertaining to the process by which bone tissue is created from cartilage, a critical path in the formation of the skeletal system of vertebrates.

Intramembranous Ossification

A process by which bone tissue forms directly from mesenchymal tissue without first forming cartilage.

Woven Bone

An immature form of bone that is rapidly produced during growth or healing, characterized by a haphazard arrangement of collagen fibers.

Red Marrow

Soft, pulpy connective tissue filling the cavities of bones; consists of reticular fibers and the development stages of blood cells and platelets; gradually replaced by yellow marrow in long bones and the skull.