During Inspiration

question 208

Multiple Choice

During inspiration

• A) the diaphragm contracts and moves up into the thoracic cavity
• B) the chest cavity expands
• C) the pressure in the thoracic cavity increases
• D) all of the above

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Definitions:

Astrocytes

Star-shaped glial cells in the brain and spinal cord involved in physical support, maintenance of the blood-brain barrier, and nutrient and ion regulation.

Microglia

Specialized type of glial cells in the brain and spinal cord that act as the main form of active immune defense in the central nervous system.

Ependymal Cells

Specialized glial cells that line the ventricles of the brain and the central canal of the spinal cord, involved in the production of cerebrospinal fluid.

Oligodendrocytes

Glial cells in the central nervous system that produce myelin, a substance that forms a sheath around nerve fibers to facilitate electrical impulse conduction.