Schwann Cell Function & Axon Regeneration Quiz

Myelin Production in the Peripheral Nervous System

• Schwann cells are responsible for producing myelin proteins in the peripheral nervous system (PNS).
• Myelin sheaths formed by Schwann cells insulate axons, facilitating faster signal transmission.

Fragments of Old Myelin After Axon Injury

• After axon injury in the PNS, Schwann cells clear fragments of old myelin through phagocytosis.
• This cleanup is essential for guiding the regeneration of axons and restoring functionality.

Inhibitory Proteins Production by Schwann Cells

• Following axon injury, Schwann cells initially reduce the production of inhibitory proteins.
• The decrease in inhibitory signals promotes an environment conducive to axonal regeneration.

Definition of Objective Data

• Objective data refers to measurable, observable information collected through empirical observation, rather than subjective interpretation.

Signs and Overt Data

• Signs are overt data, which can be quantified and observed by others, such as vital signs and physical examination findings.
• These data types provide tangible evidence of a patient’s health status.

Example of Objective Data

• An example of objective data includes quantitative measurements like blood pressure readings or laboratory test results.