Unlike the brain and spinal cord, peripheral nerve cells, whose long extensions reach the skin and internal organs, are ...

The evaluation of ptosis does not require a peripheral test. A central test, which documents constriction to within 15°, will document functional involvement due to the lid droop.

Peripheral cyanosis is when someone’s hands, fingertips, or feet turn blue due to a lack of oxygen-rich blood. Some causes include Raynaud’s disease, cardiovascular problems, and hypothermia ...

It can be caused by two main types: peripheral and central. Peripheral vertigo is the more common type and is usually caused by problems in the inner ear, such as BPPV, vestibular neuronitis, or ...

Medically reviewed by Andrew Greenberg, MD Peripheral vision is what you see beyond your direct line of sight. It helps provide a complete sense of your surroundings without moving your head. Jump to ...

Key concepts The human eye Peripheral vision Central vision. Introduction Do you only think of your peripheral (side) vision—peripherally? This side vision is actually useful for many daily ...

Glial cells can cross from the central to the peripheral nervous system. ScienceDaily. Retrieved June 3, 2025 from www.sciencedaily.com / releases / 2009 / 12 / 091201182616.htm.

Chronic Pain I Feel Your Central—or Maybe Peripheral—Pain Like life, many of just don’t know what to make of fibromyalgia.

Central or Peripheral Catheters for Initial Venous Access of ICU Patients: A Randomized Controlled Trial . Ricard JD, Salomon L, Boyer A, et al Crit Care Med. 2013;41:2108-2815. Summary.

Peripheral vision loss is when a person has issues with side vision. This means they can see clearly in the center, but have difficulty seeing to the side. Learn more here.

Central vestibular disorders, including vestibular migraine, account for around 25% of cases of vertigo and dizziness. In this Review, the authors present the key signs and symptoms of central ...

An estimated 20 million people in the U.S. suffer from peripheral neuropathy. There are likely many more who are never diagnosed. Peripheral neuropathy is a catch-all term for damage that occurs ...