Dictionary > Acroataxia


Acroataxia refers to the ataxia affecting the distal portion of the limbs, such as hands, fingers, feet, and toes. That is in contrast to the ataxia involving the proximal portion of the extremities such as the arms, forearms, thighs, and legs. Ataxia, in particular, is the lack of muscular coordination or irregularity of muscular action of voluntary movements. It often involves damage to the cerebellum, which is part of the brain responsible for regulating muscle coordination. The damage may be due to certain medications (e.g. barbiturates), alcohol abuse, cerebral palsy, tumor, brain degeneration, head trauma, or complications of certain infections (e.g. chickenpox). It may also be genetic. For instance, Friedreich’s ataxia is an autosomal recessive disorder wherein the condition progresses from gait ataxia to acroataxia. The affected body parts, e.g. hands and lower extremities, may waste away over time. Since the underlying cause varies, the treatment also varies depending on what led to it.

See also


  1. Ataxia – Symptoms and causes. (2018). Retrieved from Mayo Clinic website: https://www.mayoclinic.org/diseases-conditions/ataxia/symptoms-causes/syc-20355652

© Biology Online. Content provided and moderated by Biology Online Editors

You will also like...

Types and Causes of Brain Damage
Types and Causes of Brain Damage

This tutorial describes the different types and causes of brain damage. Find out how genetics, physical injury, lack of ..

Water Cycle
The Water Cycle

The water cycle (also referred to as the hydrological cycle) is a system of continuous transfer of water from the air, s..

Peppered moth ("Biston betularia") melanic and light form
Examples of Natural Selection

Darwin's Finches are an example of natural selection in action. They are an excellent example of the way species' gene p..

Independent Assortment and Crossing Over
Independent Assortment and Crossing Over

This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..

Cambial cells
Plant Tissues

Plant organs are comprised of tissues working together for a common function. The different types of plant tissues are m..

bryophyte - sporophyte and gametophyte
Meiosis and Alternation of Generations

Plants are characterized by having alternation of generations in their life cycles. This tutorial is a review of plant m..