Dictionary > Fixator muscle

Fixator muscle

Definition
noun, plural: fixator muscles
(anatomy) A muscle that serves as a stabilizer of one part of the body during movement of another part
Supplement
Muscles may be classified according to their structure, anatomical position, or action. A very well-known classification is one that is based on muscle structure or morphology. Muscles may be smooth, cardiac, or skeletal. Another classification is based on the action of a set of muscles. Muscles, when working together may be agonists, antagonists, or fixator muscle. Agonist muscles produce movements through their own contraction. They are also called the prime movers. They are responsible for generating certain movement. Antagonist muscles oppose a particular movement. They control or slow down muscle motion. An antagonist muscle opposes the action of the agonist muscle, thus, helps in regulating movements. A fixator muscle is one that serves as a stabilizer of one part of the body during movement of another part. It allows the agonist muscle to work effectively by stabilizing the origin of the agonist muscle so that the latter can pull against the bone without it moving thereby achieve an effective contraction.1
See also:

Reference(s):

1 Carnell, D. (2002). AS PE for OCR. Oxford England: Heinemann Educational. p20.


You will also like...

Fossil trilobite imprint in the sediment
Insects

There are more species of insects than any other species combined. This surely illustrates that insects have the selecti..

Neural Control Mechanisms
Neural Control Mechanisms

Neurons generate electric signals that they pass along to the other neurons or target tissues. In this tutorial, you wil..

Genetic Mutations
Chromosome Mutations – II

This tutorial is a continuation of the first lesson on chromosomal mutation. Here, find out the chromosomal aberrations ..

Homeostasis by water regulation
Homeostasis of Organism Water Regulation

Osmoregulation is the regulation of water concentrations in the bloodstream, effectively controlling the amount of water..

complete-dominance
Dominance

This tutorial presents Gregor Mendel's law of dominance. Learn more about this form of inheritance and how it can be pre..

Ecological Research Measuring & Analysis
Ecological Research: Measuring & Analysis

This lesson is about the methods used for ecological research, such as quadrat and transect sampling, canopy fogging, an..

Related Articles...

No related articles found

See all Related Topics