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...

Neurology of Illusions
Neurology of Illusions

Illusions are the perceptions and sensory data obtained from situations in which human error prevents us from seeing the..

Hormone Production
Hormone Production

Hormones are chemical messengers produced by specialized glands and they were produced by switching on the genes designe..

Developmental Biology
Developmental Biology

Developmental biology is a biological science that is primarily concerned with how a living thing grows and attains matu..

Carbohydrates, fats and proteins - dietary sources
A Balanced Diet – Carbohydrates and Fat

Apart from vitamins, the human body also requires high energy sources such as carbohydrates and fats. If you want an ove..

Sensory systems
Sensory Systems

A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal ..

Chemical effects on plant growth and development
Effect of Chemicals on Growth & Development in Organisms

Plants and animals need elements, such as nitrogen, phosphorus, potassium, and magnesium for proper growth and developme..