Muscle tone

Definition

Muscle tone is the continuous and passive partial contraction of the muscles, or the muscle's resistance to passive stretch during resting state. It helps maintain posture and ensures that muscles are ready for action.

Related terms

Motor Unit:

A motor unit consists of one motor neuron and all the muscle fibers it innervates, working together to facilitate muscle contraction.

Neuromuscular Junction:

The neuromuscular junction is a chemical synapse formed by the contact between a motor neuron and a muscle fiber, allowing for the transmission of signals that initiate muscle contraction.

Action Potential:

An action potential is a rapid rise and subsequent fall in voltage or electrical charge across a cellular membrane, primarily associated with nerve and muscle cells, triggering activities like muscle contractions