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What occurs when a muscle contracts spasmodically and involuntary?
Wiki User
∙ 7y ago
The a voluntary muscle contracts involuntarily, you will see a little movement through your skin. These movements are often called Tics, Twitches, and Spasms.
If the involuntary contractions are widespread and very energetic, they may be called, "Seizures".
Wiki User
∙ 9y ago
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What type of movement occurs when the hamstring muscle contracts?
Flexion
What occurs when the trachealis muscle contracts and in what activities might this action be very helpful?
Babies happen
What happens to the muscle when experiencing a cramp?
When a muscle cramp occurs, the muscle contracts forcibly and involuntarily and doesn't relax for the time the cramp lasts. The cramp can last from few seconds up to few minutes.
What triggers muscle contraction?
Muscle fibers generates throught the action of actin and myosin. Contraction of Voluntary muscles occurs as a result of conscious effort originating in the brain. The brain sends signals, in the form of action potentials,through the nervous system to the motor neuron that innervates the muscle fiber. Involuntary muscles like the heart or smooth muscles in the gut contracts as a result of unconscious brain activity stimuli endogenous to the muscle itself.
What is the involuntary muscle contractions in the digestive systems that move food through the alimentary canal?
yes it is known as peristalisis. it occurs throughout the tract due to rythemic contractions and ralaxations
What are the causes of spasm?
A spasm is described as a muscle which quickly contracts involuntarily and suddenly. This can be painful. According to the part of the body where the spasm occurs, the cause can stem from various factors. However, in general a spasm will occur if a muscle is overused, therefore running out of energy.
What is perstalsis?
Food is pushed down the oesophagus by a series of contractions. The part of the oesophagus just above the ball of food contracts and pushes it down. then it relaxes and the next part of the oesophagus contracts. this wavelike movement, controlled by muscles, is called peristalsis. It occurs all the way down the alimentary canal.
What are the main causes of spasms?
A spasm is described as a muscle which quickly contracts involuntarily and suddenly. This can be painful. According to the part of the body where the spasm occurs, the cause can stem from various factors. However, in general a spasm will occur if a muscle is overused, therefore running out of energy.
Is the corneal reflex a somatic reflex or an autonomic reflex?
This particular reflex is autonomic as the affected muscle, constrictor pupillae muscle, is a smooth muscle and not under conscious control. Typically if you can consciously contract the muscle, any reflex associated with that muscle is somatic in nature.
What joint action occurs when the biceps muscles contract concentrically?
The bicep muscle relaxes. It is vice-versa when the bicep muscle contracts.
What movement occurs when the subscapularis contracts concentrically?
Internal rotation of the shoulder
Which word symbolizes the expansion that occurs when the left ventricle contracts?
dilation
