When a neuron in a muscle is fired, or triggered, it sends a message to the brain telling the muscle to contract.
no, lactic acid does
It can cause vascular smooth muscle contraction
The eccentric muscle contraction is most likely to cause discomfort in q5.
No, contraction of the dartos muscle causes wrinkling of the scrotal skin to regulate temperature, but it does not directly cause elevation of the testes. Elevation of the testes is primarily controlled by the cremaster muscle.
The heart muscle is different from smooth and skeletal muscles because it does not require a nerve to cause it to contract. The heart has it's own built in conduction system that cause's the automatic contraction and relaxation that is required for circulation. Smooth and Skeletal muscle whether it uses voluntary or involuntary muscle contraction all have innervation to cause the contraction. Sara, RN
In the myoneural junction.
Asthma causes contraction of the bronchial smooth muscle.
In the myoneural junction.
slow down or will cause bradycardia. calcium is essential in muscle contraction.
A subthreshold stimulus is one that does not generate a strong enough signal to elicit a perceptible contraction in muscle fibers. It is below the threshold required to cause an action potential and result in muscle contraction.
it is known as the threshold stimulus usually seen in tonic contraction
Muscle