0
What else can I help you with?
What is a rapid repetitive series of threshold stimuli leading to a single fused sustained contraction?
Sumation of contraction
What EPSPs will summate to a sustained value above threshold?
Temporal summation occurs when EPSPs arrive at the postsynaptic neuron in quick succession, allowing for the buildup of membrane potential to reach threshold. This sustained value above threshold is reached when multiple EPSPs are received close together in time, allowing for their individual effects to summate and trigger an action potential.
What is the minimal level of stimulus to cause a muscle contraction?
it is known as the threshold stimulus usually seen in tonic contraction
The minimum stimulus needed to cause a contraction is called the?
The minimum stimulus needed to cause a contraction is called the threshold stimulus. This is the minimal level of stimulation required to activate muscle fibers and initiate a contraction response.
What are five phases of temporal summation?
the four phases of temporal summation are : fatigue, incomplete tetanus, treppe & complete tentanus.
What is the minimal stimulus needed to elicit a muscle contraction is called?
Threshold Stimulation
What is the minimal intensity of stimulation necessary to trigger a muscle contraction?
threshold stimulus
What is the minimal impulse that can initiate a muscle contraction?
Threshold stimulusThe minimal level of stimulation required to cause a fiber to contract is called the THRESHOLD STILULUS.
What is the minimal strengh of stimulation needed to elicit a muscle fiber contraction called?
Threshold
Why does repetitive nerve stimulation result in decreased amplitude of the muscle contraction?
The destruction of ACh receptors makes skeletal muscle less responsive to nerve stimulation and more likely to prematurely fatigue. With fewer ACh receptors available to bind to ACh, the skeletal muscle cell membrane potentials have a more difficult time reaching the threshold potential and initiating contraction. Thus, the normal degree of fatigue noted during repetitive nerve stimulation is exacerbated in an individual with myasthenia gravis.
The minimal strength of stimulation needed to elicit a muscle contraction is called the threshold stimulus?
true
What amperage can stop your heart?
Actually it is in the milliamp range. That is thousandths of an amp. 1 mA - Threshold of feeling, tingling sensation. 10-20 mA - "Can't let go!" current - onset of sustained muscular contraction. 100-300 mA - Ventricular fibrillation, fatal if continued
