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What is the key intracellular event that stimulates muscle contraction?
Wiki User
∙ 12y ago
Depolarization
Wiki User
∙ 12y ago
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How could you describe the positive feedback system that occurs during labor?
The process of labor is induced by the release of the hormone Oxytocin from the pituitary gland. Oxytocin causes smooth muscle contraction associated with the uterus. Uterine contraction in turn causes the release of more Oxytocin from the pituitary, which causes more contraction. this represents a positive feedback loop of increasing amounts of Oxytocin and uterine contraction. Contractions of the uterus of course result in the movement of the fetus out of the birth canal (leaving the uterus, passing through the cervix, and out through the vaginal opening.
Describe the 'all or nothing' principle of muscle fiber recruitment?
HORRIBLY CONDENSED. An electrical event of sufficient strength from the end of a nerve to pass into a muscle fiber(s) (end plate) resulting fiber(s) tension. The more electrical events 'spikes" per second (rate coding) to a point the greater, to a point, the tension(s).
What is the event of fertilization in human.?
sex sex
What is an adverse event in health care?
It is an unwanted side effect or event, such as a harmful or unpleasant side effect to medication or potential risks in a medical procedure.
What is the first event of fracture healing?
Hematoma Formation
In a muscle fibre, the key intracellular event that stimulates muscle contraction is known as ?
depolarisation
What specific event initiates the contraction?
The specific event that initiates a muscle contraction is the release of calcium ions within the muscle cell. This triggers a series of chemical reactions that ultimately lead to the sliding of actin and myosin filaments, resulting in muscle contraction.
At the neuromuscular junction, the muscle contraction initiation event is?
binding of acetylcholine to membrane receptors on the sarcolemma
What historical event is an example of economic contraction in the US?
the Great Depression
What is the words or he contraction won't?
The contraction "won't" is short for "will not." It is used to indicate a future action or event that will not happen.
Is this'll a verb or a noun?
"This'll" is a contraction of "this will," which is a verb phrase. It is used to indicate a future action or event.
What event occurs as a result of a muscle action potential?
Reflex action
What is a circular muscle cell?
Event chain map from simplest to complex: small intestine, circular muscle cell, human, and digestive system
What events occur when the semilunar valves are open?
The semilunar valves are open when blood is being pumped by ventricular contraction. This event is called systole.
What is the Mechanism of incomplete tetanus and complete tetanus?
When we increase the stimulation frequency until the relaxation phase is eliminated. This event occurs very quick so the sarcoplasmic reticulum does not have time to reclaim the calcium ions. This calcium ion concentration in the cytoplasm couse continuous contraction of the muscle so complete tetanus occurs. Made by Barracuda
Which event is most significant in initiating the wave of depolarization in a cell?
diffusion of Na+ into the muscle fiber
What is the first event in expiration?
The first event in expiration is the relaxation of the diaphragm muscle, which is the primary muscle responsible for breathing. As the diaphragm relaxes, it moves upward, decreasing the volume in the chest cavity and causing air to be expelled from the lungs.
