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After nervous stimulation of the muscle cell has ceased the calcium in the muscle?
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What after nervous stimulation of the muscle cell has ceased the calcium?
is actively pumped into the extracellular fluid for storage.
After nervous stimulation of the muscle cell has ceased what happens to the calcium?
calcium is actively pumped into the extracellular fluid for storage until the next contraction
What muscle can contract without the need for the nervous stimulation?
Smooth & cardiac muscle.
What are smooth muscle contractions?
Spindle shaped by faireena singh
What substance is released by the nervous system and excites muscle cells?
Acetylcholine is the neurotransmitter released by the nervous system that excites muscle cells, leading to muscle contraction.
When the nervous system signals a muscle to contract what ion channels open?
When the nervous system signals a muscle to contract, calcium channels open in the muscle cell membrane. Calcium ions then flow into the muscle cell, triggering a series of biochemical events that eventually lead to muscle contraction.
Which type of muscle CANNOT contract without being stimulated by the nervous system?
Cardiac muscle. Unlike skeletal and smooth muscle, the contraction of cardiac muscle is involuntary and requires stimulation from the nervous system. This ensures that the contractions of the heart are synchronized and coordinated.
What is the main cation affecting electrical stimulation of the heart?
The main cation affecting electrical stimulation of the heart is calcium (Ca2+). Calcium plays a crucial role in the initiation and propagation of action potentials in cardiac muscle cells, leading to contraction and the pumping of blood throughout the body.
What is the function role of t tubules?
Enhance cellular communication passage for nervous stimulation during muscle contraction.
Skeletal muscles need nerve stimulation for contraction to occur?
Yes, nerve stimulation is necessary for skeletal muscles to contract. This stimulation causes an action potential to travel down the motor neuron, leading to the release of acetylcholine at the neuromuscular junction, which triggers muscle contraction by causing calcium release in the muscle fiber. Without this nerve input, skeletal muscles would not be able to contract voluntarily.
Serves as the actual go signal for muscle contraction?
in anatomy what destroys acetylcholine(I believe that Ans to the 1st Q: would be) calcium ionsremove the inhibition of the troponin molecules which then triggers muscles contraction.(the 2nd Ans would be) acetylcholinesterase distroys Ach in the synaptic cleft after nervous stimulation stops.
