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1 Describe the ionic events underlying the nerve action potential 2. Describe the steps in cross bridge cycle that produces skeletal muscle contraction.?
Wiki User
∙ 14y ago
thick filaments pulling thin filaments toward the center of the sarcomere
Wiki User
∙ 14y ago
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An environmental stimulus acting on the body initially produces an electrical response called aan in the receptor neuron?
generator potential
The cross between the homozygous tall parent and the honozygous short parent produces only tall offspring what is the term used to describe the allele for shortness?
recessive
How does synaptic integration determine if a nerve impulse is generated or not generated in a neuron?
Neurons integrate incoming signals and sum up the excitatory and inhibitory signals, integration. The excitatory neurotransmitter produces a potential change (signal). This signal pushes the neuron closer to an action potential. If the neuron receives excitatory signals chances are that the axon will transmit a nerve impulse. The inhibitory neurotransmitter produces signals that drive neurons further from an action potential. If neurons receive both the inhibitory and the excitatory signals the summing of the signals may prohibit the axon from firing.
Why does the gastrocnemius muscle contract after stimulating the sciatic nerve?
The gastrocnemius is stimulated by a branch of the sciatic nerve called the tibial nerve. This causes contraction and produces plantar flexion of the foot. When a person stands on their "tippy toes" that is plantar flexion. This is a function of this nerve.
Supporting structure of the cell that is involved in movement?
In cells (Bacterial), the structure present for movement is Flagella.In human cells, no such structure is present, then also movement occurs.There is a molecular mechanism attached with it.The presence of calcium ions (intracellular) which on excitation binds with the specific protein and initiate the chain of reaction which leads to contraction. It produces movement.Ca-Calmodulin complex-Initiation of Myosin light chain kinase-Phosphorylation-Contraction.
What happens when there is contraction of the dartos muscle?
produces an erection
What do contraction and relaxation of muscles produce?
It produces protein.
The expansion and contraction produced by blood as it moves through an artery produces the?
Pulse
What are muscles?
Muscles are tissues composed of fibers, the contraction of which produces movement in the body.
What is the type of muscle contraction that produces movement in a joint and allows the muscle to shorten?
By tensing.
What assist in the digestion of lipids?
the contraction of stomach walls produces heat and digist lipids
What type of energy does a toilet?
The potential energy of the water in the tank.
What is the name of the neurotransmitter that produces an end plate potential?
Acetylcholine
Produces quick muscle contractions to make heat?
Shivering is the rapid contraction and relaxation of muscles to generate heat.
Which internal energy source produces heat by converting gravitational potential energy into thermal energy?
Which internal energy source produces heat by converting gravitational potential energy into thermal energy?
What term is used to describe the DNA which produces insulin?
pancreas
What are the effect of electricity?
effects of electricity: current passes through closed circuit, from higher potential to lower potential,it produces heat
