All-hay and alfalfa January hay price averages were slightly lower in USDAâs most recent Agricultural Prices report released last week. The all-hay price was $124 per ton, down $2 per ton from the p...
What is the role of acetylcholine in a skeletal muscle contraction? Your answer: It binds to receptors and initiates a change in ion permeability that resutls in the contraction of the muscle cell. 3. Describe the process of excitation-contraction coupling in skeletal muscle fibers. Your answer: This is the entire process of the neuromuscular juntion leading to the end-plate potential.
What are the steps in muscle contraction. 1. Efferent motor cortex axons synapse on the spinal cord and generate an action potential in the Î±-motor neuron. 2. The action potential travels to the axon terminal, releasing acetylcholine into the synaptic cleft.3.Acetylcholine binds a receptor on the skeletal muscle cell and generates an action potential, increasing Ca++ release from the sarcoplasmic reticulum.4. Ca++ initiates contraction, resulting in shortening of the muscle cell and, consequently, movement.he action potential travels to the axon terminal, releasing acetylcholine into the synaptic cleft. 3. Acetylcholine binds a receptor on the skeletal muscle cell and generates an action potential, increasing Ca++ release from the sarcoplasmic reticulum.