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.
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.hat 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.