Muscle contraction ends when calcium ions are pumped back to the sarcomere. During stimulation of the muscle cell, the motor neuron releases the neurotransmitter acetylcholine which travels across the neuromuscular junction (the synapse between the terminal bouton of the neuron and the muscle cell).
Hellebore. Helleborus. Hellebores are so easy and so pretty, they have a place in nearly every landscape. Their exquisite bowl-or saucer-shape flowers in white (often speckled), pinks, yellows, or maroon remain on the plant for several months, even after the petals have fallen. Deer-resistant and mostly evergreen, hellebores' divided leaves rise on sturdy stems and may be serrated (like a knife) along the edges. Grow hellebores in shade where soil remains moist; some hellebores prefer acid or alkaline conditions, depending on variety.
Rhodiola rosea, also called Arctic or Golden Root, is generally placed in a class of plants and fungi affectionately named 'adaptogens'. These are the great healers; the gifts to mankind that the plant community and earth have provided which are incredibly essential to surviving well during times of stress and pressure.hodiola rosea, also called Arctic or Golden Root, is generally placed in a class of plants and fungi affectionately named 'adaptogens'. These are the great healers; the gifts to mankind that the plant community and earth have provided which are incredibly essential to surviving well during times of stress and pressure.