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.
Black Dragon is a variety of Coleus which is a member of the Solenostemon family. Its botanical name is Solenostemon scutellarioides 'Black Dragon' .A type of Ornamental, it mainly grows as an Annual plant-which means it typically only grows best for a single growing season.Black Dragon is known for growing to a height of approximately 1.24 feet (that's 38.0 cm in metric) with a ground cover-like habit.Black Dragon Coleus is normally quite a low maintenance plant and is normally very easy to grow-great for beginner gardeners!lack Dragon likes a position of partial sun and remember to water often. Black Dragon is generally regarded as a tender plant, so remember to wait until your soil is warm and the night time temperature is well above freezing before moving outside.