Neurotransmitters are formed in a presynaptic neuron and stored in small membrane-bound sacks, called vesicles, inside this neuron. When this neuron is activated, these intracellular vesicles fuse with the cell membrane and release their contents into the synapse, a process called exocytosis.
Modern timekeeping defines a day as the sum of 24 hours â but that is not quite correct. The Earth's rotation slows down over time. So in terms of solar time, most days are a little longer than 24 hours.
The sidereal day and the solar day. A sidereal day on Mars is the length of time that it takes the planet to rotate once on its axis. A sidereal day on Mars lasts 24 hours 37 minutes and 22 seconds. The solar day is how long it takes the Sun to return to the meridian.This position changes slightly each day, but a solar day on Mars lasts 24 hours 39 minutes and 35 seconds. Length of a day on Mars.NASA's Hubble Space Telescope took this close-up of the red planet Mars. There are many interesting facts about Mars beyond how long the day is.he solar day is how long it takes the Sun to return to the meridian. This position changes slightly each day, but a solar day on Mars lasts 24 hours 39 minutes and 35 seconds. Length of a day on Mars. NASA's Hubble Space Telescope took this close-up of the red planet Mars.