In Giardia, proteins involved in iron-sulfur cluster assembly and protein folding appear closely related to mitochondrial homologs and localize to a relict mitosome (6,7).
When we tap your, let's say your patellar tendon that causes a stretch in a muscle spindle, this sends a signal back to the sensory neuron, which activates a motor neuron in the spinal cord to cause your knee to kick up.
During Stage 3, multiple brain areas work together to transfer information from short-term memory storage to long-term storage, stabilizing and strengthening long-term memory by coupling sleep spindles with slow waves.
The other one, the female pronucleus, takes shape from the nucleus of the ovum, and then the two then start to approach each other, pulled along a protein scaffolding, or mitotic spindle, between the two.
From these patients, they deduced that new memories are formed in the hippocampus, fear comes from the amygdala, and we recognize faces using the fusiform face area.
In essence, over a period of time several ships had encountered " an enormous thing" at sea, a long spindle-shaped object, sometimes giving off a phosphorescent glow, infinitely bigger and faster than any whale.
Metaphase 1 Homologous pairs move together along the metaphase plate: the paired homologous chromosomes align along an equatorial plane that bisects the spindle.