These are the brain, heart, kidneys, liver, and lungs. The human brain is the body's control center, receiving and sending signals to other organs through the nervous system and through secreted hormones.
For the beetle genus, see Coprini. Synapsis (also called syndesis) is the pairing of two homologous chromosomes that occurs during meiosis. It allows matching-up of homologous pairs prior to their segregation, and possible chromosomal crossover between them. Synapsis takes place during prophase I of meiosis.
Prophase is the next phase and it is where centrosomes move towards the poles (either end) of the cell. They start producing spindle fibres. The nuclear membrane breaks down, which will allow the chromosomes to move towards the poles during anaphase.