The blood-testis barrier, formed by systentocyte cells, important beacuse it prevent immune cells to attack sperm cells.
The blood testis barrier prevents nutrients and leukocytes from passing through the Sertoli cells and into the seminiferous tubules, shielding developing spermatogenetic cells from contact with immune cells and antibodies.
It stops the basal lamina from being breached by the membrane antigens of differentiating sperm, which would otherwise enter the circulation and trigger the immune system.
Neurons are outnumbered by astrocytes, specialised glial cells, by a factor of roughly five. They continuously tile the entire central nervous system (CNS) and carry out numerous significant, complex activities in a healthy CNS.
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