Examlex
In the sixth substage of Piaget's sensorimotor period, external exploration is replaced by mental exploration.
Epinephrine
Known as adrenaline, this compound functions both as a hormone and a neurotransmitter, crucial for triggering the fight-or-flight reaction in the body.
Cortisol
A steroid hormone produced by the adrenal glands, often released in response to stress, affecting metabolism and immune responses.
Natural Killer Cells
A type of white blood cell that plays a crucial role in the body's immune response by attacking tumors and virally infected cells.
Immune System
The complex network of cells, tissues, and organs that work together to defend the body against infections, diseases, and other harmful invaders.
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