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Definition A hormone is a chemical messenger produced by glands in the endocrine system that regu...

Definition The hindbrain is a region at the base of the brain responsible for controlling vital l...

Definition Glutamate is a type of amino acid that plays a crucial role in the human body, particu...

Definition Glial cells are specialized non-neuronal cells found in the nervous system that play a...

Definition The genotype of an organism refers to its complete set of genetic instructions, which ...

Definition Genetics is the scientific study of heredity and variation in organisms. It focuses on...

Definition A gene is a segment of DNA that contains instructions for building proteins or RNA mol...

Definition Gamma-aminobutyric acid (GABA) is a neurotransmitter, which means it's a chemical that...

Definition The frontal lobe is one of the four main regions of the brain and is located at the fr...

Definition Endorphins are natural chemicals produced in your brain that act as your body’s way of...

Definition The endocrine system is a network of glands and organs that produce and release hormon...

Definition Deoxyribonucleic acid (DNA) is a molecule that contains the genetic instructions for b...

Definition Dendrites are tree-like extensions of neurons, which serve as the input regions where ...

Definition A chromosome is a thread-like structure found in the nucleus of cells that carries gen...

Definition The central nervous system (CNS) is the part of the nervous system responsible for pro...

Definition An axon is a long, slender projection of a nerve cell (neuron) that carries electrical...

Definition The autonomic nervous system (ANS) is a part of the peripheral nervous system that con...

Definition An allele is a specific form of a gene that can have different variations, which contr...

Definition Adrenaline, also known as epinephrine, is a hormone and neurotransmitter produced by t...

Definition A testable prediction about the relationship between two or more variables. Example A...