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13 terms

The Biological Basis of Behavior

Chapter 2
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Psychobiology
The branch of science that deals with the biological basis of behavior and mental phenomena
Nervous System
The network of nerve cells and fibers that transmits nerve impulses between parts of the body.
Neurons
Individual cells in the nervous system that receive, integrate, and transmit information.
Neural Impulses
messages that travel along neurons, electrochemical in nature
Synapses
the gaps between adjacent neurons across which chemical signals are transmitted
Central Nervous System
brain and spinal cord
Peripheral Nervous System
Connects the central nervous system to the limbs and organs.
Endocrine System
the body's chemical communication system; a set of glands that secrete hormones into the bloodstream
Hormones
A regulatory substance produced in an organism and transported in tissue fluids such as blood or sap to stimulate specific cells or tissues into action
Genetics
the study of heredity and the variation of inherited characteristics.
Genes
a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring
Chromosomes
threadlike structures made of DNA molecules that contain the genes
DNA
a complex molecule containing the genetic information that makes up the chromosomes