The Biological Basis of Behavior
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Genotype | The genetic structure an organism inherits from its parents.
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Phenotype | The observable characteristics resulting from the interaction between one's genotype and it's environment.
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Heredity | The transmission of traits from parents to offspring.
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Genetics | The inheritance of physical and psychological traits of ancestors.
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Genes | The biological units of heredity responsible for the transmission of traits.
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Sociobiology | The evolutionary explanation for the socail behavior and social systems of human and other animal species.
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Broca's Area | The region of the brain that translates thoughts into speech.
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Lesions | Injuries to or destruction of brain tissue.
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Electroencephalogram(EEG) | A recording of the electrical activity of the brain.
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PET scans | Provides a picture of the brain by recording the radioactivity emitted by cells during cognitive or behavioral activities.
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Magnetic Resonance Imaging | Provides a picture of the brain by using magnetic and radio waves.
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Peripheral Nervous System | Part of the nervous system that is composed of the spinal cord and cranial nerves that connect the sensory receptors to muscles and glands.
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Somatic Nervous System | The subdivision of the peripheral nervous system that connects the central nervous system to the skeletal muscles.
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Central Nervous System | Part of the nervous system consisting of the brain stem and the spinal cord.
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Autonomic Nervous System | The subdivision of the peripheral nervous system that connects the body's involuntary motor responses to the smooth, cardiac muscle and glands.
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Sympathetic Division | The subdivision of the autonomic nervous system that deals with emergency response and mobilization of energy.
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Parasympathetic Division | The subdivision of the autonomic nervous system that monitors the body's internal functions and conserves body energy.
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Brain Stem | The brain structure that regulates the basic life processes.
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Medulla | The region of the brain stem that regulates breathing, waking, and heartbeat.
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Pons | The region of the brain stem that connects the spinal cord with the brain.
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Reticular Formation | The region of the brain stem that alerts the cerebral cortex to incoming sensory signals and is responsible fro maintaining consciousness and awakening from sleep.
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Thalamus | The brain structure that relays sensory impulses to the cerebral cortex
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Cerebellum | The region of the brain that controls motor coordination, posture, and balance, as well as the ability to learn control of body measurements.
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Limbic System | The region of the brain that regulated emotional behavior, basic motivational urges, and memory, as well as major physiological functions.
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Hippocampus | The part of the limbic system that is involved in explicit memory.
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Amygdala | The part of the limbic system that controls emotion, aggression, and emotional memory.
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Hypothalamus | The brain structure that regulates eating, drinking, and homeostasis.
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Neurotransmitters | Chemical messengers released from neurons that cross the synapse from one neuron to another, stimulating the postsynaptic neuron.
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Occipital Lobe | The rearmost region of the brain, which contains the primary visual cortex.
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Parietal Lobe | The region of the brain behind the frontal lobe and above the lateral tissue; contains the somatosensory cortex.
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Pituitary Gland | Located in the brain, the gland that secretes growth hormone and influences the secretion of hormones by other endocrine glands.
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Refractory Period | The period of rest during which a nerve impulse cannot be activated in a segment of an axon.
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Sensory Neuron | The neuron that carries messages from sense receptors toward the central nervous system.
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Or sort by any of the columns using the down arrow next to any column heading.
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