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Unit 3: Biology of Behavior

Bundled axons
Instructions for making an organism , consists of all genetic material in its chromosomes
System-slow, set of glands that secrete hormones (chemical messengers) into bloodstream
study of relative power and limits of genetic (DNA) and environmental influence on behavior (heritability=variation among genes, depends on interaction)
A brief electrical charge that travels down an axon, followed by refractory period
Nerve network, controls arousal
Sensory and motor neurons that connect CNS to body
Scan-visual display of brain activity that detects were glucose goes
Scientific study of the links b/w biological and psychological processes, similar to cognitive neuroscience
Lobes-Receives info primarily form opposite ear
Neurons that carry outgoing info from CNS to muscles and glands
Glands that help arouse the body in times of stress
Area of cerebral cortex not involved in primary motor or sensory functions
Level of stimulation required to trigger neural impulse, leads to all or none response
Controls voluntary movements
Reabsorption of the sending neuron
Brain's sensory control center
Controls heartbeat and breathing
Large band of neural fibers connecting 2 brain hemispheres, opposite of split brain
Automatic response
Nervous system-the division of PNS
Tissue destruction
Opiate-like neurotransmitters
Like MRI but also shows brain's functioning not just structure
Gland- most important, regulates growth and controls other glands
Processes sensory input, coordinates movement and balance, enables nonverbal learning and memory
Amplifies recording of the waves of electrical activity across brain
A molecule that binds to receptor site and stimulates a response- opposite of antagonist
Subfield of biology that studies molecular structure and function of genes
Scan- series of X-ray photos of brain structure
Nervous system- the division of ANS that calms body
Lobes-Involved in speaking, muscle movements,plans and judgements
Nervous system of PNS that controls glands and muscles of internal organs
Lobes- receives sensory input for touch and body position
Brain and spinal cord