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Psychology - Ch. 3: Biology & Behavior
Vocabulary Words from Ch. 3 in Psychology-Principles in Practice.
Terms in this set (29)
Central Nervous System
the part of the nervous system that consists of the brain and spinal cord
Peripheral Nervous System
made up of nerve cells that send messages between the central nervous system and other parts of the body
nerve cells that run through our entire bodies and communicate with each other.
the part of a neuron that produces the energy needed to fuel the activity of the cell.
thin fibers that receive information from other neurons and pass the message through the cell body.
carries messages away from the cell body of a neuron and vary greatly in length.
a white fatty substance that insulates and protects the axon.
small fibers at the end of an axon that branch out.
the junction between the axon terminals of the sending neuron and the dendrites of the receiving neuron.
chemical that are stored in sacs used by a neuron to transmit an impulse across synapses to another cell.
column of nerves about as thick as a thumb that extends from the brain down the back and is protected by the bones of the spine.
Somatic Nervous System
transmits sensory messages to the central nervous system. It is activated by touch, pain, changes in temperature, and changes in body position.
Autonomic Nervous System
a division of the peripheral nervous system that regulates the bodies vital involuntary functions such as heartbeat, breathing, digestion, and blood pressure.
an important structure of the hindbrain part of the brain, nearest the spinal cord which controls breathing, heart rate and blood pressure.
a brain structure located in front of the medulla and is is involved in regulating respiration, movement, attention, alertness, and sleep.
sometimes called the "little brain" looks like the larger part of the brain ( cerebrum ) but it is much smaller.
Reticular Activating System
this part of the brain stem is involved in arousal and attention, sleep and wakefulness, and control of reflexes.
Latin word meaning "inner chamber" and a critical structure and the brains 'sensory relay station.'
a tiny brain structure located under the thalamus that acts as a control center for recognition and analysis of hunger, thirst, fatigue, anger, and body temperature.
forms a fringe along the inner edge of the cerebrum and is involved in learning and memory, emotion, sex, hunger, and aggression.
Latin for brain, is the crowning glory of the brain. Only in human beings does the cerebrum make up such a large part of the brain.
the surface layer of the Cerebrum made up of wrinkled ridges and valleys. What we consider gray brain matter.
a structure in the brain connecting the two cerebral hemispheres, the right and left brain.
areas of the brain which serve mainly to shape information into something meaningful on which we can act.
the system of glands that produce hormones that help to control bodily metabolic activity.
chemical substances secreted by endocrine glands into the blood stream that affect body processes.
the transmission of human characteristics from parents to offspring.
the basic building blocks of heredity. A sequence of DNA that codes for a protein and thus determines a trait.
a threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next
THIS SET IS OFTEN IN FOLDERS WITH...
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