Introduction to psychology/Key words for chapter three
This is a list of jargon for psychology. There is a short statement about what the term is and possibly a link to wipedia or wiktionary.
- 1 Action Potential
- 2 Afferent
- 3 All-or-none principle
- 4 Amygdala
- 5 Autonomic nervous system
- 6 Axon
- 7 Saltatory conduction
- 8 Central nervous system (CNS)
- 9 Cerebellum
- 10 Cerebrum
- 11 Computed tomography
- 12 Corpus callosum
- 13 Cortex
- 14 Cortical lobes
- 15 Dendrite
- 16 Depolarization
- 17 Efferent
- 18 Grade potential
- 19 Neurotransmitter
- 20 Neuron
- 21 Nodes of Ranvier
- 22 Organelle
- 23 Refractory phase
- 24 Synapse
- 25 Synaptic vesicle
- A signal passing through a neuron is considered an action potential.
- In the nervous system, afferent neurons--otherwise known as sensory or receptor neurons--carry nerve impulses from receptors or sense organs toward the central nervous system.
- Theory that once a signal is started that it will always travel the length of a neuron at a fixed intensity, not getting stronger or weaker.
- The part of the limbic with a primary role in the processing and memory of emotional reactions.
- The part of the peripheral nervous system that controls the function of many glands and smooth-muscle organs.
- It is divided into the sympathetic and parasympathetic systems.
- The single long fiber extending from the cell body of a neuron; carries the signal to the synapse
cell body aka Soma
- The brain and the spinal cord.
- Region of the brain that plays an important role in the integration of sensory perception and motor output.
- The cerebrum deals with language and communication, movement, olfaction (smelling), memory formation, and emotion.
- A medical imaging method employing tomography where digital geometry processing is used to generate a three-dimensional image of the internals of an object from a large series of two-dimensional X-ray images taken around a single axis of rotation.
- Helps reveal structural abnormalities.
- The corpus callosum connects the left and right cerebral hemispheres.
- Most (but certainly not all) communication between regions in different halves of the brain are carried over the corpus callosum.
- The outer layer of the cerebral hemispheres; controls complex cognitive processes.
- Four arbitirarily deignated divisions of the cortex.
- The recieving portion of a neuron
- A process that the nueron goes through after the passage of an action potential.
- Depolarization is when a cell is moving farther away from 0mV while hyperpolarization is when the cell is moving closer to 0mV.
- In the nervous system, efferent nerves – otherwise known as motor or effector neurons – carry nerve impulses away from the central nervous system to effectors such as muscles or glands.
- Neurotransmitters are used to relay, amplify and modulate electrical signals between a neuron and another cell.
- Amino acids are an example of a neurotransmitter.
- Nodes of Ranvier are regularly spaced gaps in the myelin sheath around an axon or nerve fiber.
- An organelle is a discrete structure of a cell having specialized functions.
- After the action potential the refractory phase marks a period where the neuron is less excitable.
- Synapses, or chemical synapses, are specialized junctions through which cells of the nervous system signal to one another and to non-neuronal cells such as muscles or glands.
In a neuron, synaptic vesicles, also called neurotransmitter vesicles, store the various neurotransmitters that are released during calcium-regulated exocytosis at the presynaptic terminal into the synaptic cleft of a synapse.