Upgrade to remove ads
Psych Mods 3 & 4 Bio Psych
Psychology study cards for Modules 3 and 4.
Terms in this set (63)
study the links between our biology and our thoughts, feelings, and our behaviors.
Building blocks of the nervous system. Control sudden reactions. Transmit messages when stimulated by signals from sensory receptors or when triggered by chemical signals.
a brief electrical charge that travels down the axon. ( Natural Impulse )
If the combined action potential signals are strong enough, or reach the ____ level the neuron fires. Transmitting the action potential down it's axons in an electric process.
Neuron's Reaction is
all-or-none, it either fires or it doesn't.
Cell's life support center, contains nucleus.
Branch-like fibers that receive messages from other cells, then sends those messages to the cell body. The "Listeners"
Pass messages from the cell body to other neurons, muscles, or glands.
Tips are called Terminal buttons, form junctions with other cells. The "Speakers"
Covers the axon of some neurons. Like rubber on an electrical wire. Helps speed up neural impulses.
Sequence of transmission of neural impulses
Dendrite - Cell Body - Axon - Synapse - Dendrites of other Neuron
When action potentials reach the end of an axon, they stimulate the release of chemical messengers called _____
Chemical messengers pass on their
excitatory pushers of inhibitory pullers messengers as they jump over the tiny gap between neurons and connect to receptor sites on neighboring neurons.
chemical messengers fired by neurons that cross the synaptic gap between neurons
The junction between the axon tip of the sending neuron and the dendrite of the receiving neuron
Functions: Enables muscle actions, learning and memory.
Malfunctions: Alzheimers disease causes these neurons to deteriorate
Influences movement, learning, attention, and emotion.
Excess is linked to schizophrenia. Deficiency of it leads to Parkinsons.
Affects mood, hunger, sleep, and arousal.
Undersupply leads to depression.
Helps control alertness and arousal
Undersupply can lead to depression
A major inhibitory neurotransmitter. Relaxes Nervous System.
Undersupply linked to seizures, tremors, and insomnia.
Major excitatory neurotransmitter; involved in memory
Oversupply can overstimulate the brain, producing migraines or seizures.
Endorphins (morphine within)
Pain, control, and pleasure. Natural opiates released in response to pain or vigorous exercise.
Sometimes pain is so intense that the body's natural endorphins do not provide enough relief.
EXCITE! they may mimic the effects of NTMers or block their reuptake, keeping them active.
INHIBIT. they block NTMers from releasing.
The body's speedy electrochemical communication network. Consists of peripheral and central groups.
carry messages from the body's tissues and sensory organs to the spinal cord and brain. Incoming Mail
carry outgoing messages from the central nervous system to the muscles and glands. Outgoing Mail
INTERNally communicates between the sensory inputs and motor outputs.
Peripheral Nervous System
The sensory and motor neurons that connect the central nervous system to the rest of the body.
Somatic Nervous System
enables voluntary control of our skeletal muscles.
Autonomic Nervous System
controls our glands and muscles of our internal organs; influences gland activity, heartbeat, and digestion.
Sympathetic Nervous System
arouses the body, mobilizes your body's energy in stressful or exciting situations. Makes you alert and ready for action.
Parasympathetic Nervous System
When stress subsides, this decreases your heartbeat, lowers your blood sugar, and so forth.
Central Nervous System
Brain and Spinal Cord. Enables our humanity- or thinking, feeling, and acting. Spinal cord is an information highway that connects our peripheral nervous system to the brain.
Body's slow chemical communication system. Slow acting but long lasting. Set of glands that secretes hormones into the blood stream.
chemical messengers that are produced in one tissue and affect another, including the brain. Influence interest in sex, food, and aggression.
ordered by our autonomic nervous system in a moment of danger.
releases hormones that influence growth, and its secretions also influence the release of hormones. Called the Master Gland.
Oldest part of the brain, central core of the brain, responsible for autonomic survival functions. Location: begins where the spinal cord swell as it enters the skull.
Medulla Oblongata Def+Loc
The base of the brainstem, controls heartbeat and breathing.
Relays info. between the higher and lower brain regions. Deals primarily with sleep, respiration, swallowing, bladder control, hearing, equilibrium, taste, eye movement, facial expressions, facial sensations, and posture.
The Brain's sensory switchboard. Loc: Top of the brainstem. Directs messages to the sensory receiving areas in the cortex and transmits replies to the cerebellum and medulla. Means Inner Chamber.
Reticular Formation Def+Loc
Loc: inside the brainstem. A nerve network in the brainstem that plays an important role in controlling arousal and excitement.
Cerebellum Loc + Def
"The little brain" size of a baseball Loc: attached to the rear of brainstem. Processes sensory input ENABLES NONVERBAL LEARNING AND MEMORY. COORDINATES VOLUNTARY MOVEMENT AND BALANCE.
memory, emotions, and drives. Three main parts: Amygdala, Hypothalamus, and Hippocampus.
involved in aggressive and fearful emotional responses.
involved in various bodily maintenance functions, pleasurable rewards, control of endocrine system. Loc: below the thalamus.
processes factual and experienced MEMORY.
A __ is like an elephant and elephants never forget.
Thick surface layer of interconnected neural cells. Covers both cerebral hemispheres (r&l). Ultimate control and information processing center. 80% of the brain's weight. 2 hemispheres with 4 lobes.
Right and Left Hemispheres
Controls the bodies opposite sides. Most people are left brained.
Frontal Lobes Loc + Def
Located behind your forehead. Involved in decision making, problem solving, planning, speaking, and muscle movements.
Parietal Lobes Loc and Def
Loc: at top and to the rear (where old men are balding). Deals with the reception and processing of sensory information and spatial reasoning.
Occipital Lobes Loc + Def
Loc: at the back of your head. Includes visual areas.
Temporal Lobes Loc + Def
Loc: on the side of your head just above your ears. Deals with memory, emotion and includes language and auditory areas.
Motor Cortex Loc + Def
Loc: rear of the frontal lobes. Controls voluntary movements. Parallel to and right infront of the sensory cortex.
Sensory Cortex Loc + Def
Located at the front of the parietal lobes, parallel to and right behind the motor cortex. Receives information from our senses.
involved in higher mental functions, learning, remembering, thinking and speaking. Makes up 3/4 of the cerebral cortex. these AREAS interpret integrate and act on information processed by the sensory areas found in all four lobes.
Broca's Area Loc + Def
Controls language and expression Loc: left frontal lobe directs muscle movements involved in speech.
Wernicke's Area Loc + Def
Controls language reception (hearing and understanding) Loc: left temporal lobe.
Impairment of language. Usually caused by left hemisphere damage either to Broca's area (impaired speech) or to Wernicke's Area (impaired understanding)
Brains capacity for modification. If one hemisphere the other will usually pick up for it's functions. Diminishes with age.
the large band of neural fibers connecting the two brain hemispheres and carries messages between them.
a condition in which the brains two hemispheres are isolated by cutting the fibers connecting them.
YOU MIGHT ALSO LIKE...
Pearson Psychology Chapter 2
Psych Chapter 2 Vocab
Chapter 2: Neuroscience and Behavior
Psychology 1101 Chapter 2
OTHER QUIZLET SETS
Chapter 11: Nervous Tissue
Exam Two Terms
Final Gov Exam
Ap Government Flash Cards