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Somatic Nervous System controls the voluntary movement of skeletal muscles
Autonomic Nervous System Control "smooth muscle" systems, such as digesting, arousal, and heart beat
Peripheral Nervous System The network of Sensory and motor neurons that connect the Central Nervous System to the body. Includes ANS, and SNS
Central Nervous System Brain and Spinal cord
Sympathetic Division----Autonamic System Governs responses to stress under contitions of threat or emergency, when action must be quick and powerfully energized---arousing
Parasympathetic Monitors the routine operation of the body's internal functions---calming
Frontal Lobe Reasoning, planning, parts of speech, and problem solving (movement, exectutive controls)
Parietal Lobe Perception of stimuli related to touch, pressure, temperature and pain (somatosensory)
Temporal Lobe Perception and recognition of auditory stimuli(hearing and memory)
Occipital Lobe visual information, color, movement, shape, shading, recognition of human faces, (vision)
When the brain is damaged, oh goodness!, what will you do??? The brain can change it's functions and shape
psychosocialdwarfism condition when children don't grow from not feeling other's human touch.
Cerebrum Largest part of brain responsible for sensing, thinking, learning, emotion, consciousness, and voluntary movement
Corpus callosum The bridge of fibers in the middle of the brain that passes information between the two cerebral hemispheres
Thalamus Part of brain that serves as the relay for cortex; handles incoming and outgoing signals---motor controls to muscles and glands
Hypothalamus Part of brain responsible for regulating basic biological needs; hunger, thirst, temperature control
Pituitary Gland "Master" gland that regulates other endocrine glands----secretes growth hormones
Hippocampus Part of limbic system involved in learning and memory
Pons Part of brain involved in sleep and arousal
Medulla Part of brain responsible for regulating largely unconscious functions such as breathing and circulation---controls reflexes; vomiting, coughing, sneazing
Reticular Formation Group of fibers that carry stimulation related to sleep and arousal through brainstem
Spinal Cord Responsible for transmitting information between the brain and the rest of the body; handles simple reflexes as well
Cerebellum Structure that coordinates fine muscle movement and balance.
Amygdala Part of limbic system involved in emotion and aggression
Sensory Neuron Recieve info. from sensory receptors
Interneuron transfers and interprets impulses between neurons
Motor Neuron sends impulses to muscles and glands
Dendrite Part of neuron that recieves info.
Soma Part of neuron that integrates info. from dendrites---decides wether or not to fire neural impulses
Axon Transmits messages to terminal buttons
Terminal Buttons end of Axon that secretes neurotransmitters in response to impulse.
Neurotransmitter Chemical messenger that acts within the synapse
Synapse point at which the neurons interconnect
Myelin sheath Insulation----speeds up transmission in axon
Glial Cells Produce myelin sheath, they also provide scaffolding for neurons. There are many more glial cells than neurons 10:1
Reuptake process when neurotransmitters are pumped back into the transmitting neuron, otherwise they are broken up by enzymes
Glutamate main excitatory neurotransmitter in the CNS
GABA the most common inhibitory neurotransmitter. too much->unmotivated and sluggish; too little->anxiety and epilepsy
Acetylchlorine neurotransmitter that facilitates some kinds of learning and memory. messenger for motorneurons too, controls muscle contraction. too much->tremors; too little->anxiety and epilepsy
Norepinephrine neurotransmitter that coincides with heart rate, vigilance, stress, and mood. too much->jittery; too little->unmotivated and sluggish
Endorphines neurotransmitter that creates pleasure, reduces pain, and influences emotion.too much->feel no pain
Dopamine neurotransmitter that influences movement, learning, and attention. too much->schizophrenia; too little->parkinson's
Seratonin neurotransmitters that regulate mood, hunger, sleep, and arousal. too much-> always sleepy; too little->OCD depression, anxiety
Agonist Drug taht increases the synthesis or release of neurotransmitters; mimics neurontransmitters by fitting into receptors; inhibits reuptake; inhibits the enzymes that break them down.
Antagonist Drug that interfers with the release of neurotransmitters;occupies and blocks receptors; inhibits the affects of agonist drugs