Biopsychology (Psych 214) Coverage PDF

Summary

This document provides an overview of biopsychology concepts. It details various types of neurons, their functions, and interactions in the nervous system. The text also touches upon topics like neurotransmitters and their effects on brain function, along with various drugs that affect the brain and their mechanisms.

Full Transcript

COVERAGE FOR BIOPSYCHOLOGY (PSYCH 214) Edited by: Normz EXCITATORY POSTSYNAPTIC POTENTIAL (EPSP) – INVERTERBRATE NEURON – nerve cell of an (gra...

COVERAGE FOR BIOPSYCHOLOGY (PSYCH 214) Edited by: Normz EXCITATORY POSTSYNAPTIC POTENTIAL (EPSP) – INVERTERBRATE NEURON – nerve cell of an (graded depolarization) results from a flow of animal without a backbone (insects, worms, etc. sodium ions into the neuron. NEURONS - receive information and transmit it SPATIAL SUMMATION – (summation over space) to other cells. Synaptic inputs from separate locations combine their effects on a neuron. GLIA - support cells of the nervous system, help neurons do their job. FLEXOR MUSCLES - These muscles bend a joint, bringing two bones closer together. ASTROCYTE - star-shaped cells that takes care of the neurons. EXTENSOR MUSCLES - These muscles straighten a joint, increasing the angle between two bones. OLIGODENDROCYTE - create a myelin sheath for the axons in CNS. CHARLES SHERRINGTON - physiologically demonstrated that communication between one MICROGLIA - immune cells of the brain. neuron and the next differs from communication along a single axon. EPENDYMAL CELLS - produces cerebrospinal fluid (CSF). PRESYNAPTIC NEURON - The neuron that delivers transmission. RADIAL GLIA - guides the migration of neurons to fall into place. L-DOPA - a precursor to dopamine, helps increase the supply of dopamine. SCHWANN CELLS - create a myelin sheath for the axons in PNS. ALPHA-METHYL-PARA-TYROSINE - temporarily blocks the production of dopamine. SATELLITE CELLS - protective bodyguard for neurons in the PNS. GUANOSINE TRIPHOSPHATE - an energy- storing molecule. ENTERIC GLIA - support and nourish the neurons in your gut (digestive system). NEUROPEPTIDES – (chains of amino acid) as neuromodulators, because they have properties CAMILLO GOLGI – (Italian investigator, Golgi that set them apart from other transmitters. clung theory – nerve cells merge) Found a way to stain nerve cells with silver salts. NICOTINE - a compound present in tobacco, stimulates a family of acetylcholine receptors, REFLEX ARC - The circuit from sensory neuron to conveniently known as nicotinic receptors. muscle response. OPIATE DRUGS – (relieves pain), derived from TEMPORAL SUMMATION - when a neuron the opium poppy. Familiar opiates include receives multiple signals from the same source in morphine, heroin, and methadone. a short period. METHYLPHENIDATE (RETALIN) - another ANTERIOR - toward the front end (NOSE) stimulant drug, is often prescribed for people with attention deficit/hyperactivity disorder POSTERIOR - toward the rear end (HEELS) (ADHD). SUPERIOR - above another part (UPPER HALF OF THE BODY) – HIGHER UP COCAINE – (stimulant drug – risk of addiction), produce a rapid rush of effect on the brain. INFERIOR – below another part (LOWER PART OF inhibit the transporters for dopamine, serotonin, THE BODY) – LOWER DOWN and norepinephrine, thus decreasing reuptake and prolonging the effects of the IPSILATERAL - On the same side of the body neurotransmitters. (RIGHT – RIGHT) HALLUCINOGENS – drugs that distort CONTRALATERAL - On the opposite side of the perception, such as lysergic acid diethylamide body (LEFT – RIGHT / RIGHT – LEFT) (LSD)- chemically resemble serotonin. (Effect: hallucinogenic effect is that the increased DISTAL - Located more distant from the point of spontaneous communication within the brain origin or attachment. (FINGERS) dominates over the input coming from the sense organs. WHITE MATTER - containing myelinated axons. SYMPATHETIC NERVOUS SYSTEM – (decreases CANNABINOIDS - the active chemicals in digestive activity), a network of nerves that marijuana, bind to anandamide or 2-AG prepare the organs for a burst of vigorous receptors on presynaptic neurons, indicating, activity. "The cell got your message. Stop sending it. PARASYMPATHETIC NERVOUS SYSTEM – HORMONES – (function more like a radio (increases digestive activity), sometimes called station), a chemical secreted by cells in one part the "rest and digest" system, facilitates of the body and conveyed by the blood to vegetative, non-emergency responses. influence other cells. SPINAL CORD – (Part of the CNS within the spinal ANTERIORY PITUITARY - composed of glandular column), communicates with all the sense organs tissue, synthesizes six hormones, although the and muscles except those of the head. hypothalamus controls their release. CORONAL PLANE - the plane of the brain that SOMATIC NERVOUS SYSTEM – which consists of divides it into front (anterior) and back the axons conveying messages from the sense (posterior) sections. (FRONT/BACK) organs to the CNS and from the CNS to the muscles. SAGITTAL PLANE - the plane of the brain that divides it into left and right sides. (LEFT/RIGHT) AUTONOMIC NERVOUS SYSTEM - controls the HORIZONTAL PLANE - the plane of the brain that heart, intestines, and other organs. divides it into top and bottom sections. (TOP/BOTTOM) DORSAL - means toward the back (BACK) VENTRAL - means toward the stomach. (FRONT)

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