a neurotransmitter found in the brain, spinal cord, and parts of the peripheral nervous system
a hormone secreted by the adrenal medulla in response to low blood glucose, exercise and stress and causes a breakdown of glycogen to glucose in the liver, encourages the release of fatty acids from adipose tissue, causes vasodilation of the small arteries within muscle and increases cardiac output.
an attraction of a molecule to a certain site. An example is a neurotransmitter has a high affinity for its binding site.
class of molecules which are the building blocks for proteins. Amino acids are deionized when the pH deviates from 7.0 and binds to other amino acids to synthesize proteins
prevents formation of dopamine
The production of larger molecule from smaller building blocks. The process requires the input of energy and results in the synthesis of large molecules. example: amino acids are anabolicly combined to build a protein
a drug that opposes or inhibits the effects of a particular neurotransmitter
An agent that prevents or relieves convulsions.
an agent that blocks the parasympathetic nerves
drugs used to alleviate the symptoms of depression. This class of drugs are broken down into two classes: Tricyclics, which are potent inhibitors of noradrenaline and/or serotonin; and non tricyclics which work in a variety of waves
a molecule that is an invader to the body and evokes the response of the immune system. They are able to induce the production of antibodies and react in specific manner with antibodies.
Adenosine Triphosphate = The molecule which is responsible for providing most of the energy to the reactions of the cell. ATP is synthesized from adenosine diphosphate(ADP) and an inorganic phosphate (Pi). It releases energy when the the molecule is broken down to it synthesis components, ADP and Pi.
autonomic nervous system
the portion of the peripheral nervous system that controls the body’s vegetative functions
three large subcortical nuclei of the vertebrate brain: the putamen, the caudate nucleus and the globus pallidus.
They participate in the control of movement. Lesions of the basal ganglia occur in a variety of motor disorders including Parkinson's disease and Huntingdon's chorea.
a serious mood disorder characterized by cyclical periods of mania and depression
the catabolic metabolism of a large molecule to its smaller components.
brain excitability (e.g. electrical amplification of sensory signals)
the lowest part of the brain, which merges with the spinal cord. It consists of the medulla oblongata, midbrain and pons.
a class of neurotransmitters that includes dopamine, norepinephrine, and epinephrine
brain peptide that enhances REM sleep
area of the brain concerned primarily with somatic motor function, the control of muscle tone and
the maintenance of balance
the outer layer of the brain which is visible during normal viewing. Responsible for thought processes.
area of frontal lobe were thought and higher function reside.
the regular recurrence, in cycles of about 24 hours, of biological processes or activities especially known in sleep. The "rhythm" aspect appears to be in reference of the "biological clock" and on the schedule of light and dark cycles.
brain peptide that enhances REM sleep
a glucocoticoid secreted by the zona fasciculata of the adrenal cortex when it is stimulated by the release of ACTH. Cortisol then regulates the production of glucose and the body's energy balance.
is produced as a waste product of creatine and is directed entered into the blood stream from the kidneys. If there is an abnormal increase in creatinine, signifies an unusual decrease in the kidney's glomerular filtration rate (sign of an unhealthy kidney).
delta frequency brain waves
regular electrical activity of approximately 1-4 Hz recorded from the brain; occurs during the deepest stages of sleep.
a mental state of depressed mood characterized by feelings of sadness, despair and discouragement.
Depression ranges from normal feelings of the blues through dysthymia to major depression.
diminishing response to equivalent amount of substance
a neurotransmitter; a catecholamine
Electrically induced convulsions primarily used in the treatment of severe affective disorders and schizophrenia.
a diagnostic test which measures the electrical activity of the brain (brain waves) using high sensitive recording
equipment attached to the scalp by fine electrodes. EEGs are used extensively in measuring the brain activity during
pertaining to internal hormonal secretions
the outer layer of the skin which is dead and filled with the protein keratin
outer layer of the frontal lobe
responsible for higher cognitive thought processes
is the chief source of energy for living organisms
the most frontal of the three major divisions of the brain
a brain structure in the temporal lobe; constitutes an important part of the limbic system; involved in learning and memory
human growth hormone
hormone secreted by the pituitary that stimulates bone growth
an increase in pain threshold
a symptom of narcolepsy; vivid dreams just before a person falls asleep accompanied by sleep paralysis
Location of the brain; involved in regulation of the autonomic nervous system, control of the anterior and posterior pituitary glands, and integration of species-typical behavior
the body system that protects the body against invading organisms and infections
restriction of physiological functions or processes
involves the removal or destruction of a portion of the brain of a laboratory animal; the functions that can no longer be performed are the ones that the region previously controlled
area of brain (hippocampus, cingulate gyrus, dentate gyrus, and amygdala) important in memory, emotion and autonomic responses.
a white blood cell
an euphoric state opposite of depression
chemical reactions in the body including catabolism and anabolism
an altered substance through metabolic processes
the central of three major divisions of the brain
cell division where the two daughters cells receive same number of chromosomes as the parent cell
acetylcholine receptor in the postganglionic parasympathetic neurons
a nerve cell; consisting of a cell body that contains a nucleus, short branching processes that carry electrical signals, and an axon that conducts nerve impulses away from the cell body
a chemical contained in synaptic vesicles in nerve endings that is release into the synaptic vesicles and stimulates another receptor
acetylcholine receptor in the autonomic ganglia and the neuromuscular junctions
a catecholamine neurohormone that acts in the sympathetic nervous system.
a neurotransmitter found in the brain and in the sympathetic division of the autonomic nervous system
sleep stages not occurring during REM sleep
a region in the prefrontal cortex
involves the transfer of electrons or hydrogen atoms from one atom or molecule to another
located in the pons where acetylcholinergic activity are involved in REM sleep
positron emission tomography (PET)
the use of a device that reveals the localization of a radioactive tracer in a living brain; shows activity level of various brain regions
phagocytic T lymphocytes
lymphocytes produced in the thymus that attack host cells that have been virally infected. They must actually touch or be close to the cell to effetely kill the infection
the medical science that deals with the chemical and physiological effects of drugs on the physiological processes in an organism
the study of biological function – how the body works
A discoid cell (3m diameter) found in large numbers in blood, important for blood coagulation and for
haemostasis by repairing breaches (small breaks) in the walls of blood vessels.
part of the midbrain
a molecule in which a more active molecule is built upon.
premenstrual dysphoric disorder
severe and debilitating premenstral syndrome
a class of molecules composed of large polypeptides, in which over a hundred amino acids are bonded together by peptide bonds
a drug that stimulants the central nervous system
REM sleep and
SWS sleep -
Sleep occurs in several stages over a rest period. When someone is falling asleep, then enter into the first stage and progress to the fourth (which are referred to as Slow Wave Sleep). Then they go back through stages 3 and 2 to enter REM sleep, where dreams commonly occur. The stages will fluctuate throughout the night as the graph represents.
SWS and REM have different wave cycles when measured on an EEG. SWS sleep usually has slow, infrequent waves of under 10 hz (cycles per second). As you move from stages 1 to 4, the hz values decrease from approximately 8 hz to 2 hz, respectively. REM waves are above 10 hz and have small wave amplitudes.
a nucleic acid that is important in gene regulation; made within the cell nucleus
Signal Detection Theory
a psychophysical theory in which the person's bias can effect the accuracy of determining whether a signal was perceived or not
skeletal muscle activity
movement of the body through the interaction of the bones and muscles of the body
short bursts of waves of 12-14 Hz that occur between two and five times a minute during stage 1-4 of sleep
stimulated by somatotropin when the cell is beginning to divide
learning to make a specific response automatically in the presence of a particular stimulus
the creation or build-up of a molecule from smaller parts
area of the brain located on the side below the cerebrum. Important areas for hearing and reception.
large portion of the diencephalon containing nuclei involving the projection of nerve pathways to the cortex and back down to its site of action
thematic apperception test
test where the subject is asked to make up a story about a series of pictures. The themes expressed are thought as significant themes in the subject's life
regulation of the body temperature.
EEG activity of 5-8 Hz that occurs during the early stages of REM sleep and slow-wave sleep
the rate at which something is being depleted and replaced
enzyme required to produce dopamine by converting L-tyrosine into L-dopa. L-dopa in the converted into dopamine by L-aromatic amino acid decarboxylase
a waste product found in the urine; the product of protein metabolism; formed in the liver
brain peptide that enhances REM sleep
system within the inner ear use to keep animals awake
anything pertaining to the internal cavities
waking seizures threshold
brain tissue containing the axons surrounded by myelin sheaths
control subject where their situation is dependent on the actions of the experimantal subjects
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