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23 Cards in this Set
- Front
- Back
Central nervous system (CNS) |
The brain and spinal cord |
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Spinal cord |
Nerves that run up and down the length of the back and transmit most messages between the body and brain |
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Midbrain |
A small part of the brain above the pons that arouses the brain, integrates sensory information, and relays it upward |
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Neurons |
The long, thin cells of nerve tissue asking which message travel to and from the brain |
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Neurotransmitters |
The chemicals released by neurons, which determine the rate at which other neurons fire |
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Hormones |
Chemical substances that carry messages through the body in blood |
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Identical twins |
Twins who come from one fertilized egg; twins having the same heredity |
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Hindbrain |
A part of the brain located at the rear base is the skull that is involved in the basic processes of life |
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Midbrain |
A small part of the brain above the pons that arouses the brain, integrates sensory information, and relays it upward |
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Forebrain |
A part of the brain that covers the brain's central core, responsible for sensory and motor control and thinking and language |
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Lobes |
The different regions into which the cerebral cortex is divided |
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Electroencephalograph (EEG) |
A machine used to record the electrical activity of large portions of the brain |
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Computerized axial tomography (CT)(CAT) |
An imaging technique used to study the brain to pinpoint injuries and brain deterioration |
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Positron emission tomography (PET) |
An imaging technique used to see which brain areas are being activated while performing tasks |
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Heredity |
The genetic transmission of characteristics from parents to their offspring |
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Endocrine system |
A chemical communication system, using hormones, by which messages are sent through the bloodstream |
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Thyroid gland |
Produces thyroxine; stimulates certain chemical reactions that are important for all tissues of the body |
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Adrenal glands |
Release epinephrine and norepinephrine; heartbeat and breathing to increase and emotions such as fear or anxiety |
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Cortical steroids |
Help muscles develop and cause the liver to release stored sugar for emergencies |
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Testes |
Produce testosterone; physical development of males, decide the sex of a fetus |
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Genes |
The basic building blocks of heredity |
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Premenstrual syndrome (PMS) |
Fatigue, irritability, and depression |
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Limbic system |
Regulate emotions and motivation |