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23 Cards in this Set
- Front
- Back
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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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Peripheral Nervous System (PNS) |
Nerves branching out from the spinal cord. |
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Neurons |
The long, thin cells of nerve tissue along which messages travel to and from the brain. |
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Synapse |
The gap that exists between individual nerve cells. |
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Neurotransmitters |
The chemicals released by neurons, which determine the rate at which other neurons fire. |
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Somatic Nervous System (SNS) |
The part of the peripheral nervous system that controls voluntary movement of skeletal muscles. |
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Autonomic Nervous System (ANS) |
The part of the peripheral nervous system that controls internal biological functions. |
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Hindbrain |
A part of the brain located at the rear base of 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 integrates sensory information and relays it upward. |
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Forebrain |
A part of the brain that covers the brain's central core. |
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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 (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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Magnetic Resonance Imaging (MRI) |
An imaging technique used to study brain structure and activity. |
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Endocrine System |
A chemical communication system, using hormones, by which messages are sent through the bloodstream. |
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Hormones |
Chemical substances that carry messages through the body in blood. |
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Pituitary Gland |
The center of control of the endocrine system that secretes a large number of hormones. |
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Heredity |
The genetic transmission of characteristics from parents to their offspring. |
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Identical Twins |
Twins who come from one fertilized egg; twins having the same heredity. |
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Genes |
The basic building blocks of heredity. |
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Fraternal Twins |
Twins who come from two different eggs fertilized by two different sperm. |
