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MEDICAL TERMINOLOGY
CHAPTER 5 TEST
| Question | Answer |
|---|---|
| Autonomic Nervous System | The system that controls involuntary functions. |
| Axons | Sends electrical impulses and transmits signals to other cells. |
| Brainstem | The essential pathway that conducts impulses between the brain and the spinal cord. |
| Cell Body | Houses all of the microscopic structures that keep the cell energized and functioning. |
| Central Nervous System | Comprises the brain and the spinal cord. |
| Cerebellum | Sometimes called the “little brain”; responsible for posture, balance, and coordination. |
| Cerebrospinal Fluid | Continuously circulates and provides a cushion against injury from impact and sudden movement. |
| Cerebrum | Makes up the largest portion of the brain; 4 lobes: frontal, parietal, temporal, occipital. |
| Corpus Callosum | Divides the cerebrum into two hemispheres. |
| Cortex | Deep folds and shallow grooves on the surface of the cerebrum which increase its surface area. |
| Cranium | Hard bones of the skull that protect the brain. |
| Dendrites | Receives information and bring this information to the cell body. |
| Dermatomes | Areas of the skin that associated with specific spinal nerve roots. |
| Glia | Support cells that carry nutrients to the neurons. |
| Homeostasis | The state of dynamic equilibrium in the internal environment of the body. |
| Meninges | Three membranes that protect the brain and spinal cord. |
| Motor Impulses | Information from the brain that travels to the rest of the body. |
| Motor Nerves | Nerves that control body movement. |
| Myelin Sheath | Covers the axon in a special protective layer. |
| Myotomes | Groups of muscles associated with specific spinal nerve roots. |
| Neuron | A nerve cell. |
| Parasympathetic Nervous System | The system that dominates during nonstressful times. |
| Peripheral | Located outside of the CNS |
| Peripheral Nervous System | The system that includes nerves in the arms and legs. |
| Referred Pain | Pain that is felt at an area of the body away from the actual site of injury. |
| Sensory Impulses | Information from the rest of the body that travels to the brain. |
| Sensory Nerves | Gather information from the skin, the muscles, and the joints. |
| Spinal Cord | The pathway for sensory impulses going to the brain and motor impulses coming from the brain. |
| Sympathetic Nervous System | The system responsible for the physical changes of the fight-or flight response. |
| Inferior | toward or nearer to the feet |
| Posterior | toward or nearer to the back |
| Anterior | toward or nearer to the front |
| Pons | connects upper and lower part of the brain; serves as a message station; responsible for reflex actions. |
| derm/o | skin |
| my/o | muscle |