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MEDICAL TERMINOLOGY

CHAPTER 5 TEST

QuestionAnswer
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
Created by: cindymiller