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pharm ch 13 vocab
| Question | Answer |
|---|---|
| Central Nervous System | The brain and spinal cord. |
| Peripheral Nervous System | The nervous system outside of the brain and spinal cord. |
| Afferent Nerves | A nerve that carries impulses toward the central nervous system (CNS). |
| Efferent Nerves | A nerve that carries impulses away from the central nervous system (CNS). |
| Motor Nervous System | Controls skeletal muscle contractions. |
| Autonomic Nervous System | The autonomic nervous system regulates key functions of the body including the activity of the heart muscle (see below), the smooth muscles (e.g., the muscles of the intestinal tract), and the glands. |
| Neuron | A nerve cell that sends and receives electrical signals over long distances within the body. |
| Synapse | The point of connection usually between two nerve cells |
| Neurotransmitters | A chemical that is released from a nerve cell which thereby transmits an impulse from a nerve cell to another nerve, muscle, organ, or... |
| Norepinephrine | A substance, both a hormone and neurotransmitter, secreted by the adrenal medulla and the nerve endings of the sympathetic nervous system to cause vasoconstriction and increases in heart rate, blood pressure, and the sugar level of the blood. |
| Acetylcholine | A white crystalline derivative of choline that is released at the ends of nerve fibers in the somatic and parasympathetic nervous systems and is involved in the transmission of nerve impulses in the body. |
| Chrolinergic Fibers | The nerve endings that liberate acetylcholine. |
| Adrenergic Fibers | Activated by or capable of releasing epinephrine or an epinephrinelike substance, especially in the sympathetic nervous system. Having physiological effects similar to those of epinephrine. |
| Cholinergic Agents | stimulated, activated, or transmitted by choline (acetylcholine); said of the sympathetic and parasympathetic nerve fibers that liberate acetylcholine at a synapse when a nerve impulse passes. an agent that produces such an effect. |
| Adrenergic Agents | activated by, characteristic of, or secreting epinephrine or related substances, particularly the sympathetic nerve fibers that liberate norepinephrine at a synapse when a nerve impulse passes. any agent that produces such an effect |
| Anticholinergic Agents | An agent that is antagonistic to the action of parasympathetic or other cholinergic nerve fibers. |
| Adrenergic Blocking Agents | Inhibit the adrenergic agents. |
| Catecholamines | a group of substances derived from tyrosine that act as hormones to stimulate cellular activity and carry nerve impulses through the body. |
| Alpha Receptor | in response to sympathomimetic stimuli |
| Beta Receptor | which block sympathomimetic activity |
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cmcaguilar
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