Term
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Definition
| Group of many nerve fibers traveling together in PNS |
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Term
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Definition
| large, unmyelinated nerve fibers bundle in CNS |
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Term
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Definition
| cluster of neuron cell bodies outside CNS |
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Term
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Definition
| cluster of neuron cell bodies in CNS |
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Term
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Definition
| cell bodies and unmyelinated portions of nerve fibers which have gray appearance |
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Term
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Definition
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Term
| 5 reticular formation centers |
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Definition
| CV, respiratory, cough, sneeze, vomiting |
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Term
| Structures that the reticular formation is found? |
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Definition
| Brainstem (medulla, pons, midbrain) |
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Term
| Major cerebral commissure |
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Definition
| Bundle of nerve fibers linking right and left halves of the brain. |
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Term
| Nerve pathways (tracts) in the central nervous system named? |
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Definition
| According to origin and termination |
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Term
| What controls the entry of many solutes into the brain from the blood? |
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Definition
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Term
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Definition
| one of the 86 peripheral nerves (43 pairs) that join spinal cord |
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Term
| Info carried by spinal nerves? |
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Definition
| motor (efferent) and sensory (afferent) fibers |
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Term
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Definition
| Both dorsal and ventral roots where it enters the regions of the spinal cord |
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Term
| Somatic/voluntary nervous system functions |
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Definition
| consists of a single neuron between CNS and skeletal muscle cells; innervates skeletal muscle and can lead only to muscle excitation |
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Term
| Autonomic nervous systems |
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Definition
| two-neuron chain (connected by synapses) between CNS and effector organ; innervates smooth/cardiac muslce, gland and GI neurons, can be excitatory or inhibitory |
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Term
| Preganglionic neurotransmitter release |
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Definition
sympathetic: acetlycholine
parasymapthetic: acetylcholine |
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Term
| Postganglionic neurotransmitter release |
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Definition
sympathetic: norepinephrine/epinephrine
parasympathetic: acetylcholine |
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Term
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Definition
Sympathetic synapse near or at organ
Long preganglionic and short postganglionic |
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Term
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Definition
Chain ganglia, synapse near spinal cord
Long postganglionic |
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Term
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Definition
| On postganglionic neurons in the autonomic ganglia. At neuromuscular junctions of skeletal muscle, on some CNS nuerons |
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Term
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Definition
| On smoothe muscle, on cardiac muscle, on gland cells, on some CNS neurons, on some neurons of autonomic ganglia |
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Term
| Receptors for norepinephrine/epinephrine |
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Definition
| On smooth muscle, cardiac muscle, gland cells, some CNS neurons |
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Term
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Definition
| Nictonic neural respond to acetylcholine |
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Term
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Definition
| Nictotinic muscular respond to acetylcholine |
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Term
| Location of Nn and Nm receptors |
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Definition
| Found on postganglionic neurons in autonomic ganglia, at neuromuscular junctions of skeletal muscle |
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Term
| Chemical structure of Ach |
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Definition
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Term
| Chemical structure norepinephrine, epinephrine, and dopamine |
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Definition
| All have aromatic rings and alcohol attached to ring. Dopamine does not have an alcohol off the carbon chain coming off the ring. Epinephrine has an extra methyl off the nitrogen. |
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Term
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Definition
| Metab/degradation by enzyme action |
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Term
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Definition
| reuptake or metabolism by COMT or NAO, reuptake is used when difficult to make |
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Term
| Biosythesis of acetylcholine |
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Definition
| Synthesized from choline and acetyl coenzyme A (choline acetylase) activation of enzyme acetylcholinesterase degrades |
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Term
| What enzymes catalyze biosynthesis of acetylcholine |
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Definition
| It is synthesized from choline and acetyl coenzyme A in cytoplasm of synaptic terminals and stored in synaptic vesicles, concentrations builds up until acetylcholinesterase stops process |
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