Term
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Definition
| - connect the structures of the head and body |
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Term
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Definition
| - connect spinal cord to structures of neck, trunk, talk, and limbs |
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Term
| sensory or afferent axons |
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Definition
- from muscles and glands to CNS
- peripheral nerves |
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Term
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Definition
- rom CNS to muscles and glands
- Peripheral nerves, somatic vs. visceral |
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Term
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Definition
- controls involuntary activity, maintains homeostasis and responds to stress
- CNS and ANS components |
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Term
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Definition
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Term
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Definition
| - mass of neurons in the CNS |
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Term
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Definition
| - ganglion originating from the CNS and traveling to the autonomic ganglion |
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Term
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Definition
| - where the cell body of the second neuron in a visceral efferent system sits |
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Term
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Definition
| - axon leaving the autonomic ganglion and traveling to a target organ |
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Term
| Sympathetic division (thorocolumbar system) |
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Definition
| - releases norepinephrine and epinephrine to induce the body to rest and digest functions |
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Term
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Definition
- contain motor neurons
- units w/ dorsal root to form spinal nerve |
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Term
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Definition
- contain sensory neurons
- unites w/ ventral root to form spinal nerve |
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Term
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Definition
| - Communication between the ventral and branches of spinal nerves and the sympathetic trunk |
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Term
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Definition
| - runs craniocaudally lateral to the vertebral column, T1-L5 |
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Term
| sympathetic trunk ganglion |
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Definition
- where the sympathetic trunk ganglion contains cell bodies of postganglionic sympathetic axons
- ganglion where rami communicate meet the sympathetic trunk |
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Term
| Parasympathetic division (craniosacral system) |
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Definition
- releases acteylcholine to induce the body to fight and flight functions
- cranial nerves II, VII, X and S1-3 |
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Term
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Definition
- form plexuses around the main blood vessels of abdominal organs
- leave thoracic and lumbar portions of the sympathetic trunk |
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Term
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Definition
- fusion of caudal cervical ganglion and first two or three thoracic ganglia
- dorsal end of 1st intercostal space on lateral side of longus colli m. |
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Term
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Definition
- source of postganglionic axons for remaining cervical spinal nerves
- follows vertebral artery
- some nerves here course directly to the heart |
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Term
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Definition
| - passes around subclavian artery |
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Term
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Definition
| - junction of vagus nerve, sympathetic trunk, and ansa subclavia into the vagosympathetic trunk |
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Term
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Definition
- carries sympathetic responses to head and parasympathetic to thorax abdomen via vagus nerve
- in carotid sheath
- sympathetic and parasympathetic portions |
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Term
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Definition
- parasympathetic preganglionic axons course caudally down neck to thoracic and abdominal organs
- dorsal and ventral branches on both right and left side |
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Term
| - left recurrent laryngeal nerve |
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Definition
- branches to heart, trachea, laryngeal muscles, and esophagus
- leaves vagus nerve, wraps around ligamentum arteiosum parallels the esophagus and travels up to the larynx |
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Term
| right recurrent laryngeal nerve |
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Definition
- branches to heart, trachea, laryngeal muscles and esophagus
- leaves vagus nerve, curves dorsocranially around right subclavian artery, parallel to the trachea and travels to the larynx |
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Term
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Definition
- reunite on the esophagus
- Union of left and right brancehs |
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Term
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Definition
- reunite near the diaphragm , dorsal to the esophagus
-union of left and right dorsal branches. |
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