PSL 310 Motor PNS
Across
- 4. this structure especially influences activity of the ANS at the level of the brain stem.
- 7. this nervous system allows for actions like walking, talking, breathing, dancing.
- 8. this pharmacological agent competes with acetylcholine in binding to receptors
- 10. the NMJ of skeletal muscle fibers is always a(n) _________ synapse.
- 11. this type of fiber of the ANS synapses with an effector tissue.
- 14. another term for the sympathetic division of the ANS
- 15. this corticospinal tract crosses in the spinal cord
- 17. this corticospinal tract crosses in the brainstem
- 19. autoimmune disease that ultimately decreases the amount of Ach that can bind to receptors in the NMJ
Down
- 1. anatomic structures in the hands and ______ have many more motor neurons in the motor homunculus compared to structures like the wrist and elbow.
- 2. many somatic motorneurons involved in posture, balance, and breathing are under this type of control
- 3. lesions in these motor neurons result in symptoms like spasticity and hyperreflexia
- 5. these motor neurons receive converging inputs numerous different upper motor neurons
- 6. the neurotransmitter released at the NMJ
- 8. another term for the parasympathetic division of the ANS
- 9. a collection of postganglionic sympathetic cell bodies, essentially neuroendocrine cells
- 11. rest and digest functions are often (but not ALWAYS) associated with the activation of this nervous system
- 12. the autonomic nervous system innervates cardiac cells, smooth muscle, fat cells, and _______.
- 13. the autonomic nervous system is composed of motor neurons arranged in a two-neuron chain pattern with an autonomic ________.
- 16. the supplemental motor area, premotor cortex, and prefrontal association cortex all transmit information to this cortex
- 18. this type of fiber of the ANS originates in the CNS
- 19. one motor neuron plus all skeletal muscle fibers it innervates make up a _________.
- 20. the fight or flight response is often (but not ALWAYS) a result of the activation of this nervous system
- 21. NEJ synapses of the ANS can either be excitatory or _________.