Neurophysiology Flashcards
Segments in Cervical Spine Vertebrae
Cervical Nerves (C1-C8)
Segments in Thoracic Spine Vertebrae
Thoracic Nerves (T1-T12)
Segments in Lumbar Spine Vertebrae
Lumbar Nerves (L1-L5)
Segments in Sacrum
Sacral Nerves (S1-S5)
It is the 31st pair of spinal nerves
Coccygeal
A subdivision of your peripheral nervous system, which is all of your nervous system except your brain and spinal cord (encompassing the skeletal muscle effectors and allowing the movement and control throughout one’s body)
Somatic nervous system
a component of the peripheral nervous system that regulates involuntary physiologic processes including heart rate, blood pressure, respiration, digestion, and sexual arousal.
Autonomic nervous system
It consists of all the nerve structures outside of the brain and spinal cord, which make up the CNS. It serves as a communication network that connects the CNS to the rest of the body
Peripheral nervous system (PNS)
Under autonomic nervous system (ANS), it is responsible for regulating involuntary physiological processes in the body, including those related to rest, digestion, and recovery.
Parasympathetic nervous system (PNS)
Under autonomic nervous system (ANS), it is responsible for activating the body’s “fight or flight” response, which prepares the body to respond to perceived threats or stressful situations.
Sympathetic nervous system (SNS)
Is diuresis caused by PNS or SNS action?
PNS
Is self-defense caused by PNS or SNS action?
SNS
Does having a dinner buffet involve PNS or SNS action?
PNS
Is the preparation of the body to either confront a threat or flee from it caused by PNS or SNS action?
SNS
It is the collection of neuronal bodies found in the voluntary and autonomic branches of the peripheral nervous system (PNS)
Ganglion
[SNS] Origin of preganglionic nerve: nuclei of spinal cord segments _____; _______ (thoracolumbar)
T1-T12; L1-L3
[PNS] Origin of preganglionic nerve: nuclei of cranial nerves II, VII, IX, and X; spinal cord segments ____ (craniosacral)
S2-S4
[SNS]
Length of preganglionic nerve axon:
Neurotransmitter in ganglion:
Receptor type in ganglion:
Length of postganglionic nerve axon:
Short
ACh
Nicotinic
Long
[PNS]
Length of preganglionic axon:
Neurotransmitter in ganglion:
Receptor type in ganglion:
Length of postganglionic nerve axon:
Long
ACh
Nicotinic
Short
[SNS]
Effector organs:
Neurotransmitter in effector organs:
Receptor types in effector organs:
smooth & cardiac muscles; glands
Norepinephrine (except sweat glands, which use ACh)
adrenoreceptors (a1, a2, b1 & b2)
[PNS]
Effector organs:
Neurotransmitter in effector organs:
Receptor types in effector organs:
smooth & cardiac muscles; glands
ACh
Muscarinic
Synapses between neurons are made in the ___________
autonomic ganglia