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44 Cards in this Set
- Front
- Back
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What does ANS stand for? |
Autonomic Nervous System |
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What is other name for ANS system? |
Involuntary Nervous System |
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The ANS is broken into what two subdivisions? |
1. Sympathetic 2. Parasympathetic |
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The subdivisions of the PNS innervates? |
1. Smooth Muscle 2. Cardiac Muscle 3. Glandular Muscle |
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The PNS is controlled by? |
The hypothalamus |
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Does the sympathetic and parasympathetic system work all the time? |
YES both work all the time |
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Sympathetic System acts in preparing for? |
"Fight or Flight" |
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Parasympathetic System is more active in? |
Less stressful times |
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Which system is known as the Thoraco- Lumbar? |
The Sympathetic System |
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What is Thoraco-Lumbar System? |
Nerves originate from spinal cord in thoracic lumbar regions |
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Which is system is also known as Cranio-Sacral System? |
Parasympathetic System |
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What is Cranio-Sacral? |
- nerves originate from brain and sacrum |
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How long is Sympathetic System's Preganglionic neuron ? Postganglionic neuron? |
Preganglionic: is short and terminates in chain ganglia Postganglionic: comparetively long |
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How long is Parasympathetic System's Preganglionic neuron? Postganglionic neuron? |
Preganglionic = long neuron and may terminate in a ganglion near organ innervated Postganglionic = Short |
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Which system is adrenergic? |
The Sympathetic System |
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Which system is entirely cholinergic? |
The Parasympathetic System |
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In the Sympathetic System: - Synaptic Vesicles at the ganglia contain? - Neuromuscular junction vesicle contains? |
- Synaptic Vesicles at the ganglia contain: Acetylcholine - Neuromuscular junction vesicles contain: Norepinephrine |
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In the Parasympathetic System: - Synaptic Vesicles within ganglia and neuromuscular junctions all contain? |
All contain Acetylcholine |
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What is a nerve? |
Collection of neurons |
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What are sensory nerves? |
AFFERENT |
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What are motor nerves? |
EFFERENT |
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Nerves that are both sensory and motor are called? |
MIXED NERVES |
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What is a Ganglion? |
Cluster of neural cell bodies in the PNS |
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What is a Nucleus? |
Cluster of neural cell bodies in the CNS |
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Most nerves in the human body are? |
MIXED NERVES |
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What are the 3 types of neurons? |
1. Multipolar 2. Bipolar 3. Unipolar |
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Which neuron is the most common type? |
Multipolar Neuron |
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Which neuron is found in the eye and ears? |
Bipolar Neuron |
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What is unipolar neuron? |
sensory cells of skin |
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How many spinal nerves are in the body? |
31 pairs |
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How many pairs are found in the Cervical Region? |
8 pairs |
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How many pairs are found in the Thoracic Region? |
12 pairs |
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How many pairs are found in the Lumbar
Region? |
5 pairs |
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How many pairs are found in the
Sacral Region? |
5 pairs |
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How many pairs are found in the coccygeal?
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1 pair |
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All spinal nerves , are what kind of nerves? |
MIXED NERVES ( Afferent and Efferent Pathway) |
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All spinal nerves are part of what system only? |
THE PNS SYSTEM |
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Spinal nerves may contain how many pathways? |
May contain one or more pathways |
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What pathways may they contain? |
1. Afferent Sensory Pathway 2. Efferent Motor Pathway 3. Sympathetic Preganglionic Pathway 4. Parasympathetic Preganglionic Pathway 5. Sympathetic Afferent Pathway |
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What is Afferent Sensory Pathway? |
Incoming |
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What is Efferent Motor Pathway? |
Outgoing |
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What is sympathetic preganglionic pathway? |
outgoing |
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What is parasympathetic preganglionic pathway? |
outgoing |
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What is sympathetic afferent pathway? |
Incoming (sensory input from internal organs) |
