Textbook Question
Which ANS fibers release acetylcholine? Which release norepinephrine?
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Ch. 14 The Autonomic Nervous System
Marieb, Hoehn7th EditionHuman Anatomy & PhysiologyISBN: 9780805359091
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Table of contents
- Ch. 1 The Human Body: An Orientation24
- Ch. 2 Chemistry Comes Alive25
- Ch. 3 Cells: The Living Units24
- Ch. 4 Tissue: The Living Fabric19
- Ch. 5 The Integumentary System10
- Ch. 6 Bones and Skeletal Tissues19
- Ch. 7 The Skeleton11
- Ch. 8 Joints7
- Ch. 9 Muscles and Muscle Tissue26
- Ch. 10 The Muscular System26
- Ch. 11 Fundamentals of the Nervous System and Nervous Tissue23
- Ch. 12 The Central Nervous System26
- Ch. 13 The Peripheral Nervous System and Reflex Activity28
- Ch. 14 The Autonomic Nervous System18
- Ch. 16 The Endocrine System26
- Ch. 17 Blood27
- Ch. 18 The Cardiovascular System: The Heart22
- Ch. 19 The Cardiovascular System: Blood Vessels27
- Ch. 20 The Lymphatic System and Lymphoid Organs and Tissues16
- Ch. 21 The Immune System: Innate and Adaptive Body Defenses29
- Ch. 22 The Respiratory System20
- Ch. 23 The Digestive System30
- Ch. 24 Nutrition, Metabolism, and Energy Balance26
- Ch. 25 The Urinary System25
- Ch. 26 Fluid, Electrolyte, and Acid-Base Balance24
- Ch. 27 The Reproductive System23
Marieb, Hoehn7th EditionHuman Anatomy & PhysiologyISBN: 9780805359091Not the one you use?Change textbook
Chapter 14, Problem 4
Collateral sympathetic ganglia are involved with innervating
a. abdominal organs
b. thoracic organs
c. head
d. arrector pili
e. all of these
Verified step by step guidance1
Step 1: Understand the role of collateral sympathetic ganglia. These ganglia are part of the sympathetic nervous system and are located anterior to the vertebral column, unlike the paravertebral ganglia which lie alongside the vertebral column.
Step 2: Recall that collateral ganglia primarily innervate organs in the abdominal and pelvic regions, providing sympathetic input to these areas.
Step 3: Review the options: (a) abdominal organs, (b) thoracic organs, (c) head, (d) arrector pili muscles, and (e) all of these. Consider which organs or structures each type of ganglia typically innervates.
Step 4: Recognize that thoracic organs and head structures are generally innervated by paravertebral ganglia or other specific ganglia, not collateral ganglia. Arrector pili muscles are innervated by postganglionic fibers from paravertebral ganglia.
Step 5: Conclude that collateral sympathetic ganglia are specifically involved with innervating abdominal organs, making option (a) the correct choice.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Collateral Sympathetic Ganglia
Collateral sympathetic ganglia are clusters of nerve cell bodies located anterior to the vertebral column. They differ from paravertebral ganglia and primarily innervate organs in the abdominal and pelvic regions by sending postganglionic fibers to these targets.
Recommended video:
1:23
Sympathetic Nervous System Example 5
Sympathetic Innervation of Abdominal Organs
Sympathetic nerves from collateral ganglia regulate functions of abdominal organs such as the stomach, intestines, liver, and kidneys. These ganglia modulate activities like blood flow, digestion, and secretion through autonomic control.
Recommended video:
3:09Pathways of Sympathetic Innervation
Distinction Between Sympathetic Targets
Different sympathetic ganglia innervate specific body regions: paravertebral ganglia mainly serve thoracic organs and structures like arrector pili muscles, while collateral ganglia target abdominal and pelvic organs. Understanding this helps identify which ganglia control which organs.
Recommended video:
2:50Receptors at Target Organs
Related Practice
Textbook Question
The white rami communicantes contain what kind of fibers?
a. Preganglionic parasympathetic
b. Postganglionic parasympathetic
c. Preganglionic sympathetic
d. Postganglionic sympathetic
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Textbook Question
Relate each of the following terms or phrases to either the sympathetic (S) or parasympathetic (P) division of the autonomic nervous system:
______ (7) Generally short-duration action
______ (8) Increases heart rate and blood pressure
______ (9) Increases gastric motility and secretion of lacrimal, salivary, and digestive juices
______ (10) Innervates blood vessels
______ (11) Most active when you are relaxing in a hammock
______ (12) Active when you are running in the Boston Marathon
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Textbook Question
Where are the cell bodies of visceral sensory neurons?
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Textbook Question
Briefly explain why the following terms are sometimes used to refer to the autonomic nervous system: involuntary nervous system and emotional-visceral system.
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Textbook Question
Relate each of the following terms or phrases to either the sympathetic (S) or parasympathetic (P) division of the autonomic nervous system:
______ (1) Short preganglionic, long postganglionic fibers
______ (2) Intramural ganglia
______ (3) Craniosacral part
______ (4) Adrenergic fibers
______ (5) Cervical ganglia
______ (6) Otic and ciliary ganglia
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