Domanda del libro di testo
Which of the effects listed in response to question 9 would be reversed by parasympathetic activity?
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Ch. 14 The Autonomic Nervous System
Marieb, Hoehn11th EditionHuman Anatomy & PhysiologyISBN: 9780136874034
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TOC.tableOfContents
- Ch. 1 The Human Body: An Orientation24
- Ch. 2 Chemistry Comes Alive25
- Ch. 3 Cells: The Living Units21
- Ch. 4 Tissue: The Living Fabric20
- Ch. 5 The Integumentary System11
- Ch. 6 Bones and Skeletal Tissues19
- Ch. 7 The Skeleton14
- Ch. 8 Joints7
- Ch. 9 Muscles and Muscle Tissue26
- Ch. 10 The Muscular System26
- Ch. 11 Fundamentals of the Nervous System and Nervous Tissue19
- Ch. 12 The Central Nervous System26
- Ch. 13 The Peripheral Nervous System and Reflex Activity32
- Ch. 14 The Autonomic Nervous System19
- Ch. 15 The Special Senses26
- Ch. 16 The Endocrine System23
- Ch. 17 Blood25
- Ch. 18 The Cardiovascular System: The Heart24
- Ch. 19 The Cardiovascular System: Blood Vessels27
- Ch. 20 The Lymphatic System and Lymphoid Organs and Tissues14
- Ch. 21 The Immune System: Innate and Adaptive Body Defenses27
- Ch. 22 The Respiratory System21
- Ch. 23 The Digestive System31
- Ch. 24 Nutrition, Metabolism, and Energy Balance26
- Ch. 25 The Urinary System26
- Ch. 26 Fluid, Electrolyte, and Acid-Base Balance24
- Ch. 27 The Reproductive System24
- Ch. 28 Pregnancy and Human Development25
- Ch. 29 Heredity11
Marieb, Hoehn11th EditionHuman Anatomy & PhysiologyISBN: 9780136874034Non è quello che usi tu?Cambia libro di testo
Capitolo 14, Problema 11
Describe the meaning and importance of sympathetic tone and parasympathetic tone.
Guida verificata passo dopo passo1
Step 1: Define 'sympathetic tone' as the baseline level of activity in the sympathetic nervous system, which maintains a steady state of partial constriction in blood vessels and readiness of organs to respond to stress or changes in the environment.
Step 2: Explain 'parasympathetic tone' as the continuous, low-level activity of the parasympathetic nervous system that helps maintain homeostasis by promoting restful functions such as digestion, energy conservation, and slowing the heart rate.
Step 3: Discuss the importance of sympathetic tone in regulating blood pressure and blood flow by controlling the degree of vasoconstriction, which ensures tissues receive adequate oxygen and nutrients under varying conditions.
Step 4: Highlight the role of parasympathetic tone in maintaining normal organ function during restful states, such as promoting digestion and reducing heart rate, which conserves energy and supports recovery.
Step 5: Emphasize the balance between sympathetic and parasympathetic tones as crucial for maintaining autonomic nervous system homeostasis, allowing the body to adapt efficiently to stress and relaxation demands.
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Sympathetic Tone
Sympathetic tone refers to the baseline level of activity in the sympathetic nervous system, which controls the body's 'fight or flight' responses. It maintains functions like blood vessel constriction and heart rate regulation, ensuring readiness for stress or physical activity.
Video consigliato:
5:03
The Sympathetic Subway
Parasympathetic Tone
Parasympathetic tone is the ongoing activity of the parasympathetic nervous system, responsible for 'rest and digest' functions. It helps regulate processes such as slowing the heart rate, promoting digestion, and conserving energy during restful states.
Video consigliato:
1:35Parasympathetic Nervous System Example 1
Importance of Autonomic Tone Balance
The balance between sympathetic and parasympathetic tones is crucial for maintaining homeostasis. Proper autonomic tone ensures that the body can respond appropriately to stress while also recovering and conserving energy, supporting overall health and physiological stability.
Video consigliato:
1:50Somatic vs. Autonomic Nervous System
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A reflex that causes reciprocal activation of the antagonist muscle is the
a. Crossed-extensor
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