Domanda del libro di testo
________ receptors are located on parasympathetic postganglionic neurons, and________ receptors are located on parasympathetic target cells.
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Ch. 14 The Autonomic Nervous System and Homeostasis
Amerman2nd EditionHuman Anatomy & PhysiologyISBN: 9780136873822
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TOC.tableOfContents
- Ch. 1 Introduction to Anatomy and Physiology26
- Ch. 2 The Chemistry of Life38
- Ch. 3 The Cell55
- Ch. 4 Histology47
- Ch. 5 The Integumentary System30
- Ch. 6 Bones and Bone Tissue36
- Ch. 7 The Skeletal System40
- Ch. 8 Articulations19
- Ch. 9 The Muscular System36
- Ch. 10 Muscle Tissue and Physiology29
- Ch. 11 Introduction to the Nervous System and Nervous Tissue28
- Ch. 12 The Central Nervous System42
- Ch. 13 The Peripheral Nervous System41
- Ch. 14 The Autonomic Nervous System and Homeostasis31
- Ch. 15 The Special Senses39
- Ch. 16 The Endocrine System42
- Ch. 17 The Cardiovascular System I: The Heart30
- Ch. 18 The Cardiovascular System II: The Blood Vessels43
- Ch. 19 Blood32
- Ch. 20 The Lymphatic System and Immunity45
- Ch. 21 The Respiratory System27
- Ch. 22 The Digestive System27
- Ch. 23 Metabolism and Nutrition7
- Ch. 24 The Urinary System39
- Ch. 25 Fluid, Electrolyte, and Acid-Base Homeostasis39
- Ch. 26 The Reproductive System10
- Ch. 27 Development and Heredity5
Amerman2nd EditionHuman Anatomy & PhysiologyISBN: 9780136873822Non è quello che usi tu?Cambia libro di testo
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Amerman 2nd EditionCh. 14 The Autonomic Nervous System and HomeostasisProblema 9c
Amerman 2nd EditionCh. 14 The Autonomic Nervous System and HomeostasisProblema 9cCapitolo 14, Problema 9c
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
c. The parasympathetic nervous system releases acetylcholine onto all its synapses.
Guida verificata passo dopo passo1
Step 1: Understand the role of the parasympathetic nervous system (PNS). The PNS is part of the autonomic nervous system responsible for 'rest and digest' functions, such as lowering heart rate and promoting digestion.
Step 2: Recall the neurotransmitter used by the parasympathetic nervous system. The PNS primarily uses acetylcholine (ACh) as its neurotransmitter at both preganglionic and postganglionic synapses.
Step 3: Analyze the statement provided. The statement claims that the parasympathetic nervous system releases acetylcholine onto all its synapses. This is true because acetylcholine is released at both the synapse between the preganglionic and postganglionic neurons, and at the synapse between the postganglionic neuron and the target tissue.
Step 4: If the statement were false, identify the correction. For example, if the statement incorrectly mentioned another neurotransmitter like norepinephrine, the correction would be to specify that acetylcholine is the neurotransmitter used by the parasympathetic nervous system.
Step 5: Confirm the accuracy of the statement based on your understanding of the parasympathetic nervous system and its neurotransmitter usage. In this case, the statement is true and does not require correction.
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Parasympathetic Nervous System
The parasympathetic nervous system is a component of the autonomic nervous system responsible for promoting 'rest and digest' functions. It conserves energy by slowing down the heart rate and increasing intestinal and gland activity. Understanding its role is crucial for evaluating statements about its neurotransmitter actions.
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Function of the Parasympathetic Nervous System
Acetylcholine
Acetylcholine is a neurotransmitter that plays a key role in transmitting signals in both the central and peripheral nervous systems. In the context of the parasympathetic nervous system, it is primarily released at synapses to facilitate communication between neurons and target organs. Recognizing its specific functions helps clarify the accuracy of statements regarding synaptic transmission.
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Synaptic Transmission
Synaptic transmission refers to the process by which neurotransmitters are released from one neuron and bind to receptors on another, allowing for communication between nerve cells. This process is essential for understanding how signals are propagated in the nervous system, including the specific actions of the parasympathetic nervous system and the role of acetylcholine in this context.
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Domanda del libro di testo
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
b. Sympathetic stimulation increases sweat secretion.
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Domanda del libro di testo
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
d. Sympathetic tone controls the resting rate of the heart.
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Domanda del libro di testo
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
a. The parasympathetic nervous system generally decreases the secretion from digestive glands.
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Domanda del libro di testo
Mark each of the following as an effect of the sympathetic nervous system or the parasympathetic nervous system.
a. ________ Bronchodilation
b.________ Bronchoconstriction
c. ________ Constriction of pupil
d. ________ Vasoconstriction of blood vessels serving organs of digestive, urinary, and integumentary systems
e. ________ Increased metabolic rate
f. ________ Dilation of pupil
g.________ Contraction of smooth muscle of digestive tract
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Domanda del libro di testo
Parasympathetic ganglia are typically:
a. Located along the spinal cord
b. Located near their target cells
c. Located within the central nervous system
d. Parasympathetic neurons do not synapse in ganglia
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