Domanda del libro di testo
The glomerular filtration rate is regulated by all of the following, except
(a) Autoregulation
(b) Sympathetic neural control
(c) Cardiac output
(d) Angiotensin II
(e) The hormone ADH
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Ch. 26 The Urinary System
Martini, Nath, Bartholomew11th EditionFundamentals of Anatomy & PhysiologyISBN: 9780136874089
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TOC.tableOfContents
- Ch. 1 An Introduction to Anatomy and Physiology26
- Ch. 2 The Chemical Level of Organization34
- Ch. 3 The Cellular Level of Organization30
- Ch. 4 The Tissue Level of Organization24
- Ch. 5 The Integumentary System17
- Ch. 6 Bones and Bone Structure36
- Ch. 7 The Axial Skeleton11
- Ch. 8 The Appendicular Skeleton17
- Ch. 9 Joints13
- Ch. 10 Muscle Tissue12
- Ch. 11 The Muscular System28
- Ch. 12 Nervous Tissue18
- Ch. 13 The Spinal Cord, Spinal Nerves, and Spinal Reflexes22
- Ch. 14 The Brain and Cranial Nerves20
- Ch. 15 Sensory Pathways and the Somatic Nervous System17
- Ch. 16 The Autonomic Nervous System and Higher-Order Functions30
- Ch. 17 The Special Senses16
- Ch. 18 The Endocrine System20
- Ch. 19 Blood31
- Ch. 20 The Heart31
- Ch. 21 Blood Vessels and Circulation29
- Ch. 22 The Lymphatic System and Immunity31
- Ch. 23 The Respiratory System12
- Ch. 24 The Digestive System18
- Ch. 26 The Urinary System31
- Ch. 27 Fluids & Electrolytes32
- Ch. 28 The Reproductive System12
- Ch. 29 Development and Inheritance23
Martini, Nath, Bartholomew11th EditionFundamentals of Anatomy & PhysiologyISBN: 9780136874089Non è quello che usi tu?Cambia libro di testo
Capitolo 25, Problema 6
Changing the luminal diameters of the afferent and efferent arterioles to alter the GFR can be an example of
(a) Hormonal regulation
(b) Autonomic regulation
(c) Autoregulation
(d) All of these
Guida verificata passo dopo passo1
Step 1: Understand the key terms in the question. The afferent and efferent arterioles are small blood vessels that regulate blood flow into and out of the glomerulus in the kidney, which directly affects the Glomerular Filtration Rate (GFR).
Step 2: Define the types of regulation mentioned: (a) Hormonal regulation involves hormones like angiotensin II or atrial natriuretic peptide affecting arteriole diameter; (b) Autonomic regulation involves nervous system control, such as sympathetic nervous system input; (c) Autoregulation refers to the kidney's intrinsic ability to maintain a stable GFR by adjusting arteriole diameter without external signals.
Step 3: Recognize that changing the luminal diameter of afferent and efferent arterioles to alter GFR can occur through intrinsic mechanisms (autoregulation), hormonal signals, and autonomic nervous system input.
Step 4: Since all three mechanisms can influence arteriole diameter and thus GFR, consider that the correct answer might encompass all these regulatory methods.
Step 5: Conclude that the process described is an example of (d) All of these, because hormonal, autonomic, and autoregulatory mechanisms all contribute to changing arteriole diameter and regulating GFR.
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Concetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Glomerular Filtration Rate (GFR)
GFR is the rate at which blood is filtered through the glomeruli of the kidneys. It depends on the pressure within the glomerular capillaries, which is influenced by the diameter of afferent and efferent arterioles. Changes in these diameters directly affect filtration efficiency.
Video consigliato:
3:15
Glomerular Filtration Rate
Autoregulation of Kidney Function
Autoregulation refers to the kidney's intrinsic ability to maintain a stable GFR despite fluctuations in blood pressure. It involves adjusting the luminal diameter of afferent and efferent arterioles to control blood flow and filtration pressure without external signals.
Video consigliato:
1:00The Kidneys Example 1
Hormonal and Autonomic Regulation
Hormonal regulation involves substances like angiotensin II and atrial natriuretic peptide that alter arteriole diameter to influence GFR. Autonomic regulation uses sympathetic nervous system signals to constrict or dilate arterioles, affecting kidney blood flow and filtration.
Video consigliato:
13:06Review of Major Hormones
Pratica correlata
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The process of urine formation involves all of the following, except
(a) Filtration of plasma
(b) Reabsorption of water
(c) Reabsorption of certain solutes
(d) Secretion of wastes
(e) Secretion of excess lipoprotein and glucose molecules
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What are the primary functions of the urinary system?
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The distal convoluted tubule is an important site for
(a) Active secretion of ions
(b) Active secretion of acids and other materials
(c) Selective reabsorption of sodium ions from the tubular fluid
(d) All of these
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