Domanda del libro di testo
Name the segments of the nephron distal to the renal corpuscle, and state the functions of each.
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Ch. 26 The Urinary System
Martini, Nath, Bartholomew12th EditionFundamentals of Anatomy & PhysiologyISBN: 9780137854011
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TOC.tableOfContents
- Ch. 1 An Introduction to Anatomy and Physiology25
- Ch. 2 The Chemical Level of Organization34
- Ch. 3 The Cellular Level of Organization29
- Ch. 4 The Tissue Level of Organization24
- Ch. 5 The Integumentary System17
- Ch. 6 Bones and Bone Structure33
- 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 Senses15
- Ch. 18 The Endocrine System21
- Ch. 19 Blood31
- Ch. 20 The Heart31
- Ch. 21 Blood Vessels and Circulation26
- Ch. 22 The Lymphatic System and Immunity25
- Ch. 23 The Respiratory System4
- Ch. 24 The Digestive System18
- Ch. 26 The Urinary System31
- Ch. 27 Fluids & Electrolytes30
- Ch. 28 The Reproductive System12
- Ch. 29 Development and Inheritance17
Martini, Nath, Bartholomew12th EditionFundamentals of Anatomy & PhysiologyISBN: 9780137854011Non è quello che usi tu?Cambia libro di testo
Capitolo 25, Problema 12
Trace the path of a drop of blood from its entry into the renal artery until its exit at a renal vein.
Guida verificata passo dopo passo1
Start by identifying the entry point of the blood: the renal artery, which carries oxygenated blood into the kidney from the abdominal aorta.
Next, trace the blood flow from the renal artery into smaller branches called segmental arteries, which further branch into interlobar arteries that run between the renal pyramids.
Follow the blood as it moves into the arcuate arteries, which arch over the base of the renal pyramids, and then into the interlobular arteries that extend into the cortex of the kidney.
From the interlobular arteries, the blood enters the afferent arterioles, which lead to the glomerulus—a network of capillaries where filtration occurs.
After filtration, blood exits the glomerulus via the efferent arteriole, then flows into the peritubular capillaries and vasa recta surrounding the nephron, eventually draining into interlobular veins, arcuate veins, interlobar veins, and finally into the renal vein, which carries the filtered blood away from the kidney back to the inferior vena cava.
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Concetti chiave
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Renal Blood Flow Pathway
This concept involves understanding the sequence of blood vessels through which blood travels in the kidney, starting from the renal artery, moving through smaller arteries and arterioles, reaching the glomerulus, and eventually exiting via the renal vein. It highlights the anatomical route essential for kidney function.
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Percorso guidato
4:40
Alternative Pathway
Glomerular Filtration
Glomerular filtration is the process where blood plasma is filtered through the glomerulus into Bowman's capsule, initiating urine formation. This step is crucial as it separates waste and excess substances from the blood while retaining cells and large proteins.
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3:15Glomerular Filtration Rate
Peritubular Capillaries and Venous Return
After filtration, blood flows through peritubular capillaries surrounding the nephron tubules, where reabsorption and secretion occur. The blood then collects into venules and veins, ultimately draining into the renal vein, completing the circulation through the kidney.
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Percorso guidato
4:36Introduction to Capillaries
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