Ch. 24 The Urinary System

Amerman3rd EditionHuman Anatomy & PhysiologyISBN: 9780138247201, 9780138247928, 9780138201814Not the one you use?Change textbook

Amerman 3rd Edition

Ch. 24 The Urinary System

Problem 3c

Chapter 24, Problem 3c

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
c. The first capillary bed of the kidneys is the peritubular capillaries, which are fed by the afferent arteriole and drained by the efferent arteriole.

Verified step by step guidance

Step 1: Understand the anatomy of the kidney's blood supply. The kidney has a unique blood flow system involving two capillary beds: the glomerulus and the peritubular capillaries. The glomerulus is the first capillary bed, and it is fed by the afferent arteriole and drained by the efferent arteriole.

Step 2: Analyze the statement provided. It claims that the first capillary bed of the kidneys is the peritubular capillaries, which are fed by the afferent arteriole and drained by the efferent arteriole.

Step 3: Identify the error in the statement. The peritubular capillaries are not the first capillary bed; they are the second. The first capillary bed is the glomerulus. Additionally, the peritubular capillaries are fed by the efferent arteriole, not the afferent arteriole.

Step 4: Correct the false statement. The corrected statement should read: 'The first capillary bed of the kidneys is the glomerulus, which is fed by the afferent arteriole and drained by the efferent arteriole.'

Step 5: Review the corrected statement to ensure it aligns with the anatomy and physiology of the kidney's blood supply, confirming its accuracy.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Capillary Beds in the Kidneys

The kidneys contain two main capillary beds: the glomerular capillaries and the peritubular capillaries. The glomerular capillaries are the first capillary bed, where filtration of blood occurs, while the peritubular capillaries surround the renal tubules and are involved in reabsorption and secretion.

Afferent and Efferent Arterioles

Afferent arterioles supply blood to the glomeruli, where filtration takes place, while efferent arterioles carry blood away from the glomeruli. This arrangement is crucial for regulating blood pressure and filtration rate in the kidneys.

True/False Statement Correction

In evaluating statements as true or false, it is essential to understand the underlying biological processes. If a statement is false, it should be corrected by providing accurate information, ensuring clarity and understanding of the physiological concepts involved.

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Related Practice

Textbook Question

Drugs that treat hypertension, or high blood pressure, have the following actions. Discuss the specific effect that each drug will have on the kidneys.

b. Blocking the receptor for angiotensin-II on blood vessels and in the renal tubule cells

Textbook Question

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

d. Filtrate flows from the renal corpuscle to the distal tubule, the nephron loop, the proximal tubule, and into the collecting system.

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Textbook Question

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

b. Internally, the kidneys consist of an outer renal medulla, a middle renal pelvis, and an inner renal cortex.

Textbook Question

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

a. The kidneys are retroperitoneal and covered by three layers of connective tissue.

Textbook Question

Cortical and juxtamedullary nephrons differ in the:

a. Lengths of their nephron loops

b. Structure of the capillaries surrounding them

c. Structure of their renal corpuscles

d. Both a and b are correct

e. Both b and c are correct

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Textbook Question

Describe the structure of the filtration membrane.

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Mark the following statements as true or false. If a statement is false, correct it to make a true statement.c. The first capillary bed of the kidneys is the peritubular capillaries, which are fed by the afferent arteriole and drained by the efferent arteriole.

Verified video answer for a similar problem:

Key Concepts

Capillary Beds in the Kidneys

Afferent and Efferent Arterioles

True/False Statement Correction

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
c. The first capillary bed of the kidneys is the peritubular capillaries, which are fed by the afferent arteriole and drained by the efferent arteriole.