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Ch. 24 The Urinary System
Amerman- Human Anatomy & Physiology 3e
Amerman3rd EditionHuman Anatomy & PhysiologyISBN: 9780138247201, 9780138247928, 9780138201814Not the one you use?Change textbook
All textbooksAmerman 3rd EditionCh. 24 The Urinary SystemProblem 3a
Chapter 24, Problem 3a

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.

Verified step by step guidance
1
Understand the term 'retroperitoneal': This means that the kidneys are located behind the peritoneum, the membrane lining the abdominal cavity. This is a true anatomical fact about the kidneys.
Review the connective tissue layers surrounding the kidneys: The kidneys are indeed covered by three layers of connective tissue. These layers are the renal fascia (outermost layer), the adipose capsule (middle layer), and the renal capsule (innermost layer).
Evaluate the first part of the statement: 'The kidneys are retroperitoneal.' This is true based on the anatomical location of the kidneys.
Evaluate the second part of the statement: 'The kidneys are covered by three layers of connective tissue.' This is also true based on the structure of the kidney's protective layers.
Conclude the analysis: Since both parts of the statement are accurate, the statement is true and does not require correction.

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Key Concepts

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

Retroperitoneal Organs

Retroperitoneal organs are those located behind the peritoneum, the lining of the abdominal cavity. The kidneys are classified as retroperitoneal because they lie outside the peritoneal cavity, which allows them to be positioned against the posterior abdominal wall. This anatomical positioning is significant for understanding their relationships with surrounding structures.
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Connective Tissue Layers

The kidneys are protected by three layers of connective tissue: the renal fascia, perirenal fat capsule, and fibrous capsule. The renal fascia is a layer of connective tissue that anchors the kidneys to surrounding structures, while the perirenal fat capsule provides cushioning and insulation. The fibrous capsule is a tough outer layer that directly encases the kidney, offering additional protection.
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Anatomical Positioning of the Kidneys

Understanding the anatomical positioning of the kidneys is crucial for recognizing their function and relation to other organs. The kidneys are located at the level of the T12 to L3 vertebrae, with the right kidney typically positioned slightly lower than the left due to the presence of the liver. This positioning is important for surgical approaches and understanding potential pathologies.
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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

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Textbook Question

Mr. Yao is a patient with kidney disease who presents to your clinic for monitoring. You notice on his chart that his GFR was estimated through inulin administration to be about 35 ml/min. What does this tell you about the health of his kidneys? Mr. Yao is taking a medication that is normally excreted from the body in the urine. You order blood work and find that the concentration of this medication in his plasma is much higher than normal. How does his decreased GFR explain the elevated level of medication in his plasma?

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Textbook Question

Explain how each of the drugs in question 1 from this section would lower blood pressure.

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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.

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.

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.

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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.

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