24.2 Gross Anatomy of the Kidney
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Questions and Answers

What is the primary function of the fibrous capsule?

  • To maintain the kidney's shape and protect it from trauma and pathogens (correct)
  • To anchor the kidney to surrounding structures
  • To facilitate the movement of urine from the kidney to the bladder
  • To provide cushioning for the kidney

What is the primary function of the perinephric fat?

  • To facilitate the movement of urine from the kidney to the bladder
  • To provide cushioning and stabilization for the kidney (correct)
  • To anchor the kidney to surrounding structures
  • To maintain the kidney's shape and protect it from trauma and pathogens

What is the primary function of the renal fascia?

  • To facilitate the movement of urine from the kidney to the bladder
  • To maintain the kidney's shape and protect it from trauma and pathogens
  • To provide cushioning and stabilization for the kidney
  • To anchor the kidney to surrounding structures (correct)

What is the primary function of the paranephric fat?

<p>To provide cushioning and stabilization for the kidney (C)</p> Signup and view all the answers

What condition can result from the loss of adipose connective tissue in very thin elderly individuals or individuals with anorexia nervosa?

<p>Renal ptosis (C)</p> Signup and view all the answers

What condition can result from renal ptosis?

<p>Hydronephrosis (C)</p> Signup and view all the answers

Which of the following is the most common anatomic variation of the kidney?

<p>Horseshoe kidney (C)</p> Signup and view all the answers

What is the outcome of bilateral renal agenesis?

<p>Invariably fatal (D)</p> Signup and view all the answers

What is the cause of a pelvic kidney?

<p>Failure of the developing kidney to migrate from the pelvic cavity to the abdominal cavity (C)</p> Signup and view all the answers

What is the significance of supernumerary kidneys?

<p>They are rare and usually have no clinical significance (B)</p> Signup and view all the answers

What is the purpose of the autonomic innervation of the kidney?

<p>To regulate the function of the kidney (B)</p> Signup and view all the answers

What is the most common way in which individuals discover anatomic variations in their kidneys?

<p>When they have a health issue unrelated to the kidneys (D)</p> Signup and view all the answers

What is the approximate length of each kidney?

<p>12 centimeters (4.7 inches) (C)</p> Signup and view all the answers

What is the shape of the kidneys?

<p>Bean-shaped (B)</p> Signup and view all the answers

What is the approximate weight of each kidney?

<p>100 grams (B)</p> Signup and view all the answers

What is the concave medial border of the kidney called?

<p>Hilum (B)</p> Signup and view all the answers

Where are the kidneys located in relation to the abdominal wall?

<p>Posterior to the abdominal wall (D)</p> Signup and view all the answers

What structure rests on the superior aspect of each kidney?

<p>Adrenal gland (B)</p> Signup and view all the answers

Which of the following statements about the position of the kidneys is correct?

<p>The left kidney is positioned higher than the right kidney. (D)</p> Signup and view all the answers

Which of the following statements about the protection of the kidneys is true?

<p>Both kidneys are partially protected by the rib cage. (C)</p> Signup and view all the answers

What is the term used to describe the position of the kidneys relative to the parietal peritoneum?

<p>Retroperitoneal (A)</p> Signup and view all the answers

Which of the following tissue layers is directly adhered to the external surface of the kidney?

<p>Fibrous capsule (C)</p> Signup and view all the answers

Which of the following tissue layers is the outermost layer surrounding the kidney?

<p>Paranephric fat (D)</p> Signup and view all the answers

Which of the following views is typically used in computed tomography (CT) scans to visualize the kidneys?

<p>Inferior cross-sectional view (C)</p> Signup and view all the answers

What is the term for the buildup of urine in the kidney and resulting swelling?

<p>Hydronephrosis (B)</p> Signup and view all the answers

What may occur if the cause of hydronephrosis is not treated?

<p>Renal failure (A)</p> Signup and view all the answers

What is the name of the fibrous capsule that directly adheres to the kidney, and what are its functions?

<p>Renal capsule; protects the kidney and holds it in place (B)</p> Signup and view all the answers

What are the two distinct regions of the kidney's parenchyma?

<p>Renal cortex and renal medulla (D)</p> Signup and view all the answers

What is the relationship among minor calyces, major calyces, and the renal pelvis?

<p>Minor calyces drain into major calyces, which drain into the renal pelvis (C)</p> Signup and view all the answers

What is the term used to describe the wide base of a renal pyramid where it meets the cortex?

<p>Corticomedullary junction (B)</p> Signup and view all the answers

What is the approximate length of each kidney?

<p>12 centimeters (4.7 inches) (A)</p> Signup and view all the answers

What is the concave medial border of the kidney called?

<p>Hilum (B)</p> Signup and view all the answers

What structure rests on the superior aspect of each kidney?

<p>Adrenal gland (B)</p> Signup and view all the answers

What is the term used to describe the position of the kidneys relative to the parietal peritoneum?

<p>Retroperitoneal (D)</p> Signup and view all the answers

What is the shape of the kidneys?

<p>Bean-shaped (B)</p> Signup and view all the answers

Which of the following tissue layers is the outermost layer surrounding the kidney?

<p>Renal fascia (C)</p> Signup and view all the answers

Where are the kidneys positioned in relation to the parietal peritoneum?

<p>Posterior to the parietal peritoneum (C)</p> Signup and view all the answers

What is the primary function of the fibrous capsule?

<p>Directly adhere to the external surface of the kidney (B)</p> Signup and view all the answers

Which layer surrounds the kidney immediately after the fibrous capsule from innermost to outermost?

<p>Perinephric fat (C)</p> Signup and view all the answers

What makes the kidneys vulnerable to forceful blows to the back?

<p>Partial protection by the rib cage (D)</p> Signup and view all the answers

Where is the right kidney located in relation to the left kidney?

<p>Inferior (A)</p> Signup and view all the answers

Which tissue layer is closest to the kidney's external surface?

<p>Renal fascia (C)</p> Signup and view all the answers

What is the medical term for the medially directed apex of the renal pyramid?

<p>Renal papilla (D)</p> Signup and view all the answers

Which renal structure serves as the urine drainage area within the kidney?

<p>Renal pelvis (C)</p> Signup and view all the answers

What is the result of renal agenesis in which one kidney fails to develop?

<p>Unilateral renal agenesis (A)</p> Signup and view all the answers

Which of the following structures merges with the ureter at the medial edge of the kidney?

<p>Renal pelvis (D)</p> Signup and view all the answers

What do several minor calyces merge to form within the kidney?

<p>Major calyx (A)</p> Signup and view all the answers

Where are the renal arteries, renal veins, and lymph vessels housed within the kidney?

<p>Renal sinus (A)</p> Signup and view all the answers

What is the outcome of unilateral renal agenesis?

<p>It is often asymptomatic (B)</p> Signup and view all the answers

Which anatomic variation of the kidney is fairly common and occurs in about 1 per 600 births?

<p>Horseshoe kidney (B)</p> Signup and view all the answers

What is a pelvic kidney?

<p>A kidney that fails to migrate from the pelvic cavity (B)</p> Signup and view all the answers

What characterizes supernumerary kidneys?

<p>They have no clinical significance (B)</p> Signup and view all the answers

What occurs when the inferior parts of the left and right kidneys fuse as they ascend into the abdominal cavity?

<p>Horseshoe kidney development (C)</p> Signup and view all the answers

What would an individual typically discover when seeing a physician regarding an unrelated health issue?

<p>Anatomic variations in kidney structure or number (A)</p> Signup and view all the answers

What are the two distinct regions of the kidney's parenchyma?

<p>Renal cortex and renal medulla (D)</p> Signup and view all the answers

What is the structure that subdivides the renal medulla into renal pyramids?

<p>Renal columns (D)</p> Signup and view all the answers

Where does the corticomedullary junction occur in the kidney?

<p>Between the renal cortex and renal medulla (C)</p> Signup and view all the answers

What is the term for the area where urine drainage occurs in the kidney?

<p>Renal hilum (C)</p> Signup and view all the answers

What happens if hydronephrosis, left untreated, leads to renal failure?

<p>Pyelonephritis (C)</p> Signup and view all the answers

What is the term used for the spaces within the renal medulla where urine collects before entering the ureters?

<p>Calyces (A)</p> Signup and view all the answers

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