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Ch. 24 The Urinary System
Amerman - Human Anatomy & Physiology 2nd Edition
Amerman2nd EditionHuman Anatomy & PhysiologyISBN: 9780136873822Not the one you use?Change textbook
All textbooksAmerman 2nd EditionCh. 24 The Urinary SystemProblem 15
Chapter 24, Problem 15

Normal urine should have which of the following properties? Circle all that apply.
a. Translucency
b. Yellowish pigment
c. Cloudy appearance
d. pH less than 4.5

Verified step by step guidance
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Step 1: Understand the normal properties of urine. Normal urine is typically translucent, meaning it is clear enough to see through, but not completely transparent.
Step 2: Recognize the color of normal urine. It usually has a yellowish pigment due to the presence of urochrome, a pigment resulting from the breakdown of hemoglobin.
Step 3: Evaluate the appearance of urine. Cloudy urine is not a normal property and may indicate the presence of an infection, excess protein, or other abnormalities.
Step 4: Assess the pH range of normal urine. The pH of normal urine typically ranges from 4.5 to 8. A pH less than 4.5 would be considered abnormally acidic and not a normal property.
Step 5: Based on the above information, identify which options (a, b, c, d) align with the normal properties of urine and exclude those that do not.

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Key Concepts

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

Urine Characteristics

Normal urine typically has specific characteristics, including translucency and a yellowish pigment due to the presence of urochrome. These properties indicate proper hydration and metabolic function. Abnormal characteristics, such as cloudiness, may suggest the presence of substances like bacteria or crystals, indicating potential health issues.
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Urine pH

The pH of normal urine usually ranges from 4.5 to 8, with an average around 6. A pH less than 4.5 is considered acidic and may indicate conditions such as metabolic acidosis or dehydration. Understanding urine pH is essential for assessing metabolic and renal health.
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Urinalysis

Urinalysis is a common diagnostic tool used to evaluate the physical, chemical, and microscopic properties of urine. It helps in detecting abnormalities that may indicate various health conditions. Recognizing normal versus abnormal findings in urinalysis is crucial for effective clinical assessment.
Related Practice
Textbook Question

Which of the following conditions does not contribute to the creation and/or maintenance of the medullary osmotic gradient?

a. The countercurrent exchanger of the vasa recta

b. The countercurrent multiplier of the nephron loops of cortical nephrons

c. The countercurrent multiplier of the nephron loops of juxtamedullary nephrons

d. The permeability of the medullary collecting system to urea and other ions

Textbook Question

Net filtration pressure in most capillary beds favors:

a. Absorption

b. Osmosis

c. Filtration

d. Secretion

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Textbook Question

Dilute urine is produced when decreased levels of______ are secreted.

a. Aldosterone

b. Atrial natriuretic peptide

c. ADH

d. None of the above

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Textbook Question

The kidneys produce _____ urine when the osmolarity of the body's fluids increases. They produce _____ urine when the osmolarity of the body's fluids decreases.

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Textbook Question

Fill in the blanks for each of the following statements:

a. The process by which urine is eliminated is called _____, and it is mediated by reflexes involving the _____ nervous system.

b. The mucosa of the organs of the urinary tract is lined with _____ epithelium.

c. The three layers of smooth muscle in the urinary bladder are known as the _____ muscle.

d. The female urethra provides a passageway for _____, whereas the male urethra provides a passageway for _____ and _____.

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Textbook Question

The GFR may be estimated by measuring the rate at which certain substances are removed from the blood, which is known as:

a. Renal clearance

b. Plasma creatinine

c. Glomerular hydrostatic pressure

d. Inulin estimation