Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

25. The Urinary System

The Kidneys

Anatomy & Physiology

25. The Urinary System

The Kidneys

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Problem 15

Textbook Question

Which structures of the urinary system are responsible for the transport, storage, and elimination of urine?

Verified step by step guidance

Identify the main components of the urinary system involved in the transport, storage, and elimination of urine: ureters, urinary bladder, and urethra.

Understand the role of the ureters: These muscular tubes transport urine from the kidneys to the urinary bladder through peristaltic contractions.

Examine the function of the urinary bladder: This hollow, muscular organ stores urine temporarily until it is ready to be eliminated. The bladder's walls expand as it fills with urine.

Learn about the urethra: This tube carries urine from the bladder to the outside of the body during the process of urination. The length and structure of the urethra differ between males and females.

Recognize the coordination of these structures during urination: The bladder contracts, the internal and external urethral sphincters relax, and urine is expelled through the urethra.

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Key Concepts

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

Urinary Tract Anatomy

The urinary system consists of several key structures, including the kidneys, ureters, bladder, and urethra. The kidneys filter blood to produce urine, which is then transported through the ureters to the bladder, where it is stored until elimination. Understanding the anatomy and function of these components is essential for comprehending how urine is managed in the body.

Urine Transport Mechanism

Urine transport involves peristaltic movements in the ureters, which are muscular tubes that connect the kidneys to the bladder. This involuntary contraction helps propel urine downward into the bladder. Recognizing this mechanism is crucial for understanding how urine moves through the urinary system efficiently.

Urinary Elimination Process

The elimination of urine occurs through the urethra, a tube that carries urine from the bladder to the outside of the body. This process is regulated by sphincters that control the release of urine. Understanding the physiological and neurological aspects of this elimination process is vital for grasping how the body maintains fluid balance and waste removal.