Table of contents

1. Introduction to Anatomy & Physiology5h 42m
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 Heart2h 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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Multiple Choice

The major calyces are the __________.

large branches of the renal pelvis

expanded ends of nephrons

functional units of the kidneys

pyramid-shaped structures in the renal medulla

capsules surrounding each kidney

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Verified step by step guidance

Understand the anatomy of the kidney: The kidney is composed of several structures, including the renal cortex, renal medulla, renal pelvis, and nephrons.

Identify the role of the renal pelvis: The renal pelvis is a funnel-shaped structure that collects urine from the kidney and channels it into the ureter.

Recognize the function of major calyces: Major calyces are large branches that extend from the renal pelvis and collect urine from the minor calyces, which in turn collect urine from the renal pyramids.

Differentiate between the options: Expanded ends of nephrons refer to the glomerulus and Bowman's capsule, functional units of the kidneys are nephrons, pyramid-shaped structures in the renal medulla are renal pyramids, and capsules surrounding each kidney are the renal capsules.

Conclude that the major calyces are large branches of the renal pelvis, as they are responsible for collecting urine from the minor calyces and channeling it into the renal pelvis.