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

16. The Endocrine System

Introduction to the Endocrine System

Anatomy & Physiology

16. The Endocrine System

Introduction to the Endocrine System

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Multiple Choice

The two lobes of the thyroid gland are joined by a narrow bridge of tissue called the:

follicle

capsule

hilum

isthmus

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Verified step by step guidance

Step 1: Begin by understanding the anatomy of the thyroid gland. The thyroid gland is a butterfly-shaped endocrine gland located in the neck, consisting of two lobes (right and left) connected by a central structure.

Step 2: Learn the terminology associated with the thyroid gland. The narrow bridge of tissue connecting the two lobes is called the 'isthmus.' This term is specific to the thyroid gland and refers to the central portion that joins the lobes.

Step 3: Differentiate the isthmus from other anatomical terms provided in the options. For example, 'follicle' refers to the microscopic functional units of the thyroid gland, 'capsule' refers to the connective tissue surrounding the gland, and 'hilum' is a term used for the entry/exit point of vessels and nerves in other organs, not the thyroid.

Step 4: Confirm that the isthmus is the correct answer by visualizing or referencing diagrams of the thyroid gland. This will help solidify your understanding of its location and function.

Step 5: Apply this knowledge to future questions about thyroid anatomy, ensuring you can identify the isthmus and its role in connecting the lobes of the thyroid gland.