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

Previous problemNext problem

Struggling with Anatomy & Physiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which of the following conditions stimulates the pancreas to secrete insulin?

Increased sympathetic nervous activity

Decreased blood oxygen levels

Elevated blood glucose levels

Low blood calcium levels

Previous problemNext problem

Verified step by step guidance

Understand the role of insulin: Insulin is a hormone secreted by the pancreas, specifically by the beta cells in the islets of Langerhans. Its primary function is to regulate blood glucose levels by promoting the uptake of glucose into cells and reducing blood sugar levels.

Identify the stimulus for insulin secretion: Elevated blood glucose levels act as the primary stimulus for insulin secretion. When blood sugar levels rise, such as after eating a meal, the pancreas detects this increase and releases insulin to help restore homeostasis.

Eliminate incorrect options: Increased sympathetic nervous activity typically inhibits insulin secretion because the body prioritizes energy mobilization during stress or 'fight-or-flight' responses. Decreased blood oxygen levels and low blood calcium levels are not directly related to insulin secretion.

Relate elevated blood glucose levels to homeostasis: Elevated blood glucose levels signal the need for insulin to facilitate glucose uptake by cells, particularly muscle and fat cells, and to store excess glucose as glycogen in the liver. This process helps maintain stable blood sugar levels.

Conclude the correct condition: Elevated blood glucose levels are the primary physiological condition that stimulates the pancreas to secrete insulin, ensuring the body maintains energy balance and glucose homeostasis.