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

1. Introduction to Anatomy & Physiology

What is Anatomy & Physiology?

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

What is Anatomy & Physiology?

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Multiple Choice

In the context of anatomy and physiology, anything that responds by contracting or secreting (such as a muscle or gland) is called a what?

Effector

Receptor

Integrator

Stimulus

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Verified step by step guidance

Understand the question: The problem is asking for the term used to describe something in the body that responds by contracting (like a muscle) or secreting (like a gland).

Review the definitions of the provided options: - Effector: A structure (muscle or gland) that responds to a stimulus by performing an action, such as contracting or secreting. - Receptor: A structure that detects changes in the environment (stimuli) and sends information to the control center. - Integrator: Often the central nervous system, which processes information from receptors and sends commands to effectors. - Stimulus: Any change in the environment that can be detected by a receptor.

Identify the key action described in the question: The question specifies 'responds by contracting or secreting,' which aligns with the function of an effector.

Eliminate incorrect options: - Receptor is incorrect because it detects stimuli, not responds to them. - Integrator is incorrect because it processes information, not performs actions. - Stimulus is incorrect because it is the trigger, not the responder.

Conclude that the correct answer is 'Effector,' as it is the term used to describe muscles or glands that respond to stimuli by contracting or secreting.