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

14. The Autonomic Nervous System

Neurotransmitters of the ANS

Anatomy & Physiology

14. The Autonomic Nervous System

Neurotransmitters of the ANS

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2:16 minutes

Problem 5

Textbook Question

Biogenic amine neurotransmitters include all but
a. Norepinephrine
b. Acetylcholine
c. Dopamine
d. Serotonin

Verified step by step guidance

Step 1: Understand the term 'biogenic amine neurotransmitters'. These are a group of neurotransmitters derived from amino acids and include molecules like norepinephrine, dopamine, and serotonin. They play key roles in transmitting signals in the nervous system.

Step 2: Review the options provided in the question: a. Norepinephrine, b. Acetylcholine, c. Dopamine, d. Serotonin.

Step 3: Recall that acetylcholine is not classified as a biogenic amine neurotransmitter. Instead, it belongs to a different category of neurotransmitters called 'cholinergic neurotransmitters'.

Step 4: Confirm that norepinephrine, dopamine, and serotonin are indeed biogenic amine neurotransmitters, as they are derived from amino acids like tyrosine and tryptophan.

Step 5: Conclude that the correct answer is the option that does not belong to the biogenic amine category, which is acetylcholine.

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Key Concepts

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

Biogenic Amines

Biogenic amines are organic compounds that function as neurotransmitters in the nervous system. They are derived from amino acids and include key neurotransmitters such as dopamine, norepinephrine, and serotonin. These molecules play crucial roles in regulating mood, arousal, and various physiological functions.

Neurotransmitters

Neurotransmitters are chemical messengers that transmit signals across synapses between neurons. They bind to specific receptors on target cells, influencing various bodily functions and behaviors. Understanding the different types of neurotransmitters, including their synthesis and action, is essential for grasping their roles in the nervous system.

Acetylcholine

Acetylcholine is a neurotransmitter that is not classified as a biogenic amine; instead, it is derived from acetyl-CoA and choline. It plays a vital role in muscle contraction and is involved in various functions in the central and peripheral nervous systems, including memory and learning. Recognizing its distinction from biogenic amines is crucial for answering the question.