Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 39m
3. Energy & Cell Processes10h 8m
4. Tissues & Histology10h 3m
5. Integumentary System2h 28m
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 System3h 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

9. Muscle Tissue

Steps of Muscle Contraction

Anatomy & Physiology

9. Muscle Tissue

Steps of Muscle Contraction

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Multiple Choice

Acetylcholinesterase __________.

activates acetylcholine

helps acetylcholine bind to its receptor

breaks down acetylcholine

is another name for acetylcholine

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Verified step by step guidance

Understand the role of acetylcholinesterase in the nervous system. Acetylcholinesterase is an enzyme that is crucial for the proper functioning of cholinergic synapses.

Recognize that acetylcholine is a neurotransmitter involved in transmitting signals across synapses, particularly in the neuromuscular junction.

Learn that acetylcholinesterase breaks down acetylcholine in the synaptic cleft. This process is essential for terminating the signal transmission and preventing continuous stimulation of the post-synaptic neuron or muscle cell.

Consider the options given: 'activates acetylcholine', 'helps acetylcholine bind to its receptor', 'breaks down acetylcholine', and 'is another name for acetylcholine'. Only one of these accurately describes the function of acetylcholinesterase.

Conclude that the correct answer is 'breaks down acetylcholine', as this is the primary function of acetylcholinesterase in the synaptic cleft.