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

4. Tissues & Histology

Introduction to Muscle Tissue

Anatomy & Physiology

4. Tissues & Histology

Introduction to Muscle Tissue

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Multiple Choice

Which of the following statements about the stimulation of muscle cells is true?

Muscle cells are stimulated by changes in blood pressure.

Muscle cells can be stimulated by direct electrical impulses from the brain.

Muscle cells are stimulated by neurotransmitters released from motor neurons.

Muscle cells are stimulated by hormones released into the bloodstream.

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Verified step by step guidance

Understand that muscle cells, specifically skeletal muscle cells, are primarily stimulated by signals from the nervous system.

Recognize that motor neurons play a crucial role in this process. They release neurotransmitters at the neuromuscular junction, which is the synapse between a motor neuron and a muscle fiber.

Identify the neurotransmitter involved in this process, which is typically acetylcholine. This neurotransmitter binds to receptors on the muscle cell membrane, initiating a response.

Differentiate between the types of stimuli that can affect muscle cells. While hormones and blood pressure changes can influence muscle function, the direct stimulation for contraction comes from neurotransmitters.

Conclude that the correct statement is that muscle cells are stimulated by neurotransmitters released from motor neurons, as this is the primary mechanism for initiating muscle contraction.