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

What is the primary function of the neuromuscular junction?

To generate red blood cells in the bone marrow

To transmit nerve impulses from motor neurons to muscle fibers, causing muscle contraction

To store calcium ions for muscle relaxation

To provide structural support to the skeletal system

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Verified step by step guidance

Understand the term 'neuromuscular junction': The neuromuscular junction (NMJ) is a specialized synapse where a motor neuron communicates with a skeletal muscle fiber to initiate muscle contraction.

Identify the key components of the neuromuscular junction: These include the motor neuron, the synaptic cleft, the motor end plate (on the muscle fiber), and neurotransmitters such as acetylcholine (ACh).

Recognize the primary function: The NMJ's main role is to transmit nerve impulses (action potentials) from the motor neuron to the muscle fiber. This transmission triggers a series of events leading to muscle contraction.

Eliminate incorrect options: Generating red blood cells occurs in the bone marrow, storing calcium ions happens in the sarcoplasmic reticulum, and providing structural support is a function of the skeletal system, not the NMJ.

Conclude that the correct answer is: 'To transmit nerve impulses from motor neurons to muscle fibers, causing muscle contraction,' as this directly describes the NMJ's role in the body.