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

Nervous Tissue: The Neuron

Anatomy & Physiology

4. Tissues & Histology

Nervous Tissue: The Neuron

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Multiple Choice

Which of the following statements about nervous system communication is NOT correct?

Neurotransmitters are released into the synaptic cleft to transmit signals.

Electrical signals in neurons travel in both directions along the axon.

Neurons communicate with each other through synapses.

The myelin sheath increases the speed of nerve impulse conduction.

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Verified step by step guidance

Begin by understanding the basic structure and function of neurons. Neurons are the fundamental units of the brain and nervous system responsible for receiving sensory input, sending motor commands, and relaying electrical signals.

Next, review the concept of synapses. Synapses are the junctions between neurons where neurotransmitters are released to transmit signals from one neuron to another.

Consider the role of neurotransmitters. These chemical messengers are released into the synaptic cleft, the space between neurons, to facilitate communication between neurons.

Examine the function of the myelin sheath. The myelin sheath is a fatty layer that surrounds the axon of some neurons, increasing the speed of nerve impulse conduction by allowing electrical signals to jump between nodes of Ranvier.

Finally, evaluate the directionality of electrical signals in neurons. Electrical signals typically travel in one direction along the axon, from the cell body to the axon terminals, not in both directions. This is a key point to identify the incorrect statement.