Understanding the Nervous System

What are the main parts of a neuron?

• Axon, cell membrane, nucleus

• Dendrites, glial cells, myelin

• Cell body, dendrites, axon

• Soma, synapse, neurotransmitter

What is the function of dendrites in a neuron?

• To transmit signals to other neurons.

• To protect the neuron from damage.

• The function of dendrites in a neuron is to receive signals from other neurons.

• To store genetic information for the neuron.

Describe the role of the axon in neural communication.

• The axon acts as a storage unit for neurotransmitters.

• The axon receives signals from other neurons only.

• The axon is responsible for producing hormones in the brain.

• The axon transmits electrical impulses and releases neurotransmitters to communicate with other cells.

What is the myelin sheath and its importance?

• The myelin sheath is a protective covering of nerve fibers that enhances signal transmission speed in the nervous system.

• The myelin sheath is a layer of skin that protects the body from infections.

• The myelin sheath is a fluid that nourishes brain cells.

• The myelin sheath is a type of muscle tissue that contracts during movement.

How do neurotransmitters function in the nervous system?

• Neurotransmitters only function in the brain.

• Neurotransmitters are hormones that regulate mood.

• Neurotransmitters function by transmitting signals between neurons across synapses.

• Neurotransmitters are responsible for muscle contraction.

What are the two main divisions of the nervous system?

• Cerebral Nervous System and Spinal Nervous System

• Autonomic Nervous System and Somatic Nervous System

• Sympathetic Nervous System and Parasympathetic Nervous System

• Central Nervous System and Peripheral Nervous System

What is the role of the central nervous system?

• The central nervous system regulates body temperature only.

• The central nervous system controls and coordinates all bodily functions and responses.

• The central nervous system is primarily involved in the immune response.

• The central nervous system is responsible for digestion.

Name a common disease that affects the nervous system.

• Diabetes mellitus

• Multiple sclerosis

• Parkinson's disease

• Alzheimer's disease

What are the symptoms of multiple sclerosis?

• Severe headaches and migraines

• Common symptoms of multiple sclerosis include fatigue, difficulty walking, numbness or tingling, muscle weakness, vision problems, and cognitive changes.

• Skin rashes and hives

• Frequent colds and flu-like symptoms

How does Parkinson's disease affect the nervous system?

• Parkinson's disease affects the nervous system by causing the degeneration of dopamine-producing neurons, leading to motor and non-motor symptoms.

• It leads to the overproduction of adrenaline in the body.

• Parkinson's disease primarily affects the digestive system.

• It causes an increase in serotonin levels in the brain.