Nervous System Functions and Components

The video explains the nervous system, highlighting its components and functions. It introduces neurons as the building blocks, describing their unique structure and role in transmitting information. The video covers the myelin sheath's insulating function and the Schwann cells' role. It distinguishes between the central nervous system, comprising the brain and spinal cord, and the peripheral nervous system, which extends throughout the body. The video emphasizes the nervous system's importance in decision-making and overall functioning.

What makes neurons unique compared to other cells in the body?

• They do not require oxygen.

• They are found in every part of the body.

• They can divide and multiply rapidly.

• They are only found in the nervous system.

What is the primary function of dendrites in a neuron?

• To transmit information to other neurons.

• To receive information from other neurons.

• To insulate the neuron.

• To produce energy for the neuron.

What is the role of the axon in a neuron?

• To receive signals from other neurons.

• To store genetic information.

• To transmit signals to other neurons.

• To insulate the neuron.

What is the function of the myelin sheath?

• To insulate the neuron and speed up signal transmission.

• To produce neurotransmitters.

• To protect the neuron from infections.

• To store nutrients for the neuron.

What are Schwann cells responsible for?

• Producing neurotransmitters.

• Forming the myelin sheath around axons.

• Transmitting electrical impulses.

• Receiving signals from other neurons.

What are the two main components of the nervous system?

• Axons and dendrites.

• Neurons and glial cells.

• Brain and spinal cord.

• Central nervous system and peripheral nervous system.

Which parts of the body are included in the central nervous system?

• Brain and spinal cord.

• Heart and lungs.

• Nerves and ganglia.

• Muscles and bones.

What is the primary role of the central nervous system?

• To digest food.

• To take decisions and think.

• To transmit signals to muscles.

• To produce hormones.

What does the peripheral nervous system consist of?

• Muscles and bones.

• Nerves that branch throughout the body.

• Brain and spinal cord.

• Heart and lungs.

How does the peripheral nervous system interact with the central nervous system?

• It produces neurotransmitters for the central nervous system.

• It insulates the neurons in the central nervous system.

• It takes decisions and sends them to the central nervous system.

• It receives instructions from the central nervous system and acts on them.