Neurons and Signal Transmission Concepts

The video tutorial covers the nervous system, focusing on nerve cells or neurons. It explains the structure of a nerve cell, including dendrites, axon, and myelin. The process of nerve impulse transmission is described as an electrical signal traveling in one direction. The role of synapses and neurotransmitters in transmitting signals between neurons is also discussed. The video includes a diagram labeling exercise to reinforce learning.

What is the primary function of neurons in the nervous system?

• To digest food

• To store energy

• To transmit information

• To produce hormones

Which part of the nerve cell receives signals from other neurons?

• Axon

• Cell body

• Dendrites

• Myelin

What is the role of myelin in nerve cells?

• To slow down signal transmission

• To speed up signal transmission

• To store neurotransmitters

• To protect the cell body

In which direction do nerve impulses travel?

• Circular directions

• Random directions

• Only one direction

• Both directions

What is the synapse?

• The axon terminal

• The space between neurons

• The nucleus of a neuron

• The cell body of a neuron

What type of signal is a neurotransmitter?

• Thermal

• Magnetic

• Chemical

• Electrical

How do neurotransmitters continue the signal transmission?

• By entering the cell body

• By binding to receptors

• By dissolving in the synapse

• By creating new neurons

What happens when neurotransmitters bind to receptors on the adjacent cell?

• The signal stops

• The signal is reversed

• The signal continues

• The cell dies

What is the final destination of a signal transmitted by neurons?

• The digestive system

• A muscle or gland

• The bloodstream

• Another neuron

What ensures that neurotransmitters bind correctly to receptors?

• Their size

• Their temperature

• Their shape

• Their color