In the following figure, which label points to a dendrite? 

The correct answer is Arrow 4.

Key Points

• Dendrites are the branched extensions of a neuron that receive signals from other neurons and conduct these signals toward the cell body.
• They play a crucial role in the neural communication system by transmitting electrical stimulation received from other neural cells to the neuron's cell body.
• Dendrites typically have a large surface area due to their branched structure, which allows for the reception of signals from multiple neurons.
• They are covered with synapses, which are the points of contact where the dendrites receive chemical or electrical signals from other neurons.
• In the figure, Arrow 4 correctly identifies the dendrite, which is a key component in the process of synaptic transmission in the nervous system.

Additional Information

• Axon
  • The axon is a long, slender projection of a neuron that conducts electrical impulses away from the neuron's cell body.
  • Axons are responsible for transmitting information to different neurons, muscles, and glands.
• Cell Body (Soma)
  • The cell body is the spherical part of the neuron that contains the nucleus and connects to the dendrites and axon.
  • It is essential for maintaining the neuron's metabolic functions and integrating incoming signals.
• Synapse
  • A synapse is the junction between two neurons where information is transmitted from one neuron to another.
  • It consists of the pre-synaptic ending, synaptic cleft, and post-synaptic ending, facilitating neural communication.