Dendrites primarily function to

Dendrites primarily function to

• A. Transmit electrochemical signals to another cell
• B. Receive chemical messages across synapses
• C. Produce hormones
• D. Store memory

Answer: (B)

Dendrites act as the neuron's input branches. Their primary job is to receive chemical messages—neurotransmitters released by other neurons at synapses. When these chemicals bind to receptors on the dendritic membrane, ion channels open or close, creating small electrical changes that can summate with other inputs. If the combined signals are strong enough, they trigger an action potential in the neuron, allowing the signal to travel along the axon to communicate with other cells. Other roles mentioned don’t match dendrites’ main function. Transmitting signals to another cell is mainly the job of the axon. Hormone production is typically a function of glands (and sometimes neuropeptides in specialized cases), not dendrites. Memory involves complex changes across neural networks and synapses; while dendrites participate in learning by adjusting how they respond to inputs, they aren’t storing memory themselves.

Dendrites act as the neuron's input branches. Their primary job is to receive chemical messages—neurotransmitters released by other neurons at synapses. When these chemicals bind to receptors on the dendritic membrane, ion channels open or close, creating small electrical changes that can summate with other inputs. If the combined signals are strong enough, they trigger an action potential in the neuron, allowing the signal to travel along the axon to communicate with other cells.

Other roles mentioned don’t match dendrites’ main function. Transmitting signals to another cell is mainly the job of the axon. Hormone production is typically a function of glands (and sometimes neuropeptides in specialized cases), not dendrites. Memory involves complex changes across neural networks and synapses; while dendrites participate in learning by adjusting how they respond to inputs, they aren’t storing memory themselves.