Neural Homeostatic Control Pathways

• What cell transport nerve impulses from sensory receptors to neurons?

  Sensory neurons.
• What cell transports nerve impulses from neurons to effectors.

  Motor neurons.
• What is the structure of a motor neuron?

  Long axon, no receptor, cell body terminal & has dendrites, many short dendrites.
• What is the structure of a sensory neuron?

  Short Axon, Receptor, cell body at the side: no dendrites, one dendron.
• Explain the pathway of a nerve impulse.

  An action potential reaches the presynaptic terminal, it causes neurotransmitter to be released from the neuron into the synaptic cleft, (a gap between the presynaptic axon terminal and the postsynaptic dendrite). After travelling across the synaptic cleft, the transmitter will attach to neurotransmitter receptors on the postsynaptic side and positive ions (Na, Ca, + K) will travel through channels that span the membrane.
• What is an action potential?

  An action potential is a brief electrical impulse that travels along the membrane of a neuron, allowing for the transmission of signals between neurons.