Which of the following compounds works by crossing the synaptic cleft and is involved in triggering contraction of muscles, stimulating the excretion of hormones, and exciting the nervous system?

Which of the following compounds works by crossing the synaptic cleft and is involved in triggering contraction of muscles, stimulating the excretion of hormones, and exciting the nervous system?

Repolarization of the neuron is associated with what event in the action potential?

Repolarization of the neuron is associated with what event in the action potential?

Which portion of the brain is responsible for controlling breathing and heart rate?

Which portion of the brain is responsible for controlling breathing and heart rate?

Which portion of the neuron receives electrical signals from other neurons?

Which portion of the neuron receives electrical signals from other neurons?

Which portion of the nervous system is responsible for increasing digestive and excretory activity in the body?

Which portion of the nervous system is responsible for increasing digestive and excretory activity in the body?