axon
sensory neuron or receptor neuron.
Sensory receptor, sensory neuron, interneuron, motor neuron, and muscle.
An aceticoceptor is a part of a molecule which acts as a receptor for acetyl groups.
The space between two neurons or between a neuron and a receptor is known as a synapse. In this gap, neurotransmitters are released from the presynaptic neuron and bind to receptors on the postsynaptic neuron, allowing for communication between the two cells.
The receptor!
Adenosine receptors stick through the neuron membrane, so that part of them are on the inside and part is on the outside of the cell. Now, when adenosine, a natural chemical in the body, attaches to the adenosine receptor it shifts the shape of the receptor, this shift reaches all the way to the part on the inside of the cell, and causes the receptor to release attached molecules called G-proteins. These g-proteins now float around the inside of the cell and have all sorts of effects, in this case, to inhibit the neuron. Caffeine also binds to the adenosine receptor, but it doesn't activate the receptor. This means that the receptor is totally shut down, and can't work to inhibit the neuron any more. The end effect is to allow the neuron to be more active than it was before the caffeine.
The first order sensory neuron can sometimes be a sensory receptor because it is what sends the signal to the brain from the receptor. The second order goes from the brainstem to the thalamus.
receptor
The post-synaptic part of a neuron in humans is typically referring to the dendrites and cell body (soma). These structures receive signals from other neurons via neurotransmitters released at synapses.
Receptor → Sensory Neuron → Associative Neuron→ Motor division →Effectors
Summarized below are the 5 major components of the reflex arc: 1. Receptor 2. Afferent (sensory) neurons 3. Association neuron 4. Efferent (motor) neurons 5. Effector
A sensory receptor is the type of neuron that begins a reflex arc.