they receive excitatory inputs that depolarise them closer to AP threshold and pre-synaptic inhibition that selectively blocks all inputs

the axon hillock has a lower threshold to produce an AP than the dendrites

they receive both inputs that depolarise them closer to AP threshold and inputs that hyperpolarise them further from AP threshold

the excitatory inputs that depolarises them can sum but the inhibitory inputs that hyperpolarises them cannot sum

they receive excitatory or inhibitory inputs that depolarise them closer to AP threshold at the axon hilloc