Steroid and non-steroid hormones bind to the same receptors

Steroid hormonal signalling is selective in terms of specificity of the effects caused by different hormones

Steroid hormonal signalling causes metastases (cancers)

Steroid hormonal signalling involves the same DNA binding domains

Steroid hormonal signalling is noisy in terms of specificity of the effects caused by different hormones

Beta adrenaline

Only nicotinic ACh

ACh or NA

Only muscarinic ACh

Only ACh

Chemico-electrical synapse

G protein coupled synapse

Discrete synapse

2nd messenger synapse

Diffuse synapse

At the post-ganglionic synapse

In the CNS

At the ganglion

At the pre-ganglionic synapse

In the pre-synaptic terminals

A Varicosity

An output terminal

A Terminal

A diffuse terminal

A Discrete synapse