In music, a sound that has a definite pitch is called a

 You can tell this work is written in the late middle ages because it is

The soul of a Verdi opera is                                         .

The madrigal began around 1520 in which country?

 This excerpt is composed by

Acetylcholine (ACh) is primarily removed from the synaptic cleft by

What was Henry Dale’s principle?

The neuromuscular junction is part of the peripheral nervous system.

The neuromuscular junction is part of the peripheral nervous system.

Diseases like ALS can cause neuronal cell death through excitotoxicity, where