How much is the weight of an adult human brain in grams (in $\text{ g}$)?

$(a)$ Draw the structure of a neuron and label the following on it:
Nucleus,Dendrite,Cell body,and Axon.
$(b)$ Name the part of the neuron:
$(i)$ Where information is acquired.
$(ii)$ Through which information travels as an electrical impulse.

What happens at the synapse between two neurons?

Name the hormones secreted by the thyroid,parathyroid,and pancreas.

Which is the most complex part of the brain?

Which is the main thinking part of the brain? State how it functions.