Activity 2.3.1: The Hormone Connection
While the nervous system communicates using electrical signals, the bodys
endocrine system uses chemical signals, called hormones, to regulate body
functioning. Hormones are proteins involved in maintain
Activity 2.3.2: Hormones Gone Wild
The endocrine system releases hormones to maintain homeostasis and uses
feedback to regulate the levels of these chemical signals. Hormones help balance
the amount of water in our body, the amount of calcium
Activity 2.2.2: The Secret to Signals
The secrets of neuron communication have been studied by scientists for centuries.
We have learned that chemical and electrical factors work together to send signals.
We know that the brain and spinal cor
Activity 2.2.3: Its all in the Reflexes
Although we are all different and have our unique identity, there are times when we
behave in exactly the same way. We blink if something is headed toward our eyes.
We pull our hands away quickly