These release testosterone, which controls changes in a male's body and regulates sperm production.

The "master gland" of the endocrine system, a gland that controls many body activities.

What hormone is responsible for the "fight or flight" response?

What gland secretes thyroxin causing metabolism to increase?

Which structure in neural communication passes messages through its branches?

Peter was diagnosed with a disorder of the nervous system. His doctor explained that his brain is releasing neurotransmitters, the neurotransmitters are not being received. This means that his neurons most likely have which of the following malfunctioning?

In a neuron, the _____ conducts information to other neurons, and the _____ receives information from other neurons?

Heart rate, digestion, pupil dilation are involuntary processes controlled by the ____ nervous system

The _________ helps control voluntary movements.

The fatty layer of cells that is wrapped around many axons is called the