Using the image attached that says axon hillock, answer this question:

1. what type of neurons are the red & green neuron and explain how you know

Using the second attached image (black & white one), answer the following questions:

1. Why are cells D needed for sensory/motor neurons?

2. What would occur if there was a loss of calcium to cells “H”

3. Which letter (s) represent the starting point of action potential? Pick every letter that applies and list it here

Case study question:

Brianna went to the doctor as she was showing symptoms of deficits in memory which includes having trouble remembering where she placed objects, recent conversations, and appointments to name a few. Recently, she became more irritated and lashed out at her parents, while not being able to regulate her emotions, social behavior, planning, language, spatial navigation, and higher-level thought. Her doctor diagnosed her with early stage Alzheimer’s disease.

Answer the questions below:

1. pick one symptom and describe what area of the brain has been affected to cause those symptoms

2. Amyloid plaques are hard, insoluble accumulations of proteins that clump together between the nerve cells (neurons) in the brains of Alzheimer’s disease patients. How could this cause the symptoms of the patients?

3. Her doctor prescribed her a drug called a cholinesterase inhibitor. Much like a neurotoxin, it slows the action of acetylcholinesterase. How could this assist to fight off the disease?

4. What type of drug was this?

a. agonist

b. antagonist