Anatomy
Name the center of the neuron that contains the nucleus and organelles.
The Cell Body (Soma)
What is the term for when the nervous system keeps the body's internal environment balanced?
Homeostasis
By age 2, the human brain has already reached what percentage of its adult weight?
75%.
In Guillain-Barré Syndrome, what specific part of the nerve does the immune system attack?
The Myelin Sheath.
The nervous system relies on its connection to which other body system to send chemical signals and hormones throughout the body?
The Endocrine System.
These look like branches on a neuron and are responsible for receiving signals from other cells.
Dendrites
In the three-step process, what do you call the first step where receptors convert stimuli into electrical impulses?
Sensory Input.
What is the name of the process where the teenage brain "cleans out" unused neural connections?
Synaptic Pruning
Where in the body does GBS weakness or tingling usually begin?
The feet and legs.
Question: Once the nervous system processes information, it sends signals to organs like Glands or Muscles to create a physical movement. What is this step called?
Hint:
final step of the "three step operational process".
Was on the first slide called "Introduction to the nervous system".
Motor Output.
What is the fatty, lipid-rich layer that wraps around axons to increase signal speed and prevent leaks
The Myelin Sheath
What small, vital region of the brain acts as the "bridge" between the Nervous and Endocrine systems?
The Hypothalamus.
What is the term for the natural loss of brain volume and weight as humans reach senior age?
Brain Atrophy.
Why is GBS a medical emergency if it reaches the upper body?
It can paralyze the muscles used for breathing (requiring a ventilator).
According to the conclusion, the nervous system interacts with your Digestive system by requiring which two specific nutrients to maintain the Myelin Sheath?
Healthy Fats and B-Vitamins.