The Spinal Cord
The Spinal Cord is part of which main branch of the Nervous System?
Central Nervous System
True or False? The cells within your brain are capable of regenerating.
False
Where in the body does Meningitis occur?
In the spinal meninges
What is the job of a neuron?
To work with other neurons in sending Action Potentials across the body.
What is the name of the fluid that provides a form of shock absorption for the Spinal Cord?
Cerebrospinal fluid (CSF)
What is the job of the Choroid Plexus?
Production of CSF
What part of the neuron does Multiple Schlerosis affect?
What are the nodes of Ranvier?
The gaps found in between myelinated areas of an axon.
What are the 3 structures that protect the Spinal Cord?
CSF, Vertebral Column (Spine), Spinal Meninges
Explain the difference between the right and left hemispheres of the Cerebrum.
Right Hemisphere: Deals with creativity and emotion.
Left Hemisphere: Deals with logistics, language and critical thinking.
What is a Cerebrovascular Accident?
The interruption of blood flow to the brain, causing the deprivation of oxygen "stroke."
What is the purpose of Schwann Cells?
Myelinate the axon to better carry Action Potentials.
What is the purpose of a Spinal Tap?
Inspection of CSF for the identification of neurological disorders.
What is a function that both the medulla oblongata and the pons are responsible for?
Rhythmic Breathing
What is the cause for dementia in patients who develop Alzheimer Disease?
There is a loss of neurons that release acetylcholine.
What is the resting membrane potential of a neuron?
-70 millivolts
Name and explain the 5 components of a reflex arc.
Receptor: Respond to stimuli and activate sensory neuron
Sensory Neuron: Send information to integrating center
Integrating Center: Analyze and interpret information
Motor Neuron: Receive information from integrating center
Effector: Muscle or Gland that responds to signal.
What is the difference between the Thalamus and Hypothalamus?
The Hypothalamus is involved in emotional responses through the use of hormones, while the Thalamus is involved in learning and memory (most memories are tied to emotions).
How do neurotransmitters such as acetylcholine help with cell communication?
They stimulate the next neuron in line, so that an Action Potential can continue throughout the body.