Nervous System Organization
What are the 2 main parts of the nervous system?
Central & peripheral
What's a neuron?
A brain cell that transfers information to other neurons.
What is the name for an ancient practice that involved drilling holes into the skull & was done to relieve built-up pressure, release evil spirits, & drain infection?
Trepanation
True or false: We only use 10% of our brain.
False
Which part of the brain is anterior?
Front
Which parts of the nervous system houses the brain & spinal cord?
Central
What's the function of a glial cell?
To protect & nourish neurons & get rid of metabolic waste.
Which idea constitutes that the brain is different from and controlled by the spiritual mind?
Dualism
True or false: left brainers are more logical than right brainers.
False
What does it mean for something to be contralateral?
On one side, controlling another
How does the PNS communicate with the CNS?
Through the spinal cord.
Which part of the neuron brings information in?
Dendrites
A scientist is developing a study to determine intellectual traits based on the size & shape of children’s heads. What is this practice called?
Craniometry
True or false: vaccines cause autism.
False
Which part of the brain is similar to a shark's fin?
Dorsal
What's a reflex arc?
Sensory & motor neurons working together to prevent damage.
Which part of a neuron protects it & helps with processing speed?
Myelin sheath
A football player has an injury during their game, and is sent to the emergency room. The player follows up with their primary care team afterwards. During this time, they’re paired with a nurse. The nurse believes that the player should go to physical therapy, change their diet, and manage stress. What approach are they using?
Holistic
True or false: Having depression means you're irrational.
False
Something hurts in the back of my brain. What part is this?
Posterior
What's the purpose of a neuron's membrane?
To keep an electrical charge that allows communication, and to supervise what goes in/out
What are the 6 major parts of a neuron?
Dendrites, cell body/soma, axon, axon terminal, myelin sheath. Nodes of Ranvier
What's transhumanism?
Using technology to enhance people’s capacities (physical, mental)
False. Transhumanism is the process of enhancing human function using technology.
Which nerve is involved in the fight or flight response?
Vagus nerve