Activity 2.1.1:
Mind Matters
Mind Matters
The part of the nervous system made up of the brain and spinal cord.
Answer: What is the CNS?
The part of the brain that coordinates balance and movement.
What is the cerebellum?
DOUBLE JEOPARDY: The most common neuron type with multiple dendrites.
What is a multipolar neuron?
The rapid electrical signal created when sodium rushes into the neuron.
What is an action potential?
This type of molecule mimics a neurotransmitter and activates a receptor.
What is an agonist?
An involuntary, fast response that skips the brain.
What is a reflex?
This role leads the lab and secures funding for research.
Who is the Principal Investigator (PI)?
The sensory cortex is located in this lobe.
What is the parietal lobe?
The neuron type that sends information from the body to the CNS.
What is a sensory neuron?
DOUBLE JEOPARDY: The gap where neurons communicate using neurotransmitters.
What is the synapse?
This type of molecule blocks a receptor and prevents the neurotransmitter from binding.
What is an antagonist?
A response requiring brain processing and therefore slower.
What is a reaction?
DOUBLE JEOPARDY: The PNS’s job in the CNS–PNS relationship.
What is transmitting signals to and from the CNS?
This case revealed how damage to the frontal lobe affects personality.
Who is Phineas Gage?
A neuron with one axon and one dendrite, found in the retina.
What is a bipolar neuron?
Ion that moves out of the neuron during repolarization.
What is potassium (K⁺)?
This type of drug binds to a receptor and causes the opposite effect of the normal neurotransmitter.
What is an inverse agonist?
The structure struck during the knee-jerk reflex test.
What is the patellar tendon?
The lab role responsible for daily operations and equipment.
Who is the Lab Manager?
These brain surface structures increase cortical surface area.
What are gyri and sulci?
Neurons that connect sensory and motor neurons.
What are interneurons?
The minimum charge needed to trigger an action potential.
What is threshold?
These drugs block the reabsorption of neurotransmitters, increasing their levels in the synapse.
What are reuptake inhibitors?
DOUBLE JEOPARDY: Reflex arcs involve this type of neuron that connects sensory and motor pathways.
What is an interneuron?
These researchers work in a lab after earning their doctorate.
Who are postdoctoral students?
DOUBLE JEOPARDY: The patient whose surgery showed the difference between conscious and unconscious memory.
Who is H.M. (Henry Molaison)?
A neuron with a single process that splits into two branches.
What is a pseudounipolar neuron?
What would happen if K+ channels were blocked.
No repolarization after depolarization.
DOUBLE JEOPARDY
Match each of the following drugs to one of the four mechanisms of drug action:
diphenhydramine - inverse agonist
morphine - agonist
caffeine - antagonist
cocaine - reuptake inhibitor
The main reason reactions take longer than reflexes.
What is extra processing time in the brain?