Flashcards in CNS Deck (39)
What is the "bark" of the brain?
We want a lot of cerebral cortex, but our skull space doesn't have enough room. What features of the brain allows for increase in surface area to allow more cortex?
Gyri and sulci
Gyri are _____. Sulci are _____.
What are the 4 major landmarks of the brain?
What structure of the brain is involved in balance and coordination?
For each lobe of the brain, is there different types of cortex?
What are the 4 lobes of the brain?
What is the function of the frontal lobe?
Planning and initiating motor movement
What is the function of the temporal lobe?
Language comprehension and production; memory and learning; vision
What is the function of the parietal lobe?
Interpreting sensory input from the body; vision and somatosensory integration areas; written language
What is the function of the occipital lobe?
Where is the primary motor cortex located?
Anterior to the central sulcus; frontal lobe
What is the collective term for a large number of interconnected nuclei and area of the brain involved in learning, memory, emotion, and executive function?
What are the 6 limbic nuclei?
-Hippocampus and entorhinal cortex
-Endogenous reward system
-Orbitofrontal cortex & dorsolateral prefrontal cortex
LIMBIC NUCLEI: Which of the 6 is involved with learning and memory?
Hippocampus and entorhinal cortex
LIMBIC NUCLEI: What is one of the first parts of the brain that is harmed when you have alzehimers?
LIMBIC NUCLEI: What is the function of amygdala?
Emotion, specifically fear
LIMBIC NUCLEI: What are the characteristics of the endogenous reward system?
Happiness, pleasure, dopamine
LIMBIC NUCLEI: What is the hypothalamus involved in?
LIMBIC NUCLEI: What is the role of the orbitofrontal cortex and dorsolateral prefrontal cortex?
Social and executive function
LIMBIC NUCLEI: With demential patients, sometimes they have a "dead" dorsolateral prefrontal cortex. What does that mean?
That would be the underlying cause to why dementia patients with a dead dorsolateral prefrontal cortex are so mean and crude.
LIMBIC NUCLEI: What nuclei plays a large role in mental disorders, specifically ADD and OCD?
What are the 5 parts of an axon?
Axon, dendrites, cell body, myelin, and synaptic terminal
Do infants have fully developed myelin sheaths?
Do any of our neurons touch each other?
What are the 3 ways neurotransmitters are cleared from the synapse?
What is reuptake?
Reabsorption of the neurotransmitter into the neuron
What is enzymatic degradation?
Destruction of the neurotransmitter with special chemicals called enzymes
What is diffusion?
The neurotransmitter becoming detached from the receptor and drifting out of the synaptic cleft
What are the 3 groups for the major CNS neurotransmitters?
What neurotransmitter is part of the cholinergic?
Acetylcholine-Associated with alzehimers
What are the 2 neurotransmitters part of the amino acids?
AMINO ACIDS: What does glutamate do?
Biosynthesis of proteins
AMINO ACIDS: What does GABA do?
Relaxes, slows processes in the brain; associated with anxiety; muscle tone
What are the 3 neurotransmitters of the monoamines?
MONOAMINES: What does dopamine regulate?
MONOAMINES: What does norepinephrine regulate?
MONOAMINES: What does serotonin regulate?