Dr. Rochet 34 Flashcards
what are the 3 regions of the brain
Hindbrain
Midbrain
Forebrain
What makes up the Hindbrain
Medulla
Pons
Cerebellum
What does the medulla do
controlls respiration, cardiac function, vasomoter response, and reflexes
- involuntary functions
what does the cerebellum do
Allowing movements to be smooth and controlled
- neurodegeneration happening here results in spinocerebellar ataxias (disjointed or jerky movement)
What does the Pons do
Sends signals from the forebrain to the cerebellum
What is apart of the midbrain
Substantia nigra
which has compacta and reticulata parts
What does the substantia nigra compacta do
Provides input to the basal ganglia and supplies dopamine to the striatum which are in the basal ganglia
Undergoes neuodegeneration in PD
What does the substantia nigra reticulata do
relays signals from the basal ganglia to the thalamus
What makes up the forebrain
Cortex
basal ganglia
limbic system
Diencephalon
What does the cortex do
Processing and interpreting information
like talking
What does the basal ganglia do
voluntary motor control and some cognitive function
what does the limbic system do
emotions (amygdala)
Memory (hippocampus)
what does the diencephalon do
Thalamus: relay station to and from the cortex the cortex
Hypothalamus: regulates internal homeostasis, emotions. Hormonal control and direct neural regulations
what is an astrocyte and what is its role
It is a glial cell
it is the most abundent glial cell in the brain and it works to provide nuerons with growth factors, antioxidants
it removes excess glutamate
also supports the blood brain barrier
What is a oligodendrocyte and what is its role
It is a glial cell and it provides myelin sheath that insulates axons
