Flashcards in Introduction to Nervous System Deck (12)
What is contained in the 1) white matter 2) grey matter
1) oligodendrocytes and bundles of axons
2) neuron soma + dendrites and glial cells
What is the significance of the kink between midbrain and diencephalon?
the orientation of the brain is not in a vertical line, so "dorsal" describes location of two different axis and the kink is where the dividing point is
what are the ridges of the cerebrum
gyrus / gyri
what are the grooves of cerebrum
sulcus / sulci
T/F the lobar organisation shows functional significance
false, the boundaries are very arbitrary
Does Brodmann areas show functional significance? How many areas are there?
What is the main function of cerebellum?
compares what you want to do with what you are doing. It provides error correction for motor program
What is the main function of basal ganglia? What are the three main areas of BG?
initiates voluntary movements, provide basic motor pattern for complex movement to build on
Caudate, putamen, globus pallidus
What are the two main functions of hypothalamus?
regulate homeostasis and control pituitary
To what spinal segment does the spinal cord terminate?
What is falx cerebri? and what is its function?
a strong, arched fold of dura mater that descends vertically in the longitudinal fissure between the cerebral hemispheres
it divides the cerebral hemispheres and has a protective role against trauma