exam4b Flashcards
(30 cards)
What are the 3 functions of CSF?
Buoyancy, protection from shock, chemical stability
What are nerve tracts that cross sides called?
Contralateral
How many pairs of spinal nerves are there?
31
What disease attacks motor neurons and results in paralysis?
Polio
Where is the epidural space found?
In spinal cord, not brain
What drugs can pass the blood-brain barrier?
Alcohol, caffeine, nicotine
What is the choroid plexus?
Mass of capillaries that sit in ventricles
What is the function of the midbrain?
Eye movement, cerebral aqueduct, cell bodies of cranial nerves
What is the utero disease where the spine herniates instead of forming properly?
Spina bifida
What are the 3 parts of the brain stem?
Midbrain, pons, medulla
What is inflammation of the meninges called?
Meningitis
What are circumventricular organs?
Places in 3rd and 4th ventricles where barrier is not present to monitor and respond to changes in blood glucose, pH, etc
What are the 3 layers of meninges on the brain, from outer to inner?
Periosteal layer dura mater, meningeal layer dura mater, arachnoid mater, pia mater
What is the mnemonic for the 12 cranial nerves?
Only one of the two athletes felt very good victorious and healthy
What disease attacks motor neurons in the spinal cord?
ALS
What is the word for when nerve tracts cross sides?
Decussation
What are nerve tracts that don’t cross sides called?
Ipsilateral
What is the hypothalamus?
Thermoregulation, homeostasis via autonomic nervous system, hunger/thirst
What is the thalamus?
Gateway to cerebral cortex
What are ependymal cells?
On top of choroid plexus, turn blood into CSF
Where is the arachnoid mater located?
Brain surface
Where is the meningeal layer of dura mater located?
Wraps brain and spinal cavity
Where is the periosteal layer of dura mater located?
Pressed against skull, not in spinal cord
What is the mnemonic for the 12 pairs of cranial nerves?
Some say marry money but my brother says big brains matter more
