[216B] Neuro Part 1 A&P Review Flashcards
In the PNS, the afferent division is responsible for ____ info while the efferent division is responsible for ____ info
sensory, motor
What 3 receptors send sensory info to the afferent division?
- Special
- Visceral
- Somatic
What is the CNS compromised of (2)?
Brain + spinal cord
What is the all or none principle?
Action potential will fire 100% at -55 mV
What are the 4 major brain regions?
- Cerebrum
- Cerebellum
- Diencephalon
- Brain stem
What 3 regions does the diencephalon consist of?
- Thalamus
- Hypothalamus
- Epithalamus
What 3 structures does the brain stem consist of?
- Midbrain
- Pons
- Medulla oblongata
What is the difference between broca’s and wernicke’s area?
Broca’s: ability to speak (motor)
Wernicke’s: language comprehension (sensory)
What are basal nuclei?
Masses of gray matter found deep in each cerebral hemisphere
What are basal nuclei responsible for?
Subconsciously control skeletal muscle tone and learned movements
What does the epithalamus secrete?
Melatonin
Where is CSF produced?
3rd and 4th ventricle
What is the main function of CSF?
Support brain (submerged)