Overview of the Cental Nervous System Flashcards
What are the four main functions of the nervous system?
- ) Receive sensory message from environment
- ) Integrate new inputs with information already stored
- ) Use integrated information to send out messages
- ) Provide the basis for conscious experiences and cognitive abilities
Where are unipolar neurons found?
Only invertebrates
Where are pseudo-unipolar neurons found?
Sensory nerves including all sensory CN except I, II, VIII
Which cranial nerves are bipolar?
I
II
VIII
What is the function of cranial nerve I, II, VIII?
I: smell
II: vision
VIII: hearing and balance
Where are bipolar neurons found?
Only in the periphery
What are multipolar neurons?
Neurons with more than two processes emerging from the soma
Three divisions of the brain:
Forebrain
Midbrain
Hindbrain
What are the divisions of the forebrain?
Telencephalon
Diencephalon
What is the telencephalon composed of?
Neocortex
Hippocampus
Basal ganglia
What is the diencephalon composed of?
Thalamus
Hypothalamus
What is the midbrain composed of?
Superior colliculus
Inferior colliculus
What is the hindbrain composed of?
Cerebellum
Pons
Medulla
What is the brainstem composed of?
Midbrain
Pons
Medulla
What are the three embryologic parts of the brain and what are they the equivalent of in adults?
Prosencephalon: Forebrain
Mesencephalon: Midbrain
Rhombencephalon: Hindbrain
