Cranial Nerves Flashcards
What are the 4 classifications of cranial nerves?
- Sensory
- Special sensory
- Motor
- Mixed
Which type of cranial nerve carries somatic sensory info, including touch, pressure, heath, vibration, pain, etc?
Sensory nerves
Which type of cranial nerve carries the info of smell, sigh, hearing, balance?
Special sensory nerves
Which type of cranial nerve contains axons of motor neurons?
Motor nerves
Which type of cranial nerve contains a mixture of motor and sensory fibers?
Mixed nerves
A bundle of peripheral axons is a ________
Nerve
What is a Tract?
a bundle of central axons
What is white matter?
brain or cord tissue composed primarily of myelinated axons or tracts
What is gray matter?
brain or cord tissue composed mainly of cell bodies and unmyelinated fibers
What does Cerebrospinal fluid do?
Cushions neural structures, supports brain, transports nutrients chemical messengers, and waste
What fluid interchanges with interstitial fluid of the brain?
Cerebrospinal fluid
What surrounds all exposed surfaces of the Central Nervous System?
Cerebrospinal fluid
