Flashcards in Nerves 1 Deck (26):
Ridge on the cerebral cortex of the brain
Depression on the cerebral cortex of the brain
4 lobes of the cerebrum?
What is the diencephalon?
Posterior part of the forebrain
What two structures are found in the diencephalon?
3 parts of the brainstem?
- Medulla oblongata
Functions controlled by the brainstem?
- Basic functions
- BP, RR
- Balance and coordination
How many pairs of spinal nerves are there?
How many cranial nerve pairs are there?
List the number of nerve pairs from cervical to coccygeal
C - 8
T - 12
L - 5
S - 5
C - 1
What is the function of nerves that leave through the ventral root?
Function of nerves that leave through the dorsal root?
What is a ganglion?
A set of soma outside the spinal cord
What makes up the white matter?
What makes up the grey matter?
What is another name for the initial segment of an axon?
What is the function of the axon hillock?
Triggers the action potential if the threshold is reached
What happens at the presynaptic terminals?
Neurotransmitter is released
What 3 types of neurones dose the somatic nervous system have
- Afferent (sensory)
- Efferent (motor)
What are glia?
Support cells of the CNS
What proportion of the CNS is glia?
3 types of glial cells?
2 functions of astrocytes?
- Maintain external environment
- Maintain blood brain barrier
Function of oligodendrocytes?