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Flashcards in Trigeminal System Deck (28)
1

how does one study the CNS structures

anatomically
electrophysiological
neurological

2

what ways are restricted to animal studies for looking CNS structure

anatomical
electrophysiological

3

what ways are restricted to human studies for looking CNS structure

neurological

4

what are the anatomical was of studying the CNS

dissection of brain
structure of nuclei
where do nerves go and synapse
where do second order cells go

5

what are the electrophysiological ways of studying the CNS

what types of peripheral stimuli excite cells in the nuclei

6

what are the neurological ways of studying the CNS

what happens if one or more nucleus destroyed by disease

7

what is the trigeminal sensory pathway

primary afferent neurone

trigger ganglion

trigeminal senhor nulei

trigemini-thalamic tract

thalamus

somatosensory cortes

8

what are the branches of the sensory part of the trigeminal nerve

ophthalmic

maxillary

mandibular

9

what is a ganglion

collection of nerve cells bodies in the PNS

10

what are the ganglia associated with the peripheral trigeminal nerve

trigemina ganglion
mesencephalic nucleus

11

what are the roots of the tirgeminal nerve

sensory
motor

12

what are the component of the trigeminal sensory nucleus

nucleus oralis
nucleus interpolaris
nucleus caudalis

13

what happens when there is damage to nucleus caudalis

trigeminal tractotomy
-- loss ipsilateral facial pain, temp
- still feel touch

14

what is the N. caudalis the site for

for synapses for pain, hot and cold

15

what is the experimental evidence as to what the nucleus oralis does

nociceptive inputs
more for reflexes rater than sensation - jaw jerk

16

what happens if there is damage the main sensory nucleus

ipsilateral loss touch to face
still fee pain, hot and cold
may also have other CNS lesions

17

what is the MSN the site for

synapse for touch

18

what is the function for nucleus interpolaris

reflexes??

19

what are the efferent and afferent fibres of th motor root of trigemini

efferent - muscle of mastication

afferent - from all muscle spindles and some PDLM's

20

what do the muscle kindles give

indiction length and stretch

21

what is PDLM

periodontal ligament

22

what are the cell bodies for in the trigem mesencephalic nucleus

jaw muscle spindle afferents
mechanoreceptorafferents fromPDLM

23

where are the primary afferent cell bodies fro Vmes

wishing nervous system unique

24

are thee synapses in the Vmes

no

25

where do the neves assc with the Vmes synapse

V motor nucleus

26

where is the trigem motor nucleus

medial to the MSN in the pons

27

what doe the trigem motor nucleus receive inputs from

Vmes
motor cortex

28

what are the efferents for the V motor nucleus

exit via motor root mandibular div
supply muscles mast