Ascending Sensory Pathways 2 Flashcards Preview

Spot Test 2- Lower Limb > Ascending Sensory Pathways 2 > Flashcards

Flashcards in Ascending Sensory Pathways 2 Deck (18):
1

Where are the Cranial Nerve Nuclei located in the brainstem?

Tegmentum

Motor Nuclei are more Medial than sensory nuclei

2

Which area of the Head does the Trigeminal Nerve (CN5) provide sensation from?

Face, Nose, Scalp, Dura Mater

3

Which area of the Head does the Facial Nerve (CN7) provide sensation from?

External Ear

4

Which area of the Head does the Glossopharyngeal Nerve (CN9) provide sensation from?

Middle Ear, Pharynx, Posterior 1/3 Tongue

5

Which area of the Head does the Vagus Nerve (CN10) provide sensation from?

Auditory Canal, Pharynx, Larynx, Oesophagus

6

Which sensory pathway does sensation from the head travel in?

Trigeminal Sensory Pathway

(Trigeminothalamic Tract)

7

Divisions of the Trigeminal Nuclei, and where are they located?

Mesencephalic Nucleus (Midbrain)

Pontine/ Chief Sensory Nucleus (Pons)

Spinal Nucleus (Medulla)

8

Where do primary neurons delivering TOUCH AND PRESSURE sensation from the face synapse in the Trigeminal Nucleus?

ROSTRAL Spinal Nucleus

9

Where do primary neurons delivering PAIN AND TEMPERATURE sensation from the face synapse in the Trigeminal Nucleus?

CAUDAL Spinal Nucleus

10

How do Touch and Pressure; Pain and Temperature Fibres enter the Trigeminal Nucleus?

Descend in Spinal Tract (Lateral to nuclei)

11

Where are the cell bodies of Touch and Pressure; Pain and Temperature; Discriminatory Touch primary neurones?

Trigeminal Ganglion

12

Where do primary neurons delivering 2-POINT DISCRIMINATORY TOUCH sensation from the face synapse in the Trigeminal Nucleus?

Pontine/Chief Sensory Nucleus

13

Where do primary neurons delivering PROPRIOCEPTION sensation from the face synapse in the Trigeminal Nucleus?

ALONGSIDE the Mesencephalic Nucleus

14

What nerve is Proprioception mainly delivered in?

Mandibular (CNV3)

15

Where are the cell bodies of Proprioception primary neurones?

Within the Mesencephalic Nucleus

16

How do secondary neurones associated with the Trigeminal Nucleus ascend to the thalamus?

Trigeminothalamic Pathway

Secondary neurones synapse and cross the midline and ascend to the contralateral Thalamus via the Cerebral Peduncles

17

Where in the Thalamus do fibres of the Trigeminothalamic Tract project to?

VPM Nucleus

18

Where in the primary Somatosensory cortex is sensation from the face mapped to?

Lateral Post-Central Gyrus