Caudal Pons Flashcards
1
Q
Facial nerve
A
- Bend around the abducens nucleus causes facial colliculus
2
Q
Facial nucleus
A
- Caudal pons
- Motor nerve fibers for muscles of facial expression
3
Q
Anterolateral sytem
A
- Pain, tempreture & crude touch
- Three ascending pathways
- Spinothalamic tracts
- Spinoreticulotract
- Spinotectal tracts
4
Q
Medial lemniscus
A
- Well localized touch vibration & joint sensation
- Connection between dorsal column nuclei (cuneate & fasiculus) and the thalamus
- Run through the arcuate fibers
5
Q
Corticofugal fibers
A
Input from cortex into the pons
6
Q
Pontine nuclei
A
- motor activity
- Termination of corticofugal fibers and projection to the pontocerebellar projections
7
Q
Trapezoid body
A
Crossing fibers for the auditory pathway in the pons
8
Q
Raphe nucleus
A
Seronin containing nuclei in the midline
9
Q
Abducens nerve
A
Innervates lateral rectus for lateral eye movement
10
Q
Spinal tract & nucleus of trigeminal nerve
A
- Pain & temperature sensory information, 1st order receptors for CN III.
- Run through the lateral medulla
11
Q
Medial Longitudinal Fasiculus
A
- Horizontal eye movements
- In the midline, ventral to the ventricle sysytem
12
Q
Abducens nucleus
A
Innervates lateral rectus for lateral eye movement
13
Q
4th Ventricle
A
- Ventricular system
- Dorsal to the brain stem from mid-medulla through pons
