Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
53 Cards in this Set
- Front
- Back
|
Basal spinal cord
|
motor/ventral
|
|
|
Alar spinal cord
|
sensory/dorsal
|
|
|
Basal brainstem
|
Motor/MIDDLE
|
|
|
Alar brainstem
|
Sensory/Lateral
|
|
|
Where do autonomic neurons develop?
|
Sulcus limitans
|
|
|
What are the 3 types of motor columns in the brainstem?
|
1. GSE - general somatic
2. GVE - general visceral 3. SVE - special visceral |
|
|
What does the general somatic efferent column contain?
|
CN 3, 4, 6, 12
|
|
|
What does the GVE column contain?
|
Parasympathetic components of CNs 3, 7, 9, 10
|
|
|
What does the SVE column contain?
|
Innervation to branchial arch derivitives
|
|
|
What cranial nerves innervate branchial arch derived muscles?
|
5, 7, 9, 10, 11
|
|
|
What are the four SENSORY columns in the brainstem?
|
1. Special visceral SVA
2. General visceral GVA 3. General somatic GSA 4. Special somatic SSA |
|
|
What info is carried by SVA columns?
|
Taste (gustation)
Olfaction |
|
|
What CNs are SVA?
|
7 9 10
|
|
|
What info is carried in GVA columns?
|
Info from internal organs
|
|
|
What cranial nerves have GVA components?
|
9 and 10
|
|
|
What info is contained in GSA columns?
|
General touch, temp and pain.
|
|
|
What CNs have GSA components?
|
5, 7, 9, and 10
|
|
|
What info is carried in SSA columns?
|
Some hearing and vestibular, a little vision.
|
|
|
What cranial nerve has SSA?
|
CN VIII
|
|
|
Where are the fibers for GENERAL columns?
|
In the Spinal cord AND brainstem
|
|
|
Where are the fibers for SPECIAL columns?
|
ONLY in the brainstem
|
|
|
Where does sensory information enter the spinal cord?
|
From the dorsal root ganglion into lissauer's tract
|
|
|
What is Lissauer's tract?
|
A tract where pain afferents can run up or down a level or two
|
|
|
Where does sensory info go after lissauer's tract?
|
To Substantia gelatinosa and Rexed laminae 1/2/3 in the posterior horn
|
|
|
Where does sensory info ascend in the spinal cord?
|
-Dorsal columns
-Anterolateral Spinothalamic tract |
|
|
How do autonomic afferents (GVAs) get into the spinal cord?
|
Just like GSA's - thru the DRG
|
|
|
Where do autonomic afferents ascend in the spinal cord?
|
In the interomediolateral columns
|
|
|
Are there any special visceral or special somatic afferents in the dorsal spinal cord? Why or why not?
|
No - because these are only in the brainstem.
|
|
|
What is the Trigeminal system?
|
The dorsal root ganglion for the trigeminal nerve system.
|
|
|
What are the 3 components of the trigemenal system?
|
-Semilunar ganglion
-Mesencephalic nucleus -Spinal tract and nucleus |
|
|
What is the Semilunar ganglion?
|
The trigeminal ganglion; the DRG for the trigeminal system.
|
|
|
What is the Mesencephalic nucleus?
|
A misplaced DRG that recieves sensory input for the jaw jerk reflex.
|
|
|
What is the Spinal tract and spinal nucleus of V a correlate of?
|
Lissauer's tract and Substantia gelatinosa in the normal spinal cord.
|
|
|
Where does the Spinal tract and nucleus run in the spinal cord?
|
From the pons to C2
|
|
|
What info is carried within the Spinal tract of V?
|
General somatic afferent
|
|
|
Where does the 2nd neuron go after synapse in the Spinal nucleus of V?
|
To the anterolateral tract to ascend to the VPM - pain/temp.
|
|
|
Where does info pertaining to touch and proprioception go?
|
To the Chief Nucleus of V
|
|
|
Where does the 2nd neuron go after synapse with the Chief nucleus of V?
|
To the dorsal columns.
|
|
|
Where do the dorsal and ventral Trigeminothalamic tracts ascend to?
|
The VPM in the thalamus.
|
|
|
Where does the trigeminal 3rd neuron go from the VPM in thal?
|
To somatosensory cortex.
|
|
|
What type of info does the Nucleus solitarius recieve?
|
-General visc afferents from internal organs
-Special visc afferents from the tongue - taste |
|
|
Where does taste input go in the NTS?
|
-Laterally
-Rostral |
|
|
Where do the organ general visceral affernts go?
|
-Medially
-Caudal |
|
|
What cranial nerves carry taste to the NTS, via what exact ganglia?
|
CN VII - via Geniculate
Cn IX - via Petrosal CN X - via nodose |
|
|
What cranial nerves carry general visc afferents from internal organs to the NTS?
|
IX and X
|
|
|
After synapsing in the nucleus solitarius, where does the sensory input go?
|
To the VPM, then to the
-Insula (taste) -Somatosensory cortex |
|
|
What type of info does the Vestibulocochlear nucleus recieve?
|
Special somatic afferent
|
|
|
What is the DRG for the Vestibular apparatus?
|
Vestibular ganglion
|
|
|
What is the DRG for the Cochlea?
|
The spiral ganglion
|
|
|
Where do the Vestibular ganglion and spiral ganglion project?
|
To the vestibular nuclei
|
|
|
Where do the vestibulospinal tracts project?
|
-Up the MLF to the Abducens nucleus
-Down the spinal cord to control posture and balance. |
|
|
If you had problems with balance where would you look in the brainstem?
|
In the lateral brainstem
|
|
|
Why?
|
Because the lateral vestibulospinal tract carries vestibular output controlling balance at all spinal levels.
|
