Exam 1: Lab 2: brainstem external & internal; structures, CN, and sensory pathways Flashcards
What landmark, region, or structure is indicated by the red line?
superior colliculus
What landmark, region, or structure is indicated by the red line?
inferior colliculus
What landmark, region, or structure is indicated by the red line?
gracile fasciculus
What landmark, region, or structure is indicated by the red line?
cunate fasciculus
What landmark, region, or structure is indicated by the red line?
crus cerebri
What landmark, region, or structure is indicated by the red line?
superior cerebellar peduncle
What landmark, region, or structure is indicated by the red line?
middle cerebellar peduncle
What landmark, region, or structure is indicated by the red line?
gracile tubercle
Using the landmarks, regions, and structures you have learned, what region is this image or cross-section of?
dorsal view of the brainstem
What landmark, region, or structure is indicated by the red line?
optic chiasm
What landmark, region, or structure is indicated by the red line?
mamillary bodies
What landmark, region, or structure is indicated by the red line?
uncus
What landmark, region, or structure is indicated by the red line?
basilar pons
What landmark, region, or structure is indicated by the red line?
pyramid
What landmark, region, or structure is indicated by the red line?
olive
What landmark, region, or structure is indicated by the red line?
anterior median fissure
What landmark, region, or structure is indicated by the red line?
optic (CN II)
What landmark, region, or structure is indicated by the red line?
oculomotor (CN III)
What landmark, region, or structure is indicated by the red line?
facial (CN VII)
What landmark, region, or structure is indicated by the red line?
vagus (CN X)
What landmark, region, or structure is indicated by the red line?
hypogloassal (CN XII)
What landmark, region, or structure is indicated by the red line?
accessory (CN XI)
What landmark, region, or structure is indicated by the red line?
trochlear (CN IV)
CN What landmark, region, or structure is indicated by the red line?
trigeminal (CN V)
What landmark, region, or structure is indicated by the red line?
abducens (CN VI)
What landmark, region, or structure is indicated by the red line?
vestibulocochlear (CN VIII)
What landmark, region, or structure is indicated by the red line?
glossopharyngeal (CN IX)
Using the landmarks, regions, and structures you have learned, what region is this image or cross-section of?
ventral view of the brainstem
What landmarks, regions, or structures can you recognize? Use this image and the labeled image on flip side to review.
What landmarks, regions, or structures can you recognize? Use this image and the un-labeled image on flip side to review.
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
nucleus gracilis
caudal medulla
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
nucleus cuneatus
caudal medulla
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
corticospinal tract
caudal medulla
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
inferior olivary nucleus
rostral medulla
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
4th ventricle
rostral medulla
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
corticospinal tract
rostral medulla
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
deep cerebellar nuclei
caudal pons
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
superior cerebellar peduncle
caudal pons
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
pontocerebellar fibers
caudal pons
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
corticospinal tract
caudal pons
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
superior cerebellar peduncle
mid rostral pons
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
peraqueductal gray matter
mid rostral pons
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
pontine nuclei
mid rostral pons
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
basis pedunculi
caudal midbrain
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
inferior colliculus
caudal midbrain
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
substantia nigra
caudal midbrain
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
basis pedunculi
rostral midbrain
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
superior colliculus
rostral midbrain
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
periaqueductal gray matter
rostral midbrain
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
red nucleus
rostral midbrain
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
substantia nigra
rostral midbrain
Using the landmarks, regions, and structures you have learned, what region is this image or cross-section of?
closed (caudal) medulla
Using the landmarks, regions, and structures you have learned, what region is this image or cross-section of?
open (rostral) medulla
Using the landmarks, regions, and structures you have learned, what region is this image or cross-section of?
caudal pons
Using the landmarks, regions, and structures you have learned, what region is this image or cross-section of?
rostral pons
Using the landmarks, regions, and structures you have learned, what region is this image or cross-section of?
caudal midbrain
Using the landmarks, regions, and structures you have learned, what region is this image or cross-section of?
rostral midbrain
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
Lissauer’s tract
spinal cord
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
fasiculus graciculus
spinal cord
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
anterior commissure
spinal cord
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
Spinothalamic tract
spinal cord
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
Lissauer’s tract
spinal cord
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
fasciculus gracilis
spinal cord
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
fasciculus cuneatus
spinal cord
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
anterior commissure
spinal cord
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
spinothalamic tract
spinal cord
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
nucleus gracilis
caudal medulla
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
nucleus cuneatus
caudal medulla
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
spinal trigeminal nucleus
caudal medulla
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
spinal trigeminal tract
caudal medulla
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
spinothalamic tract
caudal medulla
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
medial lemniscus
caudal medulla
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
internal arcuate fibers
caudal medulla
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
solitary nucleus
rostral medulla
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
solitary tract
rostral medulla
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
trigeminothalamic tract
rostral medulla
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
spinal trigeminal nucleus
rostral medulla
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
spinal trigeminal tract
rostral medulla
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
medial lemniscus
rostral medulla
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
spinothalamic tract
rostral medulla
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
principal sensory trigeminal nucleus
caudal pons
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
trigeminal motor nucleus
caudal pons
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
mesencephalic trigeminal nucleus and tract
caudal pons
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
spinothalamic tract
caudal pons
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
medial lemniscus
caudal pons
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
trigeminothalamic tract
caudal pons
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
mesencephalic trigeminal nucelus and tract
Rostral pons
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
trigeminothalamic tract
Rostral pons
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
medial lemniscus
Rostral pons
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
spinothalamic tract
Rostral pons
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
mesencephalic trigeminal nucleus and tract
caudal midbrain
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
spinothalamic tract
caudal midbrain
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
trigeminothalamic tract
caudal midbrain
What landmark, region, or structure is indicated by the red line?
Where was this image sliced at?
medial lemniscus
caudal midbrain
At which level does the dorsal column-medial lemniscus pathway decussate?
the dorsal column-medial lemniscus pathway decussation occurs in the caudal “closed” medulla
At which level does the anterolateral pathway decussate?
the anterolateral pathway decussation occurs in the spinal cord
Be able to identify the location of the medical lemniscus fibers that carry sensation** information from the **cervical spinal roots
The somatotopography of the rostral medulla medial lemniscus is organized with cervical levels in the superior ML and sacral levels in the inferior ML.
Be able to identify the location of the medical lemniscus fibers that carry sensation** information from the **cervical spinal roots
The somatotopography of the pontine medial lemniscus is organized with cervical levels in the medial ML and sacral levels in the lateral ML.
Compare the locations of the medical lemniscus fibers that carry sensation** information from the **cervical spinal roots in the rostral medulla vs the pontine
The somatotopography of the rostral medulla medial lemniscus is organized with cervical levels in the superior ML and sacral levels in the inferior ML.
The somatotopography of the pontine medial lemniscus is organized with cervical levels in the medial ML and sacral levels in the lateral ML.
The indicated region is in the _____ pons and contains the _____ _____ and the _____ _____
The indicated region is in the rostral pons and contains the trigeminothalamic tract and the trigeminal lemniscus
A patient has a loss of pain/temp sensation, but not fine touch, on the left side of the body starting at the T5 dermatome and below.
Where is the lesion?
The lesion is on:
the right ventral spinal cord.
A patient has a lesion in the area indicated on the image below.
Select all modes of sensation that would be deficient in the patient.
You would be deficient in:
Fine touch left side of body below head
&
Pain / temp left side of face
