Pons Cross-Sections

 

Links
Brainstem-1
Brainstem-5
Brainstem-2
Brainstem-6
Brainstem-3
And just for fun...
Brainstem-4

 

Pons Slide #1

1- Fourth Ventricle

2- Nodulus

3- Dentate Nucleus

4- Reticular Formation

5- Middle Cerebellar Peduncle

Sample slide questions:

1) Name structure #3, and the other associated nuclei.

2) How do the axons in #5 terminate?

 

Pons Slide #2

1- Fourth Ventricle

2- Reticular Formation

3- Middle Cerebellar Peduncle

4- Pontine Nuclei

5-Corticopontine,

Corticospinal, and Corticobulbar Fibers

Sample slide questions:

1) Assuming the fibers in #5 pass through the brainstem, where will they terminate?

2) Do the axons from #4 travel ipsi- or contralaterally??

 

Pons Slide #3

1- Fourth Ventricle

2- Superior Cerebellar Peduncle

3- Reticular Formation

4- Middle Cerebellar Peduncle

5- Pontine Nuclei

6- Corticopontine, Corticospinal, and Coriticobulbar Fibers

 

Sample slide questions:

1) Where are the nerve cell bodies that give rise to most of the fibers in #2?

2) Name one source of descending input to #5?

 

Pons Slide #4

1- Fourth Ventricle

2- Superior Cerebellar Peduncle

3- Reticular Formation

4- Middle Cerebellar Peduncle

5- Pontine Nuclei

6- Corticopontine, Corticospinal, and Coriticobulbar Fibers

7- Medial Lemniscus

Sample slide questions:

1) Name one destination of the fibers exiting the cerebellum through #2.

2) Where are the nerve cell bodies that give rise to #7.

 

Pons Slide #5

1- Fourth Ventricle

2- Superior Cerebellar Peduncle

3- Reticular Formation

4- Medial Lemniscus

5- Middle Cerebellar Peduncle

6- Pontine Nuclei

7- Corticopontine, Corticospinal, and

Coriticobulbar Fibers

Sample slide questions:

1) Name two destinations of the fibers exiting the cerebellum through #2.

2) Where will #4 terminate?

 

 

Pons Slide #6

1- Cerebral Aqueduct

2- Periaqueductal Gray

3- Reticular Formation

4- Descending Tracts

5- Pontine Nuclei

6- Medial Lemniscus

7- Lateral Lemniscus

8- Superior Cerebellar Peduncles

 

Sample slide questions:

1) What nuclei give rise to the fibers in #7?

2) What kind of information is carried in #6?

 

Pons-Midbrain Slide #7

1- Cerebral Aqueduct

2- Periaqueductal Gray

3-Decussation of Superior

Cerebellar Peduncle

4- Descending Tracts

5- Pontine Nuclei

6- Medial Lemniscus

7- Lateral Lemniscus

8- Inferior Colliculus

Sample slide questions:

1) What kind of information is carried in #7?

2) What fibers are crossing in #3?

 

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